diff --git a/code/_globalvars/bitfields.dm b/code/_globalvars/bitfields.dm
index cc01b194bd8..eb8079bd902 100644
--- a/code/_globalvars/bitfields.dm
+++ b/code/_globalvars/bitfields.dm
@@ -137,6 +137,16 @@ DEFINE_BITFIELD(disease_flags, list(
 	"CURABLE" = CURABLE,
 ))
 
+DEFINE_BITFIELD(ss_flags, list(
+	"SS_NO_INIT" = SS_NO_INIT,
+	"SS_NO_FIRE" = SS_NO_FIRE,
+	"SS_BACKGROUND" = SS_BACKGROUND,
+	"SS_TICKER" = SS_TICKER,
+	"SS_KEEP_TIMING" = SS_KEEP_TIMING,
+	"SS_POST_FIRE_TIMING" = SS_POST_FIRE_TIMING,
+	"SS_OK_TO_FAIL_INIT" = SS_OK_TO_FAIL_INIT,
+))
+
 DEFINE_BITFIELD(flags_1, list(
 	"ADMIN_SPAWNED_1" = ADMIN_SPAWNED_1,
 	"ALLOW_DARK_PAINTS_1" = ALLOW_DARK_PAINTS_1,
diff --git a/code/controllers/master.dm b/code/controllers/master.dm
index 80a0c486fae..3303eed9c5c 100644
--- a/code/controllers/master.dm
+++ b/code/controllers/master.dm
@@ -191,7 +191,7 @@ ADMIN_VERB(cmd_controller_view_ui, R_SERVER|R_DEBUG, "Controller Overview", "Vie
 			"last_fire" = subsystem.last_fire,
 			"next_fire" = subsystem.next_fire,
 			"can_fire" = subsystem.can_fire,
-			"doesnt_fire" = !!(subsystem.flags & SS_NO_FIRE),
+			"doesnt_fire" = !!(subsystem.ss_flags & SS_NO_FIRE),
 			"cost_ms" = subsystem.cost,
 			"tick_usage" = subsystem.tick_usage,
 			"usage_per_tick" = average,
@@ -305,7 +305,7 @@ ADMIN_VERB(cmd_controller_view_ui, R_SERVER|R_DEBUG, "Controller Overview", "Vie
 				FireHim = TRUE
 			if(3)
 				msg = "The [BadBoy.name] subsystem seems to be destabilizing the MC and will be put offline."
-				BadBoy.flags |= SS_NO_FIRE
+				BadBoy.ss_flags |= SS_NO_FIRE
 		if(msg)
 			to_chat(GLOB.admins, span_boldannounce("[msg]"))
 			log_world(msg)
@@ -494,7 +494,7 @@ ADMIN_VERB(cmd_controller_view_ui, R_SERVER|R_DEBUG, "Controller Overview", "Vie
 		SS_INIT_NO_MESSAGE,
 	)
 
-	if ((subsystem.flags & SS_NO_INIT) || subsystem.initialized) //Don't init SSs with the corresponding flag or if they already are initialized
+	if ((subsystem.ss_flags & SS_NO_INIT) || subsystem.initialized) //Don't init SSs with the corresponding flag or if they already are initialized
 		subsystem.initialized = TRUE // set initialized to TRUE, because the value of initialized may still be checked on SS_NO_INIT subsystems as an "is this ready" check
 		return
 
@@ -599,7 +599,7 @@ ADMIN_VERB(cmd_controller_view_ui, R_SERVER|R_DEBUG, "Controller Overview", "Vie
 	var/timer = world.time
 	for (var/thing in subsystems)
 		var/datum/controller/subsystem/SS = thing
-		if (SS.flags & SS_NO_FIRE)
+		if (SS.ss_flags & SS_NO_FIRE)
 			continue
 		if (SS.init_stage > init_stage)
 			continue
@@ -607,7 +607,7 @@ ADMIN_VERB(cmd_controller_view_ui, R_SERVER|R_DEBUG, "Controller Overview", "Vie
 		SS.queue_next = null
 		SS.queue_prev = null
 		SS.state = SS_IDLE
-		if ((SS.flags & (SS_TICKER|SS_BACKGROUND)) == SS_TICKER)
+		if ((SS.ss_flags & (SS_TICKER|SS_BACKGROUND)) == SS_TICKER)
 			tickersubsystems += SS
 			// Timer subsystems aren't allowed to bunch up, so we offset them a bit
 			timer += TICKS2DS(rand(0, 1))
@@ -618,7 +618,7 @@ ADMIN_VERB(cmd_controller_view_ui, R_SERVER|R_DEBUG, "Controller Overview", "Vie
 		if(SS.init_stage == init_stage - 1 && (SS.runlevels & current_runlevel))
 			// Give em a random offset so things don't clump up too bad
 			var/delay = SS.wait
-			if(SS.flags & SS_TICKER)
+			if(SS.ss_flags & SS_TICKER)
 				delay = TICKS2DS(delay)
 			// Gotta convert to ticks cause rand needs integers
 			SS.next_fire = world.time + TICKS2DS(rand(0, DS2TICKS(min(delay, 2 SECONDS))))
@@ -720,7 +720,7 @@ ADMIN_VERB(cmd_controller_view_ui, R_SERVER|R_DEBUG, "Controller Overview", "Vie
 						continue
 					// If they're new, give em a random offset so things don't clump up too bad
 					var/delay = SS.wait
-					if(SS.flags & SS_TICKER)
+					if(SS.ss_flags & SS_TICKER)
 						delay = TICKS2DS(delay)
 					SS.next_fire = world.time + TICKS2DS(rand(0, DS2TICKS(min(delay, 2 SECONDS))))
 
@@ -813,7 +813,7 @@ ADMIN_VERB(cmd_controller_view_ui, R_SERVER|R_DEBUG, "Controller Overview", "Vie
 			continue
 		if (SS.next_fire > world.time)
 			continue
-		SS_flags = SS.flags
+		SS_flags = SS.ss_flags
 		if (SS_flags & SS_NO_FIRE)
 			subsystemstocheck -= SS
 			continue
@@ -855,7 +855,7 @@ ADMIN_VERB(cmd_controller_view_ui, R_SERVER|R_DEBUG, "Controller Overview", "Vie
 		while (queue_node)
 			if (ran && TICK_USAGE > TICK_LIMIT_RUNNING)
 				break
-			queue_node_flags = queue_node.flags
+			queue_node_flags = queue_node.ss_flags
 			queue_node_priority = queue_node.queued_priority
 
 			if (!(queue_node_flags & SS_TICKER) && skip_ticks)
diff --git a/code/controllers/subsystem.dm b/code/controllers/subsystem.dm
index 200c65a4c75..92a3e70d02f 100644
--- a/code/controllers/subsystem.dm
+++ b/code/controllers/subsystem.dm
@@ -34,8 +34,8 @@
 	/// Priority Weight: When multiple subsystems need to run in the same tick, higher priority subsystems will be given a higher share of the tick before MC_TICK_CHECK triggers a sleep, higher priority subsystems also run before lower priority subsystems
 	var/priority = FIRE_PRIORITY_DEFAULT
 
-	/// [Subsystem Flags][SS_NO_INIT] to control binary behavior. Flags must be set at compile time or before preinit finishes to take full effect. (You can also restart the mc to force them to process again)
-	var/flags = NONE
+	/// [Subsystem flags][SS_NO_INIT] to control binary behavior. ss_flags must be set at compile time or before preinit finishes to take full effect. (You can also restart the mc to force them to process again)
+	var/ss_flags = NONE
 
 	/// Which stage does this subsystem init at. Earlier stages can fire while later stages init.
 	var/init_stage = INITSTAGE_MAIN
@@ -161,13 +161,13 @@
 ///fire() seems more suitable. This is the procedure that gets called every 'wait' deciseconds.
 ///Sleeping in here prevents future fires until returned.
 /datum/controller/subsystem/proc/fire(resumed = FALSE)
-	flags |= SS_NO_FIRE
+	ss_flags |= SS_NO_FIRE
 	CRASH("Subsystem [src]([type]) does not fire() but did not set the SS_NO_FIRE flag. Please add the SS_NO_FIRE flag to any subsystem that doesn't fire so it doesn't get added to the processing list and waste cpu.")
 
 /datum/controller/subsystem/Destroy()
 	dequeue()
 	can_fire = 0
-	flags |= SS_NO_FIRE
+	ss_flags |= SS_NO_FIRE
 	if (Master)
 		Master.subsystems -= src
 	return ..()
@@ -177,7 +177,7 @@
  *  reset_time (bool) - Ignore things that would normally alter the next fire, like tick_overrun, and last_fire. (also resets postpone)
  */
 /datum/controller/subsystem/proc/update_nextfire(reset_time = FALSE)
-	var/queue_node_flags = flags
+	var/queue_node_flags = ss_flags
 
 	if (reset_time)
 		postponed_fires = 0
@@ -202,14 +202,14 @@
 /// (this lets us sort our run order correctly without having to re-sort the entire already sorted list)
 /datum/controller/subsystem/proc/enqueue()
 	var/SS_priority = priority
-	var/SS_flags = flags
+	var/SS_flags = ss_flags
 	var/datum/controller/subsystem/queue_node
 	var/queue_node_priority
 	var/queue_node_flags
 
 	for (queue_node = Master.queue_head; queue_node; queue_node = queue_node.queue_next)
 		queue_node_priority = queue_node.queued_priority
-		queue_node_flags = queue_node.flags
+		queue_node_flags = queue_node.ss_flags
 
 		if (queue_node_flags & (SS_TICKER|SS_BACKGROUND) == SS_TICKER)
 			if ((SS_flags & (SS_TICKER|SS_BACKGROUND)) != SS_TICKER)
@@ -290,7 +290,7 @@
 	return SS_INIT_NONE
 
 /datum/controller/subsystem/stat_entry(msg)
-	if(can_fire && !(SS_NO_FIRE & flags) && init_stage <= Master.init_stage_completed)
+	if(can_fire && !(SS_NO_FIRE & ss_flags) && init_stage <= Master.init_stage_completed)
 		msg = "[round(cost,1)]ms|[round(tick_usage,1)]%([round(tick_overrun,1)]%)|[round(ticks,0.1)] [msg]"
 	else
 		msg = "OFFLINE\t[msg]"
diff --git a/code/controllers/subsystem/achievements.dm b/code/controllers/subsystem/achievements.dm
index 56a85284cd4..9548de2ce60 100644
--- a/code/controllers/subsystem/achievements.dm
+++ b/code/controllers/subsystem/achievements.dm
@@ -1,6 +1,6 @@
 SUBSYSTEM_DEF(achievements)
 	name = "Achievements"
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 	var/achievements_enabled = FALSE
 
 	///List of achievements
diff --git a/code/controllers/subsystem/admin_verbs.dm b/code/controllers/subsystem/admin_verbs.dm
index 732508f0f8a..9891f13a4cf 100644
--- a/code/controllers/subsystem/admin_verbs.dm
+++ b/code/controllers/subsystem/admin_verbs.dm
@@ -2,7 +2,7 @@ GENERAL_PROTECT_DATUM(/datum/controller/subsystem/admin_verbs)
 
 SUBSYSTEM_DEF(admin_verbs)
 	name = "Admin Verbs"
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 	init_stage = INITSTAGE_EARLY
 	/// A list of all admin verbs indexed by their type.
 	var/list/datum/admin_verb/admin_verbs_by_type = list()
diff --git a/code/controllers/subsystem/ai_controllers.dm b/code/controllers/subsystem/ai_controllers.dm
index 95abc7e8da3..4102806be67 100644
--- a/code/controllers/subsystem/ai_controllers.dm
+++ b/code/controllers/subsystem/ai_controllers.dm
@@ -1,7 +1,7 @@
 /// The subsystem used to tick [/datum/ai_controllers] instances. Handling the re-checking of plans.
 SUBSYSTEM_DEF(ai_controllers)
 	name = "AI Controller Ticker"
-	flags = SS_POST_FIRE_TIMING|SS_BACKGROUND
+	ss_flags = SS_POST_FIRE_TIMING|SS_BACKGROUND
 	priority = FIRE_PRIORITY_NPC
 	dependencies = list(
 		/datum/controller/subsystem/movement/ai_movement,
diff --git a/code/controllers/subsystem/ai_idle_controllers.dm b/code/controllers/subsystem/ai_idle_controllers.dm
index 19fcad9c50e..94b43207f82 100644
--- a/code/controllers/subsystem/ai_idle_controllers.dm
+++ b/code/controllers/subsystem/ai_idle_controllers.dm
@@ -1,6 +1,6 @@
 AI_CONTROLLER_SUBSYSTEM_DEF(ai_idle_controllers)
 	name = "AI Idle Controllers"
-	flags = SS_POST_FIRE_TIMING | SS_BACKGROUND
+	ss_flags = SS_POST_FIRE_TIMING | SS_BACKGROUND
 	priority = FIRE_PRIORITY_IDLE_NPC
 	dependencies = list(
 		/datum/controller/subsystem/ai_controllers,
diff --git a/code/controllers/subsystem/air.dm b/code/controllers/subsystem/air.dm
index b991b73918d..b75d9e813e3 100644
--- a/code/controllers/subsystem/air.dm
+++ b/code/controllers/subsystem/air.dm
@@ -6,7 +6,7 @@ SUBSYSTEM_DEF(air)
 	)
 	priority = FIRE_PRIORITY_AIR
 	wait = 0.5 SECONDS
-	flags = SS_BACKGROUND
+	ss_flags = SS_BACKGROUND
 	runlevels = RUNLEVEL_GAME | RUNLEVEL_POSTGAME
 
 	var/cached_cost = 0
diff --git a/code/controllers/subsystem/ambience.dm b/code/controllers/subsystem/ambience.dm
index 88db3ffcc33..79f5e7dbd1a 100644
--- a/code/controllers/subsystem/ambience.dm
+++ b/code/controllers/subsystem/ambience.dm
@@ -1,7 +1,7 @@
 /// The subsystem used to play ambience to users every now and then, makes them real excited.
 SUBSYSTEM_DEF(ambience)
 	name = "Ambience"
-	flags = SS_BACKGROUND|SS_NO_INIT
+	ss_flags = SS_BACKGROUND|SS_NO_INIT
 	priority = FIRE_PRIORITY_AMBIENCE
 	runlevels = RUNLEVEL_GAME | RUNLEVEL_POSTGAME
 	wait = 1 SECONDS
diff --git a/code/controllers/subsystem/area_contents.dm b/code/controllers/subsystem/area_contents.dm
index 830c6857561..ae33933a4b9 100644
--- a/code/controllers/subsystem/area_contents.dm
+++ b/code/controllers/subsystem/area_contents.dm
@@ -8,7 +8,7 @@
  */
 SUBSYSTEM_DEF(area_contents)
 	name = "Area Contents"
-	flags = SS_NO_INIT
+	ss_flags = SS_NO_INIT
 	runlevels = RUNLEVEL_LOBBY|RUNLEVELS_DEFAULT
 	var/list/currentrun
 	var/list/area/marked_for_clearing = list()
diff --git a/code/controllers/subsystem/asset_loading.dm b/code/controllers/subsystem/asset_loading.dm
index 8bafe88ffbc..d591475c880 100644
--- a/code/controllers/subsystem/asset_loading.dm
+++ b/code/controllers/subsystem/asset_loading.dm
@@ -4,7 +4,7 @@
 SUBSYSTEM_DEF(asset_loading)
 	name = "Asset Loading"
 	priority = FIRE_PRIORITY_ASSETS
-	flags = SS_NO_INIT
+	ss_flags = SS_NO_INIT
 	runlevels = RUNLEVEL_LOBBY|RUNLEVELS_DEFAULT
 	var/list/datum/asset/generate_queue = list()
 	var/assets_generating = 0
diff --git a/code/controllers/subsystem/assets.dm b/code/controllers/subsystem/assets.dm
index e3b03c01222..dad696c002a 100644
--- a/code/controllers/subsystem/assets.dm
+++ b/code/controllers/subsystem/assets.dm
@@ -5,7 +5,7 @@ SUBSYSTEM_DEF(assets)
 		/datum/controller/subsystem/persistent_paintings,
 		/datum/controller/subsystem/greyscale_previews,
 	)
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 	var/list/datum/asset_cache_item/cache = list()
 	var/list/preload = list()
 	var/datum/asset_transport/transport = new()
diff --git a/code/controllers/subsystem/atoms.dm b/code/controllers/subsystem/atoms.dm
index 0ea51fe9624..80e649d7504 100644
--- a/code/controllers/subsystem/atoms.dm
+++ b/code/controllers/subsystem/atoms.dm
@@ -6,7 +6,7 @@ SUBSYSTEM_DEF(atoms)
 		/datum/controller/subsystem/mapping,
 		/datum/controller/subsystem/job,
 	)
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 
 	/// A stack of list(source, desired initialized state)
 	/// We read the source of init changes from the last entry, and assert that all changes will come with a reset
diff --git a/code/controllers/subsystem/augury.dm b/code/controllers/subsystem/augury.dm
index e686e5cdb62..681ac744c15 100644
--- a/code/controllers/subsystem/augury.dm
+++ b/code/controllers/subsystem/augury.dm
@@ -1,6 +1,6 @@
 SUBSYSTEM_DEF(augury)
 	name = "Augury"
-	flags = SS_NO_INIT
+	ss_flags = SS_NO_INIT
 	runlevels = RUNLEVEL_GAME | RUNLEVEL_POSTGAME
 
 	var/list/watchers = list()
diff --git a/code/controllers/subsystem/ban_cache.dm b/code/controllers/subsystem/ban_cache.dm
index 21e1a92a7ed..1e4c710031b 100644
--- a/code/controllers/subsystem/ban_cache.dm
+++ b/code/controllers/subsystem/ban_cache.dm
@@ -5,7 +5,7 @@ SUBSYSTEM_DEF(ban_cache)
 /datum/controller/subsystem/ban_cache
 	name = "Ban Cache"
 	init_stage = INITSTAGE_LAST
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 	var/query_started = FALSE
 
 /datum/controller/subsystem/ban_cache/Initialize()
diff --git a/code/controllers/subsystem/blood_drying.dm b/code/controllers/subsystem/blood_drying.dm
index 79202cb8d8c..ec8d9d174e0 100644
--- a/code/controllers/subsystem/blood_drying.dm
+++ b/code/controllers/subsystem/blood_drying.dm
@@ -5,7 +5,7 @@
  */
 PROCESSING_SUBSYSTEM_DEF(blood_drying)
 	name = "Blood Drying"
-	flags = SS_NO_INIT | SS_BACKGROUND
+	ss_flags = SS_NO_INIT | SS_BACKGROUND
 	priority = FIRE_PRIORITY_BLOOD_DRYING
 	runlevels = RUNLEVEL_GAME
 	wait = 4 SECONDS
diff --git a/code/controllers/subsystem/cameras.dm b/code/controllers/subsystem/cameras.dm
index 62e8af1c973..d6f7866b808 100644
--- a/code/controllers/subsystem/cameras.dm
+++ b/code/controllers/subsystem/cameras.dm
@@ -1,7 +1,7 @@
 /// Manages the security cameras and camera chunks
 SUBSYSTEM_DEF(cameras)
 	name = "Cameras"
-	flags = SS_BACKGROUND
+	ss_flags = SS_BACKGROUND
 	priority = FIRE_PRIORITY_CAMERAS
 	runlevels = RUNLEVEL_GAME | RUNLEVEL_POSTGAME
 	wait = 2 MINUTES
diff --git a/code/controllers/subsystem/chat.dm b/code/controllers/subsystem/chat.dm
index d2303074077..4864e9aec8a 100644
--- a/code/controllers/subsystem/chat.dm
+++ b/code/controllers/subsystem/chat.dm
@@ -5,7 +5,7 @@
 
 SUBSYSTEM_DEF(chat)
 	name = "Chat"
-	flags = SS_TICKER|SS_NO_INIT
+	ss_flags = SS_TICKER|SS_NO_INIT
 	wait = 1
 	priority = FIRE_PRIORITY_CHAT
 	init_stage = INITSTAGE_LAST
diff --git a/code/controllers/subsystem/dbcore.dm b/code/controllers/subsystem/dbcore.dm
index 17b2bf737dd..b68454a5acc 100644
--- a/code/controllers/subsystem/dbcore.dm
+++ b/code/controllers/subsystem/dbcore.dm
@@ -1,7 +1,7 @@
 #define SHUTDOWN_QUERY_TIMELIMIT (1 MINUTES)
 SUBSYSTEM_DEF(dbcore)
 	name = "Database"
-	flags = SS_TICKER
+	ss_flags = SS_TICKER
 	init_stage = INITSTAGE_FIRST
 	wait = 10 // Not seconds because we're running on SS_TICKER
 	runlevels = RUNLEVEL_LOBBY|RUNLEVELS_DEFAULT
diff --git a/code/controllers/subsystem/dcs.dm b/code/controllers/subsystem/dcs.dm
index a3dcc26af54..e65c820e944 100644
--- a/code/controllers/subsystem/dcs.dm
+++ b/code/controllers/subsystem/dcs.dm
@@ -1,6 +1,6 @@
 PROCESSING_SUBSYSTEM_DEF(dcs)
 	name = "Datum Component System"
-	flags = SS_NO_INIT
+	ss_flags = SS_NO_INIT
 	wait = 1 SECONDS
 
 	var/list/elements_by_type = list()
diff --git a/code/controllers/subsystem/disease.dm b/code/controllers/subsystem/disease.dm
index bfa6fd66b7d..843148d6f43 100644
--- a/code/controllers/subsystem/disease.dm
+++ b/code/controllers/subsystem/disease.dm
@@ -1,6 +1,6 @@
 SUBSYSTEM_DEF(disease)
 	name = "Disease"
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 
 	var/list/active_diseases = list() //List of Active disease in all mobs; purely for quick referencing.
 	var/list/diseases
diff --git a/code/controllers/subsystem/dynamic/dynamic.dm b/code/controllers/subsystem/dynamic/dynamic.dm
index bdebecb717d..8d614412ae8 100644
--- a/code/controllers/subsystem/dynamic/dynamic.dm
+++ b/code/controllers/subsystem/dynamic/dynamic.dm
@@ -1,6 +1,6 @@
 SUBSYSTEM_DEF(dynamic)
 	name = "Dynamic"
-	flags = SS_NO_INIT
+	ss_flags = SS_NO_INIT
 	wait = 5 MINUTES
 
 	// These vars just exist for admins interfacing with dynamic
diff --git a/code/controllers/subsystem/early_assets.dm b/code/controllers/subsystem/early_assets.dm
index df155a4db10..a480fbc49a9 100644
--- a/code/controllers/subsystem/early_assets.dm
+++ b/code/controllers/subsystem/early_assets.dm
@@ -14,7 +14,7 @@ SUBSYSTEM_DEF(early_assets)
 		/datum/controller/subsystem/atoms,
 	)
 	init_stage = INITSTAGE_EARLY
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 
 /datum/controller/subsystem/early_assets/Initialize()
 	var/init_source = "early assets"
diff --git a/code/controllers/subsystem/explosions.dm b/code/controllers/subsystem/explosions.dm
index c01fe4f718f..f5c733c0fd6 100644
--- a/code/controllers/subsystem/explosions.dm
+++ b/code/controllers/subsystem/explosions.dm
@@ -9,7 +9,7 @@ SUBSYSTEM_DEF(explosions)
 	name = "Explosions"
 	priority = FIRE_PRIORITY_EXPLOSIONS
 	wait = 1
-	flags = SS_TICKER|SS_NO_INIT
+	ss_flags = SS_TICKER|SS_NO_INIT
 	runlevels = RUNLEVEL_GAME | RUNLEVEL_POSTGAME
 
 	var/cost_lowturf = 0
diff --git a/code/controllers/subsystem/fluids.dm b/code/controllers/subsystem/fluids.dm
index 6b68ae71722..9ceec065086 100644
--- a/code/controllers/subsystem/fluids.dm
+++ b/code/controllers/subsystem/fluids.dm
@@ -20,7 +20,7 @@
 SUBSYSTEM_DEF(fluids)
 	name = "Fluid"
 	wait = 0 // Will be autoset to whatever makes the most sense given the spread and effect waits.
-	flags = SS_KEEP_TIMING
+	ss_flags = SS_KEEP_TIMING
 	runlevels = RUNLEVEL_GAME|RUNLEVEL_POSTGAME
 	priority = FIRE_PRIORITY_FLUIDS
 
diff --git a/code/controllers/subsystem/garbage.dm b/code/controllers/subsystem/garbage.dm
index bb1475a4f50..ae01679b094 100644
--- a/code/controllers/subsystem/garbage.dm
+++ b/code/controllers/subsystem/garbage.dm
@@ -25,7 +25,7 @@ SUBSYSTEM_DEF(garbage)
 	name = "Garbage"
 	priority = FIRE_PRIORITY_GARBAGE
 	wait = 2 SECONDS
-	flags = SS_POST_FIRE_TIMING|SS_BACKGROUND|SS_NO_INIT
+	ss_flags = SS_POST_FIRE_TIMING|SS_BACKGROUND|SS_NO_INIT
 	runlevels = RUNLEVELS_DEFAULT | RUNLEVEL_LOBBY
 	init_stage = INITSTAGE_FIRST
 
diff --git a/code/controllers/subsystem/greyscale_previews.dm b/code/controllers/subsystem/greyscale_previews.dm
index 9a63cb6b2de..79bc1fa1fe9 100644
--- a/code/controllers/subsystem/greyscale_previews.dm
+++ b/code/controllers/subsystem/greyscale_previews.dm
@@ -1,6 +1,6 @@
 SUBSYSTEM_DEF(greyscale_previews)
 	name = "Greyscale Previews"
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 	init_stage = INITSTAGE_EARLY
 	dependencies = list(
 		/datum/controller/subsystem/processing/greyscale,
diff --git a/code/controllers/subsystem/icon_smooth.dm b/code/controllers/subsystem/icon_smooth.dm
index 77a2c1670ae..7fb7f5c6199 100644
--- a/code/controllers/subsystem/icon_smooth.dm
+++ b/code/controllers/subsystem/icon_smooth.dm
@@ -5,7 +5,7 @@ SUBSYSTEM_DEF(icon_smooth)
 	)
 	wait = 1
 	priority = FIRE_PRIORITY_SMOOTHING
-	flags = SS_TICKER
+	ss_flags = SS_TICKER
 
 	///Blueprints assemble an image of what pipes/manifolds/wires look like on initialization, and thus should be taken after everything's been smoothed
 	var/list/blueprint_queue = list()
diff --git a/code/controllers/subsystem/init_profiler.dm b/code/controllers/subsystem/init_profiler.dm
index dcb163e596a..a27c1a5bf39 100644
--- a/code/controllers/subsystem/init_profiler.dm
+++ b/code/controllers/subsystem/init_profiler.dm
@@ -5,7 +5,7 @@
 SUBSYSTEM_DEF(init_profiler)
 	name = "Init Profiler"
 	init_stage = INITSTAGE_LAST
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 
 /datum/controller/subsystem/init_profiler/Initialize()
 	if(CONFIG_GET(flag/auto_profile))
diff --git a/code/controllers/subsystem/input.dm b/code/controllers/subsystem/input.dm
index 11b75be8af7..dff1edad054 100644
--- a/code/controllers/subsystem/input.dm
+++ b/code/controllers/subsystem/input.dm
@@ -1,7 +1,7 @@
 VERB_MANAGER_SUBSYSTEM_DEF(input)
 	name = "Input"
 	init_stage = INITSTAGE_EARLY
-	flags = SS_TICKER
+	ss_flags = SS_TICKER
 	priority = FIRE_PRIORITY_INPUT
 	runlevels = RUNLEVELS_DEFAULT | RUNLEVEL_LOBBY
 
diff --git a/code/controllers/subsystem/ipintel.dm b/code/controllers/subsystem/ipintel.dm
index 6ba87c02780..e3e33d1d79e 100644
--- a/code/controllers/subsystem/ipintel.dm
+++ b/code/controllers/subsystem/ipintel.dm
@@ -1,6 +1,6 @@
 SUBSYSTEM_DEF(ipintel)
 	name = "XKeyScore"
-	flags = SS_NO_INIT|SS_NO_FIRE
+	ss_flags = SS_NO_INIT|SS_NO_FIRE
 	/// The threshold for probability to be considered a VPN and/or bad IP
 	var/probability_threshold
 
diff --git a/code/controllers/subsystem/job.dm b/code/controllers/subsystem/job.dm
index c37577d24bd..9b23ad6528a 100644
--- a/code/controllers/subsystem/job.dm
+++ b/code/controllers/subsystem/job.dm
@@ -3,7 +3,7 @@ SUBSYSTEM_DEF(job)
 	dependencies = list(
 		/datum/controller/subsystem/processing/station,
 	)
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 
 	/// List of all jobs.
 	var/list/datum/job/all_occupations = list()
diff --git a/code/controllers/subsystem/lag_switch.dm b/code/controllers/subsystem/lag_switch.dm
index 291e80fe18f..70979b40816 100644
--- a/code/controllers/subsystem/lag_switch.dm
+++ b/code/controllers/subsystem/lag_switch.dm
@@ -1,7 +1,7 @@
 /// The subsystem for controlling drastic performance enhancements aimed at reducing server load for a smoother albeit slightly duller gaming experience
 SUBSYSTEM_DEF(lag_switch)
 	name = "Lag Switch"
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 
 	/// If the lag switch measures should attempt to trigger automatically, TRUE if a config value exists
 	var/auto_switch = FALSE
diff --git a/code/controllers/subsystem/library.dm b/code/controllers/subsystem/library.dm
index 87b64f1af87..a368a390304 100644
--- a/code/controllers/subsystem/library.dm
+++ b/code/controllers/subsystem/library.dm
@@ -5,7 +5,7 @@ SUBSYSTEM_DEF(library)
 		/datum/controller/subsystem/atoms,
 		/datum/controller/subsystem/mapping,
 	)
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 
 	/// List of bookselves to prefill with books
 	var/list/shelves_to_load = list()
diff --git a/code/controllers/subsystem/lighting.dm b/code/controllers/subsystem/lighting.dm
index 2bff25b00a5..4717e7dcf8c 100644
--- a/code/controllers/subsystem/lighting.dm
+++ b/code/controllers/subsystem/lighting.dm
@@ -5,7 +5,7 @@ SUBSYSTEM_DEF(lighting)
 		/datum/controller/subsystem/mapping,
 	)
 	wait = 2
-	flags = SS_TICKER
+	ss_flags = SS_TICKER
 	var/static/list/sources_queue = list() // List of lighting sources queued for update.
 	var/static/list/corners_queue = list() // List of lighting corners queued for update.
 	var/static/list/objects_queue = list() // List of lighting objects queued for update.
diff --git a/code/controllers/subsystem/machines.dm b/code/controllers/subsystem/machines.dm
index e3e0b0357a0..8e19623ad29 100644
--- a/code/controllers/subsystem/machines.dm
+++ b/code/controllers/subsystem/machines.dm
@@ -3,7 +3,7 @@ SUBSYSTEM_DEF(machines)
 	dependencies = list(
 		/datum/controller/subsystem/atoms,
 	)
-	flags = SS_KEEP_TIMING
+	ss_flags = SS_KEEP_TIMING
 	wait = 2 SECONDS
 
 	/// Assosciative list of all machines that exist.
diff --git a/code/controllers/subsystem/map_vote.dm b/code/controllers/subsystem/map_vote.dm
index 6b0495613ea..4229ee82737 100644
--- a/code/controllers/subsystem/map_vote.dm
+++ b/code/controllers/subsystem/map_vote.dm
@@ -2,7 +2,7 @@
 
 SUBSYSTEM_DEF(map_vote)
 	name = "Map Vote"
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 
 	/// Has an admin specifically set a map.
 	var/admin_override = FALSE
diff --git a/code/controllers/subsystem/mapping.dm b/code/controllers/subsystem/mapping.dm
index caec055f21f..e83341269cd 100644
--- a/code/controllers/subsystem/mapping.dm
+++ b/code/controllers/subsystem/mapping.dm
@@ -351,7 +351,7 @@ Used by the AI doomsday and the self-destruct nuke.
 
 
 /datum/controller/subsystem/mapping/Recover()
-	flags |= SS_NO_INIT
+	ss_flags |= SS_NO_INIT
 	initialized = SSmapping.initialized
 	map_templates = SSmapping.map_templates
 	ruins_templates = SSmapping.ruins_templates
diff --git a/code/controllers/subsystem/market.dm b/code/controllers/subsystem/market.dm
index 8d165bee25d..62631201ba4 100644
--- a/code/controllers/subsystem/market.dm
+++ b/code/controllers/subsystem/market.dm
@@ -1,6 +1,6 @@
 SUBSYSTEM_DEF(market)
 	name = "Market"
-	flags = SS_BACKGROUND
+	ss_flags = SS_BACKGROUND
 	dependencies = list(
 		/datum/controller/subsystem/atoms,
 	)
diff --git a/code/controllers/subsystem/materials.dm b/code/controllers/subsystem/materials.dm
index 62d72a9d18c..0bbeb16fbe3 100644
--- a/code/controllers/subsystem/materials.dm
+++ b/code/controllers/subsystem/materials.dm
@@ -6,7 +6,7 @@ These materials call on_applied() on whatever item they are applied to, common e
 */
 SUBSYSTEM_DEF(materials)
 	name = "Materials"
-	flags = SS_NO_FIRE | SS_NO_INIT
+	ss_flags = SS_NO_FIRE | SS_NO_INIT
 	/// Dictionary of material.id || material ref
 	var/list/materials
 	/// Flat list of materials
diff --git a/code/controllers/subsystem/minor_mapping.dm b/code/controllers/subsystem/minor_mapping.dm
index aca5845a14d..5f59bf8d597 100644
--- a/code/controllers/subsystem/minor_mapping.dm
+++ b/code/controllers/subsystem/minor_mapping.dm
@@ -6,7 +6,7 @@ SUBSYSTEM_DEF(minor_mapping)
 		/datum/controller/subsystem/mapping,
 		/datum/controller/subsystem/atoms,
 	)
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 	///a list of vermin we pick from to spawn.
 	var/list/vermin_chances = list(
 		/mob/living/basic/mouse = 72,
diff --git a/code/controllers/subsystem/mobs.dm b/code/controllers/subsystem/mobs.dm
index 7f500e08289..d0078891c22 100644
--- a/code/controllers/subsystem/mobs.dm
+++ b/code/controllers/subsystem/mobs.dm
@@ -1,7 +1,7 @@
 SUBSYSTEM_DEF(mobs)
 	name = "Mobs"
 	priority = FIRE_PRIORITY_MOBS
-	flags = SS_KEEP_TIMING | SS_NO_INIT
+	ss_flags = SS_KEEP_TIMING | SS_NO_INIT
 	runlevels = RUNLEVEL_GAME | RUNLEVEL_POSTGAME
 	wait = 2 SECONDS
 
diff --git a/code/controllers/subsystem/moods.dm b/code/controllers/subsystem/moods.dm
index 20111747bdb..5f2c3151ad2 100644
--- a/code/controllers/subsystem/moods.dm
+++ b/code/controllers/subsystem/moods.dm
@@ -1,5 +1,5 @@
 PROCESSING_SUBSYSTEM_DEF(mood)
 	name = "Mood"
-	flags = SS_NO_INIT | SS_BACKGROUND
+	ss_flags = SS_NO_INIT | SS_BACKGROUND
 	priority = 20
 	wait = 1 SECONDS
diff --git a/code/controllers/subsystem/mouse_entered.dm b/code/controllers/subsystem/mouse_entered.dm
index 6dc8d995a52..baf60e33024 100644
--- a/code/controllers/subsystem/mouse_entered.dm
+++ b/code/controllers/subsystem/mouse_entered.dm
@@ -2,7 +2,7 @@
 SUBSYSTEM_DEF(mouse_entered)
 	name = "MouseEntered"
 	wait = 1
-	flags = SS_NO_INIT | SS_TICKER
+	ss_flags = SS_NO_INIT | SS_TICKER
 	priority = FIRE_PRIORITY_MOUSE_ENTERED
 	runlevels = RUNLEVELS_DEFAULT | RUNLEVEL_LOBBY
 
diff --git a/code/controllers/subsystem/movement/ai_movement.dm b/code/controllers/subsystem/movement/ai_movement.dm
index 8703fbfdfc6..9c96ea6a22b 100644
--- a/code/controllers/subsystem/movement/ai_movement.dm
+++ b/code/controllers/subsystem/movement/ai_movement.dm
@@ -1,7 +1,7 @@
 /// The subsystem used to tick [/datum/ai_movement] instances. Handling the movement of individual AI instances
 MOVEMENT_SUBSYSTEM_DEF(ai_movement)
 	name = "AI movement"
-	flags = SS_BACKGROUND|SS_TICKER
+	ss_flags = SS_BACKGROUND|SS_TICKER
 	priority = FIRE_PRIORITY_NPC_MOVEMENT
 	runlevels = RUNLEVEL_GAME | RUNLEVEL_POSTGAME
 
diff --git a/code/controllers/subsystem/movement/cliff_falling.dm b/code/controllers/subsystem/movement/cliff_falling.dm
index b3d7f114dfb..d9e56eb2a02 100644
--- a/code/controllers/subsystem/movement/cliff_falling.dm
+++ b/code/controllers/subsystem/movement/cliff_falling.dm
@@ -2,7 +2,7 @@
 MOVEMENT_SUBSYSTEM_DEF(cliff_falling)
 	name = "Cliff Falling"
 	priority = FIRE_PRIORITY_CLIFF_FALLING
-	flags = SS_NO_INIT|SS_TICKER
+	ss_flags = SS_NO_INIT|SS_TICKER
 	runlevels = RUNLEVEL_GAME | RUNLEVEL_POSTGAME
 
 	/// Who are currently falling and with which movemanager?
diff --git a/code/controllers/subsystem/movement/hyperspace_drift.dm b/code/controllers/subsystem/movement/hyperspace_drift.dm
index bd1ac67a6f0..66710bd02f3 100644
--- a/code/controllers/subsystem/movement/hyperspace_drift.dm
+++ b/code/controllers/subsystem/movement/hyperspace_drift.dm
@@ -2,5 +2,5 @@
 MOVEMENT_SUBSYSTEM_DEF(hyperspace_drift)
 	name = "Hyperspace Drift"
 	priority = FIRE_PRIORITY_HYPERSPACE_DRIFT
-	flags = SS_NO_INIT|SS_TICKER
+	ss_flags = SS_NO_INIT|SS_TICKER
 	runlevels = RUNLEVEL_GAME | RUNLEVEL_POSTGAME
diff --git a/code/controllers/subsystem/movement/movement.dm b/code/controllers/subsystem/movement/movement.dm
index 2b0463db790..052b82991e3 100644
--- a/code/controllers/subsystem/movement/movement.dm
+++ b/code/controllers/subsystem/movement/movement.dm
@@ -1,6 +1,6 @@
 SUBSYSTEM_DEF(movement)
 	name = "Movement Loops"
-	flags = SS_NO_INIT|SS_TICKER
+	ss_flags = SS_NO_INIT|SS_TICKER
 	wait = 1 //Fire each tick
 	/*
 		A breif aside about the bucketing system here
diff --git a/code/controllers/subsystem/movement/newtonian_movement.dm b/code/controllers/subsystem/movement/newtonian_movement.dm
index e4143669678..d88a7d72f57 100644
--- a/code/controllers/subsystem/movement/newtonian_movement.dm
+++ b/code/controllers/subsystem/movement/newtonian_movement.dm
@@ -1,7 +1,7 @@
 /// The subsystem is intended to tick things related to space/newtonian movement, such as constant sources of inertia
 MOVEMENT_SUBSYSTEM_DEF(newtonian_movement)
 	name = "Newtonian Movement"
-	flags = SS_NO_INIT|SS_TICKER
+	ss_flags = SS_NO_INIT|SS_TICKER
 	runlevels = RUNLEVEL_GAME | RUNLEVEL_POSTGAME
 
 	var/stat_tag = "P" //Used for logging
diff --git a/code/controllers/subsystem/networks/bitrunning.dm b/code/controllers/subsystem/networks/bitrunning.dm
index 6f6d68a0b05..1bb8eb49e4d 100644
--- a/code/controllers/subsystem/networks/bitrunning.dm
+++ b/code/controllers/subsystem/networks/bitrunning.dm
@@ -2,7 +2,7 @@
 
 SUBSYSTEM_DEF(bitrunning)
 	name = "Bitrunning"
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 
 	var/list/all_domains = list()
 
diff --git a/code/controllers/subsystem/networks/circuit_component.dm b/code/controllers/subsystem/networks/circuit_component.dm
index bae302ed9d0..54ece202903 100644
--- a/code/controllers/subsystem/networks/circuit_component.dm
+++ b/code/controllers/subsystem/networks/circuit_component.dm
@@ -2,7 +2,7 @@ SUBSYSTEM_DEF(circuit_component)
 	name = "Circuit Components"
 	wait = 0.1 SECONDS
 	priority = FIRE_PRIORITY_DEFAULT
-	flags = SS_NO_INIT
+	ss_flags = SS_NO_INIT
 
 	var/list/callbacks_to_invoke = list()
 	var/list/currentrun = list()
diff --git a/code/controllers/subsystem/networks/id_access.dm b/code/controllers/subsystem/networks/id_access.dm
index 889c59fbf5b..482bd5e119f 100644
--- a/code/controllers/subsystem/networks/id_access.dm
+++ b/code/controllers/subsystem/networks/id_access.dm
@@ -3,7 +3,7 @@
  */
 SUBSYSTEM_DEF(id_access)
 	name = "IDs and Access"
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 
 	/// Dictionary of access flags. Keys are accesses. Values are their associated bitflags.
 	var/list/flags_by_access = list()
diff --git a/code/controllers/subsystem/networks/radio.dm b/code/controllers/subsystem/networks/radio.dm
index 6d880cedeb3..8ddc9ae955c 100644
--- a/code/controllers/subsystem/networks/radio.dm
+++ b/code/controllers/subsystem/networks/radio.dm
@@ -1,6 +1,6 @@
 SUBSYSTEM_DEF(radio)
 	name = "Radio"
-	flags = SS_NO_FIRE|SS_NO_INIT
+	ss_flags = SS_NO_FIRE|SS_NO_INIT
 
 	var/list/datum/radio_frequency/frequencies = list()
 	var/list/saymodes = list()
diff --git a/code/controllers/subsystem/networks/wiremod_composite.dm b/code/controllers/subsystem/networks/wiremod_composite.dm
index 15b21beefa1..e099a2bfa90 100644
--- a/code/controllers/subsystem/networks/wiremod_composite.dm
+++ b/code/controllers/subsystem/networks/wiremod_composite.dm
@@ -7,7 +7,7 @@
  **/
 SUBSYSTEM_DEF(wiremod_composite)
 	name = "Wiremod Composite Templates"
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 	/// The templates created and stored
 	var/list/templates = list()
 
diff --git a/code/controllers/subsystem/npcpool.dm b/code/controllers/subsystem/npcpool.dm
index 6fbfdadf682..a03e7c9872b 100644
--- a/code/controllers/subsystem/npcpool.dm
+++ b/code/controllers/subsystem/npcpool.dm
@@ -1,6 +1,6 @@
 SUBSYSTEM_DEF(npcpool)
 	name = "NPC Pool"
-	flags = SS_POST_FIRE_TIMING|SS_NO_INIT|SS_BACKGROUND
+	ss_flags = SS_POST_FIRE_TIMING|SS_NO_INIT|SS_BACKGROUND
 	priority = FIRE_PRIORITY_NPC
 	runlevels = RUNLEVEL_GAME | RUNLEVEL_POSTGAME
 
diff --git a/code/controllers/subsystem/overlays.dm b/code/controllers/subsystem/overlays.dm
index 96041edd423..dda905504d8 100644
--- a/code/controllers/subsystem/overlays.dm
+++ b/code/controllers/subsystem/overlays.dm
@@ -1,6 +1,6 @@
 SUBSYSTEM_DEF(overlays)
 	name = "Overlay"
-	flags = SS_NO_FIRE|SS_NO_INIT
+	ss_flags = SS_NO_FIRE|SS_NO_INIT
 	var/list/stats
 
 /datum/controller/subsystem/overlays/PreInit()
diff --git a/code/controllers/subsystem/pai.dm b/code/controllers/subsystem/pai.dm
index 4abc752ea81..b2db11c4a51 100644
--- a/code/controllers/subsystem/pai.dm
+++ b/code/controllers/subsystem/pai.dm
@@ -1,6 +1,6 @@
 SUBSYSTEM_DEF(pai)
 	name = "pAI"
-	flags = SS_NO_INIT|SS_NO_FIRE
+	ss_flags = SS_NO_INIT|SS_NO_FIRE
 
 	/// List of pAI candidates, including those not submitted.
 	var/list/candidates = list()
diff --git a/code/controllers/subsystem/parallax.dm b/code/controllers/subsystem/parallax.dm
index e7ccfff74c1..1b509f8d757 100644
--- a/code/controllers/subsystem/parallax.dm
+++ b/code/controllers/subsystem/parallax.dm
@@ -4,7 +4,7 @@
 SUBSYSTEM_DEF(parallax)
 	name = "Parallax"
 	wait = 2
-	flags = SS_POST_FIRE_TIMING | SS_BACKGROUND | SS_NO_INIT
+	ss_flags = SS_POST_FIRE_TIMING | SS_BACKGROUND | SS_NO_INIT
 	priority = FIRE_PRIORITY_PARALLAX
 	runlevels = RUNLEVEL_LOBBY | RUNLEVELS_DEFAULT
 	var/list/currentrun
diff --git a/code/controllers/subsystem/persistence/_persistence.dm b/code/controllers/subsystem/persistence/_persistence.dm
index cb312ba29c2..405f8129eea 100644
--- a/code/controllers/subsystem/persistence/_persistence.dm
+++ b/code/controllers/subsystem/persistence/_persistence.dm
@@ -7,7 +7,7 @@ SUBSYSTEM_DEF(persistence)
 		/datum/controller/subsystem/mapping,
 		/datum/controller/subsystem/atoms,
 	)
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 
 	///instantiated wall engraving components
 	var/list/wall_engravings = list()
diff --git a/code/controllers/subsystem/persistent_paintings.dm b/code/controllers/subsystem/persistent_paintings.dm
index e9a057432fe..6d9aabf9989 100644
--- a/code/controllers/subsystem/persistent_paintings.dm
+++ b/code/controllers/subsystem/persistent_paintings.dm
@@ -120,7 +120,7 @@
 
 SUBSYSTEM_DEF(persistent_paintings)
 	name = "Persistent Paintings"
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 	dependencies = list(
 		/datum/controller/subsystem/persistence,
 	)
diff --git a/code/controllers/subsystem/ping.dm b/code/controllers/subsystem/ping.dm
index 22a64c2802a..0607f89162c 100644
--- a/code/controllers/subsystem/ping.dm
+++ b/code/controllers/subsystem/ping.dm
@@ -8,7 +8,7 @@ SUBSYSTEM_DEF(ping)
 	priority = FIRE_PRIORITY_PING
 	init_stage = INITSTAGE_EARLY
 	wait = 4 SECONDS
-	flags = SS_NO_INIT
+	ss_flags = SS_NO_INIT
 	runlevels = RUNLEVEL_LOBBY | RUNLEVELS_DEFAULT
 	var/list/currentrun = list()
 
diff --git a/code/controllers/subsystem/points_of_interest.dm b/code/controllers/subsystem/points_of_interest.dm
index 7bec303d66a..6844c84ecdc 100644
--- a/code/controllers/subsystem/points_of_interest.dm
+++ b/code/controllers/subsystem/points_of_interest.dm
@@ -2,7 +2,7 @@
 SUBSYSTEM_DEF(points_of_interest)
 	name = "Points of Interest"
 
-	flags = SS_NO_FIRE | SS_NO_INIT
+	ss_flags = SS_NO_FIRE | SS_NO_INIT
 
 	/// List of mob POIs. This list is automatically sorted.
 	var/list/datum/point_of_interest/mob_poi/mob_points_of_interest = list()
diff --git a/code/controllers/subsystem/polling.dm b/code/controllers/subsystem/polling.dm
index 1477fa7e7c3..b830aec53ef 100644
--- a/code/controllers/subsystem/polling.dm
+++ b/code/controllers/subsystem/polling.dm
@@ -1,6 +1,6 @@
 SUBSYSTEM_DEF(polling)
 	name = "Polling"
-	flags = SS_BACKGROUND | SS_NO_INIT
+	ss_flags = SS_BACKGROUND | SS_NO_INIT
 	wait = 1 SECONDS
 	runlevels = RUNLEVEL_GAME | RUNLEVEL_POSTGAME
 	/// List of polls currently ongoing, to be checked on next fire()
diff --git a/code/controllers/subsystem/processing/acid.dm b/code/controllers/subsystem/processing/acid.dm
index a92880f51e3..2e16efdda89 100644
--- a/code/controllers/subsystem/processing/acid.dm
+++ b/code/controllers/subsystem/processing/acid.dm
@@ -2,5 +2,5 @@
 PROCESSING_SUBSYSTEM_DEF(acid)
 	name = "Acid"
 	priority = FIRE_PRIORITY_ACID
-	flags = SS_NO_INIT|SS_BACKGROUND
+	ss_flags = SS_NO_INIT|SS_BACKGROUND
 	runlevels = RUNLEVEL_GAME | RUNLEVEL_POSTGAME
diff --git a/code/controllers/subsystem/processing/ai_basic_avoidance.dm b/code/controllers/subsystem/processing/ai_basic_avoidance.dm
index 2a3fe992f44..9fdd5d2d453 100644
--- a/code/controllers/subsystem/processing/ai_basic_avoidance.dm
+++ b/code/controllers/subsystem/processing/ai_basic_avoidance.dm
@@ -1,4 +1,4 @@
 PROCESSING_SUBSYSTEM_DEF(basic_avoidance)
 	name = "Basic Avoidance"
-	flags = SS_NO_INIT
+	ss_flags = SS_NO_INIT
 	wait = 2 SECONDS
diff --git a/code/controllers/subsystem/processing/ai_behaviors.dm b/code/controllers/subsystem/processing/ai_behaviors.dm
index 56904fb3c2f..7304c5ed362 100644
--- a/code/controllers/subsystem/processing/ai_behaviors.dm
+++ b/code/controllers/subsystem/processing/ai_behaviors.dm
@@ -1,7 +1,7 @@
 /// The subsystem used to tick [/datum/ai_behavior] instances. Handling the individual actions an AI can take like punching someone in the fucking NUTS
 PROCESSING_SUBSYSTEM_DEF(ai_behaviors)
 	name = "AI Behavior Ticker"
-	flags = SS_POST_FIRE_TIMING|SS_BACKGROUND
+	ss_flags = SS_POST_FIRE_TIMING|SS_BACKGROUND
 	priority = FIRE_PRIORITY_NPC_ACTIONS
 	runlevels = RUNLEVEL_GAME | RUNLEVEL_POSTGAME
 	dependencies = list(
diff --git a/code/controllers/subsystem/processing/ai_idle_behaviors.dm b/code/controllers/subsystem/processing/ai_idle_behaviors.dm
index c776451ab20..2b631da96f3 100644
--- a/code/controllers/subsystem/processing/ai_idle_behaviors.dm
+++ b/code/controllers/subsystem/processing/ai_idle_behaviors.dm
@@ -1,6 +1,6 @@
 PROCESSING_SUBSYSTEM_DEF(idle_ai_behaviors)
 	name = "AI Idle Behaviors"
-	flags = SS_BACKGROUND
+	ss_flags = SS_BACKGROUND
 	wait = 1.5 SECONDS
 	priority = FIRE_PRIORITY_IDLE_NPC
 	dependencies = list(
diff --git a/code/controllers/subsystem/processing/antag_hud.dm b/code/controllers/subsystem/processing/antag_hud.dm
index aaf10a5e2ec..98e439039e8 100644
--- a/code/controllers/subsystem/processing/antag_hud.dm
+++ b/code/controllers/subsystem/processing/antag_hud.dm
@@ -1,4 +1,4 @@
 PROCESSING_SUBSYSTEM_DEF(antag_hud)
 	name = "Antag HUDs"
-	flags = SS_NO_INIT
+	ss_flags = SS_NO_INIT
 	wait = 2 SECONDS
diff --git a/code/controllers/subsystem/processing/aura.dm b/code/controllers/subsystem/processing/aura.dm
index 12a7d511fb7..992a64680a3 100644
--- a/code/controllers/subsystem/processing/aura.dm
+++ b/code/controllers/subsystem/processing/aura.dm
@@ -1,5 +1,5 @@
 /// The subsystem used to tick auras ([/datum/component/aura_healing] and [/datum/component/damage_aura]).
 PROCESSING_SUBSYSTEM_DEF(aura)
 	name = "Aura"
-	flags = SS_NO_INIT | SS_BACKGROUND | SS_KEEP_TIMING
+	ss_flags = SS_NO_INIT | SS_BACKGROUND | SS_KEEP_TIMING
 	wait = 0.3 SECONDS
diff --git a/code/controllers/subsystem/processing/clock_component.dm b/code/controllers/subsystem/processing/clock_component.dm
index d07acaa6d79..13d165e90ff 100644
--- a/code/controllers/subsystem/processing/clock_component.dm
+++ b/code/controllers/subsystem/processing/clock_component.dm
@@ -1,5 +1,5 @@
 /// The subsystem used to tick [/datum/component/acid] instances.
 PROCESSING_SUBSYSTEM_DEF(clock_component)
 	name = "Clock Component"
-	flags = SS_NO_INIT|SS_BACKGROUND|SS_KEEP_TIMING
+	ss_flags = SS_NO_INIT|SS_BACKGROUND|SS_KEEP_TIMING
 	wait = COMP_CLOCK_DELAY
diff --git a/code/controllers/subsystem/processing/digital_clock.dm b/code/controllers/subsystem/processing/digital_clock.dm
index 6981e785d1c..4146a2c857f 100644
--- a/code/controllers/subsystem/processing/digital_clock.dm
+++ b/code/controllers/subsystem/processing/digital_clock.dm
@@ -1,5 +1,5 @@
 /// The subsystem used to tick digital clocks
 PROCESSING_SUBSYSTEM_DEF(digital_clock)
 	name = "Digital Clocks"
-	flags = SS_NO_INIT|SS_BACKGROUND|SS_KEEP_TIMING
+	ss_flags = SS_NO_INIT|SS_BACKGROUND|SS_KEEP_TIMING
 	wait = 1 SECONDS
diff --git a/code/controllers/subsystem/processing/fire_burning.dm b/code/controllers/subsystem/processing/fire_burning.dm
index 6cde5e3c34f..35b794b5f54 100644
--- a/code/controllers/subsystem/processing/fire_burning.dm
+++ b/code/controllers/subsystem/processing/fire_burning.dm
@@ -2,5 +2,5 @@
 PROCESSING_SUBSYSTEM_DEF(burning)
 	name = "Burning"
 	priority = FIRE_PRIORITY_BURNING
-	flags = SS_NO_INIT|SS_BACKGROUND
+	ss_flags = SS_NO_INIT|SS_BACKGROUND
 	runlevels = RUNLEVEL_GAME | RUNLEVEL_POSTGAME
diff --git a/code/controllers/subsystem/processing/fishing.dm b/code/controllers/subsystem/processing/fishing.dm
index 5283560a5a5..9c048a7724f 100644
--- a/code/controllers/subsystem/processing/fishing.dm
+++ b/code/controllers/subsystem/processing/fishing.dm
@@ -4,7 +4,7 @@ PROCESSING_SUBSYSTEM_DEF(fishing)
 	dependencies = list(
 		/datum/controller/subsystem/atoms,
 	)
-	flags = SS_BACKGROUND
+	ss_flags = SS_BACKGROUND
 	wait = 0.05 SECONDS // If you raise it to 0.1 SECONDS, you better also modify [datum/fish_movement/move_fish()]
 	///A list of cached fish icons
 	var/list/cached_fish_icons
diff --git a/code/controllers/subsystem/processing/greyscale.dm b/code/controllers/subsystem/processing/greyscale.dm
index 03b19ac2eff..551f7a12e49 100644
--- a/code/controllers/subsystem/processing/greyscale.dm
+++ b/code/controllers/subsystem/processing/greyscale.dm
@@ -1,6 +1,6 @@
 PROCESSING_SUBSYSTEM_DEF(greyscale)
 	name = "Greyscale"
-	flags = SS_BACKGROUND
+	ss_flags = SS_BACKGROUND
 	wait = 3 SECONDS
 	init_stage = INITSTAGE_EARLY
 	var/list/datum/greyscale_config/configurations = list()
diff --git a/code/controllers/subsystem/processing/instruments.dm b/code/controllers/subsystem/processing/instruments.dm
index 9cd8706e0c4..197c16047b7 100644
--- a/code/controllers/subsystem/processing/instruments.dm
+++ b/code/controllers/subsystem/processing/instruments.dm
@@ -1,7 +1,7 @@
 PROCESSING_SUBSYSTEM_DEF(instruments)
 	name = "Instruments"
 	wait = 0.5
-	flags = SS_KEEP_TIMING
+	ss_flags = SS_KEEP_TIMING
 	priority = FIRE_PRIORITY_INSTRUMENTS
 	/// List of all instrument data, associative id = datum
 	var/static/list/datum/instrument/instrument_data = list()
diff --git a/code/controllers/subsystem/processing/newplayer.dm b/code/controllers/subsystem/processing/newplayer.dm
index e7537da5ead..8b12cb5bf31 100644
--- a/code/controllers/subsystem/processing/newplayer.dm
+++ b/code/controllers/subsystem/processing/newplayer.dm
@@ -1,5 +1,5 @@
 PROCESSING_SUBSYSTEM_DEF(newplayer_info)
 	name = "New Player Info"
-	flags = SS_NO_INIT | SS_BACKGROUND
+	ss_flags = SS_NO_INIT | SS_BACKGROUND
 	wait = 1 SECONDS
 	runlevels = RUNLEVEL_LOBBY | RUNLEVELS_DEFAULT
diff --git a/code/controllers/subsystem/processing/obj.dm b/code/controllers/subsystem/processing/obj.dm
index 3566e8a4dc2..c5eb6e3374c 100644
--- a/code/controllers/subsystem/processing/obj.dm
+++ b/code/controllers/subsystem/processing/obj.dm
@@ -1,5 +1,5 @@
 PROCESSING_SUBSYSTEM_DEF(obj)
 	name = "Objects"
 	priority = FIRE_PRIORITY_OBJ
-	flags = SS_NO_INIT
+	ss_flags = SS_NO_INIT
 	wait = 2 SECONDS
diff --git a/code/controllers/subsystem/processing/personality.dm b/code/controllers/subsystem/processing/personality.dm
index 0f9c1021bef..8b642edd84a 100644
--- a/code/controllers/subsystem/processing/personality.dm
+++ b/code/controllers/subsystem/processing/personality.dm
@@ -1,7 +1,7 @@
 PROCESSING_SUBSYSTEM_DEF(personalities)
 	name = "Personalities"
 	runlevels = RUNLEVEL_GAME
-	flags = SS_BACKGROUND|SS_POST_FIRE_TIMING
+	ss_flags = SS_BACKGROUND|SS_POST_FIRE_TIMING
 	wait = 3 SECONDS
 
 	/// All personality singletons indexed by their type
diff --git a/code/controllers/subsystem/processing/plumbing.dm b/code/controllers/subsystem/processing/plumbing.dm
index 34d6d8f882e..5a9204edf64 100644
--- a/code/controllers/subsystem/processing/plumbing.dm
+++ b/code/controllers/subsystem/processing/plumbing.dm
@@ -2,4 +2,4 @@ PROCESSING_SUBSYSTEM_DEF(plumbing)
 	name = "Plumbing"
 	wait = 10
 	stat_tag = "FD" //its actually Fluid Ducts
-	flags = SS_NO_INIT
+	ss_flags = SS_NO_INIT
diff --git a/code/controllers/subsystem/processing/priority_effects.dm b/code/controllers/subsystem/processing/priority_effects.dm
index f3be081ec50..51274cbfefd 100644
--- a/code/controllers/subsystem/processing/priority_effects.dm
+++ b/code/controllers/subsystem/processing/priority_effects.dm
@@ -1,6 +1,6 @@
 PROCESSING_SUBSYSTEM_DEF(priority_effects)
 	name = "Priority Status Effects"
-	flags = SS_KEEP_TIMING | SS_NO_INIT
+	ss_flags = SS_KEEP_TIMING | SS_NO_INIT
 	wait = 0.2 SECONDS // Same as SSfastprocess, but can be anything, assuming you refactor all high-priority status effect intervals and durations to be a multiple of it.
 	priority = FIRE_PRIORITY_PRIORITY_EFFECTS
 	stat_tag = "PEFF"
diff --git a/code/controllers/subsystem/processing/processing.dm b/code/controllers/subsystem/processing/processing.dm
index d2b25521168..4338ae420d9 100644
--- a/code/controllers/subsystem/processing/processing.dm
+++ b/code/controllers/subsystem/processing/processing.dm
@@ -3,7 +3,7 @@
 SUBSYSTEM_DEF(processing)
 	name = "Processing"
 	priority = FIRE_PRIORITY_PROCESS
-	flags = SS_BACKGROUND|SS_POST_FIRE_TIMING|SS_NO_INIT
+	ss_flags = SS_BACKGROUND|SS_POST_FIRE_TIMING|SS_NO_INIT
 	wait = 1 SECONDS
 
 	var/stat_tag = "P" //Used for logging
diff --git a/code/controllers/subsystem/processing/projectiles.dm b/code/controllers/subsystem/processing/projectiles.dm
index 0124296a3a2..75c0e20ccf8 100644
--- a/code/controllers/subsystem/processing/projectiles.dm
+++ b/code/controllers/subsystem/processing/projectiles.dm
@@ -2,7 +2,7 @@ PROCESSING_SUBSYSTEM_DEF(projectiles)
 	name = "Projectiles"
 	wait = 1
 	stat_tag = "PP"
-	flags = SS_NO_INIT|SS_TICKER
+	ss_flags = SS_NO_INIT|SS_TICKER
 	/*
 	 * Maximum amount of pixels a projectile can pass per tick *unless* its a hitscan projectile.
 	 * This prevents projectiles from turning into essentially hitscans if SSprojectiles starts chugging
diff --git a/code/controllers/subsystem/processing/quirks.dm b/code/controllers/subsystem/processing/quirks.dm
index 1d7725dffe8..5c4239962b2 100644
--- a/code/controllers/subsystem/processing/quirks.dm
+++ b/code/controllers/subsystem/processing/quirks.dm
@@ -44,7 +44,7 @@ GLOBAL_LIST_INIT(quirk_string_blacklist, generate_quirk_string_blacklist())
 // - Quirk datums are stored and hold different effects, as well as being a vector for applying trait string
 PROCESSING_SUBSYSTEM_DEF(quirks)
 	name = "Quirks"
-	flags = SS_BACKGROUND
+	ss_flags = SS_BACKGROUND
 	runlevels = RUNLEVEL_GAME
 	wait = 1 SECONDS
 
diff --git a/code/controllers/subsystem/processing/reagents.dm b/code/controllers/subsystem/processing/reagents.dm
index b116d859709..2891a4cdd67 100644
--- a/code/controllers/subsystem/processing/reagents.dm
+++ b/code/controllers/subsystem/processing/reagents.dm
@@ -4,7 +4,7 @@ PROCESSING_SUBSYSTEM_DEF(reagents)
 	name = "Reagents"
 	priority = FIRE_PRIORITY_REAGENTS
 	wait = 0.25 SECONDS //You might think that rate_up_lim has to be set to half, but since everything is normalised around seconds_per_tick, it automatically adjusts it to be per second. Magic!
-	flags = SS_KEEP_TIMING
+	ss_flags = SS_KEEP_TIMING
 	runlevels = RUNLEVEL_GAME | RUNLEVEL_POSTGAME
 	init_stage = INITSTAGE_EARLY
 	///What time was it when we last ticked
diff --git a/code/controllers/subsystem/processing/station.dm b/code/controllers/subsystem/processing/station.dm
index c19e04559cd..382a531f398 100644
--- a/code/controllers/subsystem/processing/station.dm
+++ b/code/controllers/subsystem/processing/station.dm
@@ -1,6 +1,6 @@
 PROCESSING_SUBSYSTEM_DEF(station)
 	name = "Station"
-	flags = SS_BACKGROUND
+	ss_flags = SS_BACKGROUND
 	runlevels = RUNLEVEL_GAME
 	wait = 5 SECONDS
 
diff --git a/code/controllers/subsystem/processing/turrets.dm b/code/controllers/subsystem/processing/turrets.dm
index 34f128b5c22..f7818a8f2a2 100644
--- a/code/controllers/subsystem/processing/turrets.dm
+++ b/code/controllers/subsystem/processing/turrets.dm
@@ -1,6 +1,6 @@
 /// The subsystem used for portable turrets, as they're relatively more intensive compared to most other machines, so we don't want them hogging tick usage from everything else.
 PROCESSING_SUBSYSTEM_DEF(turrets)
 	name = "Turret Processing"
-	flags = SS_NO_INIT | SS_KEEP_TIMING
+	ss_flags = SS_NO_INIT | SS_KEEP_TIMING
 	wait = 2 SECONDS
 	runlevels = RUNLEVEL_GAME | RUNLEVEL_POSTGAME
diff --git a/code/controllers/subsystem/queuelinks.dm b/code/controllers/subsystem/queuelinks.dm
index 20b55622931..781d863f651 100644
--- a/code/controllers/subsystem/queuelinks.dm
+++ b/code/controllers/subsystem/queuelinks.dm
@@ -2,7 +2,7 @@
 
 SUBSYSTEM_DEF(queuelinks)
 	name = "Queue Links"
-	flags = SS_NO_FIRE | SS_NO_INIT
+	ss_flags = SS_NO_FIRE | SS_NO_INIT
 	///assoc list of pending queues, id = /datum/queue_link
 	var/list/queues = list()
 
diff --git a/code/controllers/subsystem/radiation.dm b/code/controllers/subsystem/radiation.dm
index 316331db7c9..31e06b1afe1 100644
--- a/code/controllers/subsystem/radiation.dm
+++ b/code/controllers/subsystem/radiation.dm
@@ -1,6 +1,6 @@
 SUBSYSTEM_DEF(radiation)
 	name = "Radiation"
-	flags = SS_BACKGROUND | SS_NO_INIT
+	ss_flags = SS_BACKGROUND | SS_NO_INIT
 
 	wait = 0.5 SECONDS
 
diff --git a/code/controllers/subsystem/radioactive_nebula.dm b/code/controllers/subsystem/radioactive_nebula.dm
index 0778725accb..44a908bbb3f 100644
--- a/code/controllers/subsystem/radioactive_nebula.dm
+++ b/code/controllers/subsystem/radioactive_nebula.dm
@@ -7,7 +7,7 @@ SUBSYSTEM_DEF(radioactive_nebula)
 	dependencies = list(
 		/datum/controller/subsystem/processing/station,
 	)
-	flags = SS_BACKGROUND
+	ss_flags = SS_BACKGROUND
 	wait = 30 SECONDS
 
 	VAR_PRIVATE
diff --git a/code/controllers/subsystem/restaurant.dm b/code/controllers/subsystem/restaurant.dm
index 034a7610cb6..c22c9163fbb 100644
--- a/code/controllers/subsystem/restaurant.dm
+++ b/code/controllers/subsystem/restaurant.dm
@@ -5,7 +5,7 @@ This subsystem exists to serve as a holder for important info for the restaurant
 SUBSYSTEM_DEF(restaurant)
 	name = "Restaurant"
 	wait = 20 SECONDS //Roll for new guests but don't do it too fast.
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 	///All venues that exist, assoc list of type - reference
 	var/list/all_venues = list()
 	///All customer data datums that exist, assoc list of type - reference
diff --git a/code/controllers/subsystem/server_maint.dm b/code/controllers/subsystem/server_maint.dm
index c4428f297ae..44a13093a7f 100644
--- a/code/controllers/subsystem/server_maint.dm
+++ b/code/controllers/subsystem/server_maint.dm
@@ -3,7 +3,7 @@
 SUBSYSTEM_DEF(server_maint)
 	name = "Server Tasks"
 	wait = 6
-	flags = SS_POST_FIRE_TIMING
+	ss_flags = SS_POST_FIRE_TIMING
 	priority = FIRE_PRIORITY_SERVER_MAINT
 	init_stage = INITSTAGE_EARLY
 	runlevels = RUNLEVEL_LOBBY | RUNLEVELS_DEFAULT
diff --git a/code/controllers/subsystem/shuttle.dm b/code/controllers/subsystem/shuttle.dm
index 7b1ba551a8e..0553cc6d565 100644
--- a/code/controllers/subsystem/shuttle.dm
+++ b/code/controllers/subsystem/shuttle.dm
@@ -14,7 +14,7 @@ SUBSYSTEM_DEF(shuttle)
 		/datum/controller/subsystem/atoms,
 		/datum/controller/subsystem/air,
 	)
-	flags = SS_KEEP_TIMING
+	ss_flags = SS_KEEP_TIMING
 	runlevels = RUNLEVEL_SETUP | RUNLEVEL_GAME
 
 	/// A list of all the mobile docking ports.
diff --git a/code/controllers/subsystem/skills.dm b/code/controllers/subsystem/skills.dm
index 0ece2ac2aaa..0a7ac5383ed 100644
--- a/code/controllers/subsystem/skills.dm
+++ b/code/controllers/subsystem/skills.dm
@@ -4,7 +4,7 @@ This subsystem mostly exists to populate and manage the skill singletons.
 
 SUBSYSTEM_DEF(skills)
 	name = "Skills"
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 	///Dictionary of skill.type || skill ref
 	var/list/all_skills = list()
 	///List of level names with index corresponding to skill level
diff --git a/code/controllers/subsystem/sounds.dm b/code/controllers/subsystem/sounds.dm
index 5dd2c985f97..db3f94a080b 100644
--- a/code/controllers/subsystem/sounds.dm
+++ b/code/controllers/subsystem/sounds.dm
@@ -2,7 +2,7 @@
 
 SUBSYSTEM_DEF(sounds)
 	name = "Sounds"
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 	init_stage = INITSTAGE_EARLY
 	var/static/using_channels_max = CHANNEL_HIGHEST_AVAILABLE //BYOND max channels
 	/// Amount of channels to reserve for random usage rather than reservations being allowed to reserve all channels. Also a nice safeguard for when someone screws up.
diff --git a/code/controllers/subsystem/sprite_accessories.dm b/code/controllers/subsystem/sprite_accessories.dm
index 2ceed1d3fbb..5173960a3ff 100644
--- a/code/controllers/subsystem/sprite_accessories.dm
+++ b/code/controllers/subsystem/sprite_accessories.dm
@@ -14,7 +14,7 @@
 /// A sprite accessory is something that we add to a human sprite to make them look different. This is hair, facial hair, underwear, mutant bits, etc.
 SUBSYSTEM_DEF(accessories) // just 'accessories' for brevity
 	name = "Sprite Accessories"
-	flags = SS_NO_FIRE | SS_NO_INIT
+	ss_flags = SS_NO_FIRE | SS_NO_INIT
 
 	// HOLY SHIT COMPACT THIS INTO ASSOCIATED LISTS SO WE STOP ADDING VARIABLES
 	//Hairstyles
diff --git a/code/controllers/subsystem/statpanel.dm b/code/controllers/subsystem/statpanel.dm
index 48f1cc1b313..27c0b2d597d 100644
--- a/code/controllers/subsystem/statpanel.dm
+++ b/code/controllers/subsystem/statpanel.dm
@@ -3,7 +3,7 @@ SUBSYSTEM_DEF(statpanels)
 	wait = 4
 	priority = FIRE_PRIORITY_STATPANEL
 	runlevels = RUNLEVELS_DEFAULT | RUNLEVEL_LOBBY
-	flags = SS_NO_INIT
+	ss_flags = SS_NO_INIT
 	var/list/currentrun = list()
 	var/list/global_data
 	var/list/mc_data
diff --git a/code/controllers/subsystem/stickyban.dm b/code/controllers/subsystem/stickyban.dm
index 8a955b2fb0d..e19c574a9fa 100644
--- a/code/controllers/subsystem/stickyban.dm
+++ b/code/controllers/subsystem/stickyban.dm
@@ -1,6 +1,6 @@
 SUBSYSTEM_DEF(stickyban)
 	name = "PRISM"
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 
 	var/list/cache = list()
 	var/list/dbcache = list()
diff --git a/code/controllers/subsystem/tcgsetup.dm b/code/controllers/subsystem/tcgsetup.dm
index 5904c821e79..0a4914ec97c 100644
--- a/code/controllers/subsystem/tcgsetup.dm
+++ b/code/controllers/subsystem/tcgsetup.dm
@@ -1,6 +1,6 @@
 SUBSYSTEM_DEF(trading_card_game)
 	name = "Trading Card Game"
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 	/// Base directory for all related string files
 	var/card_directory = "strings/tcg"
 	/// List of card files to load
diff --git a/code/controllers/subsystem/tgui.dm b/code/controllers/subsystem/tgui.dm
index ea8b02e8129..9f5d518b6c2 100644
--- a/code/controllers/subsystem/tgui.dm
+++ b/code/controllers/subsystem/tgui.dm
@@ -13,7 +13,7 @@
 SUBSYSTEM_DEF(tgui)
 	name = "tgui"
 	wait = 9
-	flags = SS_NO_INIT
+	ss_flags = SS_NO_INIT
 	priority = FIRE_PRIORITY_TGUI
 	runlevels = RUNLEVEL_LOBBY | RUNLEVELS_DEFAULT
 
diff --git a/code/controllers/subsystem/throwing.dm b/code/controllers/subsystem/throwing.dm
index 95c6923269f..db7512a6271 100644
--- a/code/controllers/subsystem/throwing.dm
+++ b/code/controllers/subsystem/throwing.dm
@@ -5,7 +5,7 @@ SUBSYSTEM_DEF(throwing)
 	name = "Throwing"
 	priority = FIRE_PRIORITY_THROWING
 	wait = 1
-	flags = SS_NO_INIT|SS_KEEP_TIMING|SS_TICKER
+	ss_flags = SS_NO_INIT|SS_KEEP_TIMING|SS_TICKER
 	runlevels = RUNLEVEL_GAME | RUNLEVEL_POSTGAME
 
 	var/list/currentrun
diff --git a/code/controllers/subsystem/ticker.dm b/code/controllers/subsystem/ticker.dm
index 92e0390d63e..6bd850c3d08 100644
--- a/code/controllers/subsystem/ticker.dm
+++ b/code/controllers/subsystem/ticker.dm
@@ -4,7 +4,7 @@
 SUBSYSTEM_DEF(ticker)
 	name = "Ticker"
 	priority = FIRE_PRIORITY_TICKER
-	flags = SS_KEEP_TIMING
+	ss_flags = SS_KEEP_TIMING
 	runlevels = RUNLEVEL_LOBBY | RUNLEVEL_SETUP | RUNLEVEL_GAME | RUNLEVEL_POSTGAME
 
 	/// state of current round (used by process()) Use the defines GAME_STATE_* !
diff --git a/code/controllers/subsystem/timer.dm b/code/controllers/subsystem/timer.dm
index ef6826396c2..a9f3d9dcd34 100644
--- a/code/controllers/subsystem/timer.dm
+++ b/code/controllers/subsystem/timer.dm
@@ -18,7 +18,7 @@ SUBSYSTEM_DEF(timer)
 	name = "Timer"
 	wait = 1 // SS_TICKER subsystem, so wait is in ticks
 	priority = FIRE_PRIORITY_TIMER
-	flags = SS_TICKER|SS_NO_INIT
+	ss_flags = SS_TICKER|SS_NO_INIT
 
 	/// Queue used for storing timers that do not fit into the current buckets
 	var/list/datum/timedevent/second_queue = list()
diff --git a/code/controllers/subsystem/title.dm b/code/controllers/subsystem/title.dm
index 8ced977dea2..4b8e12aa4c7 100644
--- a/code/controllers/subsystem/title.dm
+++ b/code/controllers/subsystem/title.dm
@@ -1,6 +1,6 @@
 SUBSYSTEM_DEF(title)
 	name = "Title Screen"
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 	init_stage = INITSTAGE_EARLY
 	var/file_path
 	var/icon/icon
diff --git a/code/controllers/subsystem/traitor.dm b/code/controllers/subsystem/traitor.dm
index ad765dd916b..edb0f237f5e 100644
--- a/code/controllers/subsystem/traitor.dm
+++ b/code/controllers/subsystem/traitor.dm
@@ -4,7 +4,7 @@ SUBSYSTEM_DEF(traitor)
 		/datum/controller/subsystem/mapping,
 		/datum/controller/subsystem/atoms,
 	)
-	flags = SS_KEEP_TIMING
+	ss_flags = SS_KEEP_TIMING
 	wait = 10 SECONDS
 	runlevels = RUNLEVEL_GAME | RUNLEVEL_POSTGAME
 
diff --git a/code/controllers/subsystem/tts.dm b/code/controllers/subsystem/tts.dm
index 15c57b15e5d..12d904af246 100644
--- a/code/controllers/subsystem/tts.dm
+++ b/code/controllers/subsystem/tts.dm
@@ -156,7 +156,7 @@ SUBSYSTEM_DEF(tts)
 
 /datum/controller/subsystem/tts/fire(resumed)
 	if(!tts_enabled)
-		flags |= SS_NO_FIRE
+		ss_flags |= SS_NO_FIRE
 		return
 
 	if(!resumed)
diff --git a/code/controllers/subsystem/tutorials.dm b/code/controllers/subsystem/tutorials.dm
index ceb1fa78786..b03af66028d 100644
--- a/code/controllers/subsystem/tutorials.dm
+++ b/code/controllers/subsystem/tutorials.dm
@@ -1,7 +1,7 @@
 /// Namespace for housing code relating to giving contextual tutorials to users.
 SUBSYSTEM_DEF(tutorials)
 	name = "Tutorials"
-	flags = SS_NO_FIRE
+	ss_flags = SS_NO_FIRE
 
 	/// A mapping of /datum/tutorial type to their manager singleton.
 	/// You probably shouldn't be indexing this directly.
diff --git a/code/controllers/subsystem/unplanned_controllers.dm b/code/controllers/subsystem/unplanned_controllers.dm
index 49fbcb2e83b..e2e78e0951e 100644
--- a/code/controllers/subsystem/unplanned_controllers.dm
+++ b/code/controllers/subsystem/unplanned_controllers.dm
@@ -2,7 +2,7 @@ GLOBAL_LIST_EMPTY(unplanned_controller_subsystems)
 /// Handles making mobs perform lightweight "idle" behaviors such as wandering around when they have nothing planned
 SUBSYSTEM_DEF(unplanned_controllers)
 	name = "Unplanned AI Controllers"
-	flags = SS_POST_FIRE_TIMING|SS_BACKGROUND
+	ss_flags = SS_POST_FIRE_TIMING|SS_BACKGROUND
 	priority = FIRE_PRIORITY_UNPLANNED_NPC
 	dependencies = list(
 		/datum/controller/subsystem/movement/ai_movement,
diff --git a/code/controllers/subsystem/verb_manager.dm b/code/controllers/subsystem/verb_manager.dm
index f09c0509641..0949033ab17 100644
--- a/code/controllers/subsystem/verb_manager.dm
+++ b/code/controllers/subsystem/verb_manager.dm
@@ -22,7 +22,7 @@
 SUBSYSTEM_DEF(verb_manager)
 	name = "Verb Manager"
 	wait = 1
-	flags = SS_TICKER | SS_NO_INIT
+	ss_flags = SS_TICKER | SS_NO_INIT
 	priority = FIRE_PRIORITY_DELAYED_VERBS
 	runlevels = RUNLEVEL_LOBBY | RUNLEVELS_DEFAULT
 
@@ -120,7 +120,7 @@ SUBSYSTEM_DEF(verb_manager)
 		return TRUE
 
 	if((usr.client?.holder && !can_queue_admin_verbs) \
-	|| (!initialized && !(flags & SS_NO_INIT)) \
+	|| (!initialized && !(ss_flags & SS_NO_INIT)) \
 	|| FOR_ADMINS_IF_VERBS_FUCKED_immediately_execute_all_verbs \
 	|| !(runlevels & Master.current_runlevel))
 		return FALSE
diff --git a/code/controllers/subsystem/vis_overlays.dm b/code/controllers/subsystem/vis_overlays.dm
index 717455a77bc..9a4d0c6f08e 100644
--- a/code/controllers/subsystem/vis_overlays.dm
+++ b/code/controllers/subsystem/vis_overlays.dm
@@ -1,7 +1,7 @@
 SUBSYSTEM_DEF(vis_overlays)
 	name = "Vis contents overlays"
 	wait = 1 MINUTES
-	flags = SS_NO_INIT
+	ss_flags = SS_NO_INIT
 	priority = FIRE_PRIORITY_VIS
 
 	var/list/vis_overlay_cache = list()
diff --git a/code/controllers/subsystem/vote.dm b/code/controllers/subsystem/vote.dm
index 776c787f0a4..0d5678a4abe 100644
--- a/code/controllers/subsystem/vote.dm
+++ b/code/controllers/subsystem/vote.dm
@@ -4,7 +4,7 @@
 SUBSYSTEM_DEF(vote)
 	name = "Vote"
 	wait = 1 SECONDS
-	flags = SS_KEEP_TIMING
+	ss_flags = SS_KEEP_TIMING
 	runlevels = RUNLEVEL_LOBBY | RUNLEVELS_DEFAULT
 
 	/// A list of all generated action buttons
diff --git a/code/controllers/subsystem/wardrobe.dm b/code/controllers/subsystem/wardrobe.dm
index 4f25ff47d1c..f394c9b30d2 100644
--- a/code/controllers/subsystem/wardrobe.dm
+++ b/code/controllers/subsystem/wardrobe.dm
@@ -8,7 +8,7 @@
 SUBSYSTEM_DEF(wardrobe)
 	name = "Wardrobe"
 	wait = 10 // This is more like a queue then anything else
-	flags = SS_BACKGROUND
+	ss_flags = SS_BACKGROUND
 	dependencies = list(
 		/datum/controller/subsystem/atoms,
 		/datum/controller/subsystem/mapping,
diff --git a/code/controllers/subsystem/weather.dm b/code/controllers/subsystem/weather.dm
index c330455fb15..7a89236e08a 100644
--- a/code/controllers/subsystem/weather.dm
+++ b/code/controllers/subsystem/weather.dm
@@ -1,7 +1,7 @@
 /// Used for all kinds of weather, ex. lavaland ash storms.
 SUBSYSTEM_DEF(weather)
 	name = "Weather"
-	flags = SS_BACKGROUND
+	ss_flags = SS_BACKGROUND
 	dependencies = list(
 		/datum/controller/subsystem/mapping,
 	)
diff --git a/code/modules/escape_menu/subsystem.dm b/code/modules/escape_menu/subsystem.dm
index f75726514ec..a692a9d1f8e 100644
--- a/code/modules/escape_menu/subsystem.dm
+++ b/code/modules/escape_menu/subsystem.dm
@@ -1,6 +1,6 @@
 /// Subsystem for controlling anything related to the escape menu
 PROCESSING_SUBSYSTEM_DEF(escape_menu)
 	name = "Escape Menu"
-	flags = SS_NO_INIT
+	ss_flags = SS_NO_INIT
 	runlevels = ALL
 	wait = 2 SECONDS
diff --git a/code/modules/lootpanel/ss_looting.dm b/code/modules/lootpanel/ss_looting.dm
index 94e12f88f95..eb8cff36e69 100644
--- a/code/modules/lootpanel/ss_looting.dm
+++ b/code/modules/lootpanel/ss_looting.dm
@@ -2,7 +2,7 @@
 /// Queues image generation for search objects without icons
 SUBSYSTEM_DEF(looting)
 	name = "Loot Icon Generation"
-	flags = SS_NO_INIT
+	ss_flags = SS_NO_INIT
 	priority = FIRE_PRIORITY_PROCESS
 	runlevels = RUNLEVEL_LOBBY|RUNLEVELS_DEFAULT
 	wait = 0.5 SECONDS
diff --git a/code/modules/research/techweb/__techweb_helpers.dm b/code/modules/research/techweb/__techweb_helpers.dm
index d1d3b6ecfde..34c076d5946 100644
--- a/code/modules/research/techweb/__techweb_helpers.dm
+++ b/code/modules/research/techweb/__techweb_helpers.dm
@@ -34,6 +34,6 @@
 	for(var/i in pointlist)
 		var/research_line = "[(i in SSresearch.point_types) || "ERRORED POINT TYPE"]: [pointlist[i]]"
 		if(last_pointlist[i] > 0)
-			research_line += " (+[(last_pointlist[i]) * ((SSresearch.flags & SS_TICKER)? (600 / (world.tick_lag * SSresearch.wait)) : (600 / SSresearch.wait))]/ minute)"
+			research_line += " (+[(last_pointlist[i]) * ((SSresearch.ss_flags & SS_TICKER)? (600 / (world.tick_lag * SSresearch.wait)) : (600 / SSresearch.wait))]/ minute)"
 		ret += research_line
 	return ret.Join("<BR>")
diff --git a/code/modules/unit_tests/subsystem_init.dm b/code/modules/unit_tests/subsystem_init.dm
index 82c9fc956fb..f5168079a90 100644
--- a/code/modules/unit_tests/subsystem_init.dm
+++ b/code/modules/unit_tests/subsystem_init.dm
@@ -3,12 +3,12 @@
 
 /datum/unit_test/subsystem_init/Run()
 	for(var/datum/controller/subsystem/subsystem as anything in Master.subsystems)
-		if(subsystem.flags & SS_NO_INIT)
+		if(subsystem.ss_flags & SS_NO_INIT)
 			continue
 		if(subsystem.initialized)
 			continue
 
-		var/should_fail = !(subsystem.flags & SS_OK_TO_FAIL_INIT)
+		var/should_fail = !(subsystem.ss_flags & SS_OK_TO_FAIL_INIT)
 		var/list/message_strings = list("[subsystem] ([subsystem.type]) is a subsystem meant to initialize but could not get initialized.")
 
 		if(!isnull(subsystem.initialization_failure_message))