diff --git a/code/controllers/subsystem/events.dm b/code/controllers/subsystem/events.dm
index 2ecec8989d0..1aea336e375 100644
--- a/code/controllers/subsystem/events.dm
+++ b/code/controllers/subsystem/events.dm
@@ -8,6 +8,8 @@ SUBSYSTEM_DEF(events)
 	var/list/control = list()
 	///assoc list of all datum/round_event_control, ordered by name. name => event
 	var/list/events_by_name = list()
+	///assoc list of all nonrunning event types, ordered by name. name => event typepath
+	var/list/nonrunning_events_by_name = list()
 	///list of all existing /datum/round_event currently being run.
 	var/list/running = list()
 	///cache of currently running events, for lag checking.
@@ -24,7 +26,10 @@ SUBSYSTEM_DEF(events)
 /datum/controller/subsystem/events/Initialize()
 	for(var/type in typesof(/datum/round_event_control))
 		var/datum/round_event_control/event = new type()
-		if(!event.typepath || !event.valid_for_map())
+		if(!event.typepath)
+			continue
+		if(!event.valid_for_map())
+			nonrunning_events_by_name[event.name] = event.type
 			continue //don't want this one! leave it for the garbage collector
 		control += event //add it to the list of all events (controls)
 		events_by_name[event.name] = event
@@ -49,8 +54,9 @@ SUBSYSTEM_DEF(events)
 	var/list/configuration = json_decode(file2text(json_file))
 	for(var/variable in configuration)
 		var/datum/round_event_control/event = events_by_name[variable]
-		if(!event)
-			stack_trace("Invalid event [event] attempting to be configured.")
+		if(isnull(event))
+			if(isnull(nonrunning_events_by_name[variable])) // don't stack_trace events that aren't running due to map flags
+				stack_trace("Invalid event [variable] attempting to be configured.")
 			continue
 		for(var/event_variable in configuration[variable])
 			if(!(event.vars.Find(event_variable)))
diff --git a/config/events.json b/config/events.json
index 8f3b61dc174..e7ad93b0ce3 100644
--- a/config/events.json
+++ b/config/events.json
@@ -1,8 +1,4 @@
 {
-	"Space Pirates": {
-		"min_players": 20,
-		"weight": 10
-	},
 	"Spawn Bitrunning Glitch": {
 		"min_players": 1,
 		"weight": 100
@@ -17,7 +13,7 @@
 		"weight": 25
 	},
 	"Brand Intelligence": {
-		"min_players": 20,
+		"min_players": 15,
 		"weight": 5
 	},
 	"Bureaucratic Error": {
@@ -149,10 +145,6 @@
 		"min_players": 0,
 		"weight": 10
 	},
-	"Spider Infestation": {
-		"min_players": 20,
-		"weight": 10
-	},
 	"Stray Cargo Pod": {
 		"min_players": 0,
 		"weight": 20,
@@ -183,7 +175,7 @@
 	},
 	"Ventilation Clog: Major": {
 		"min_players": 0,
-		"weight": 10,
+		"weight": 12,
 		"earliest_start": 6000
 	},
 	"Ventilation Clog: Critical": {
@@ -202,7 +194,7 @@
 	},
 	"Wormholes": {
 		"min_players": 2,
-		"weight": 1
+		"weight": 2
 	},
 	"Anomaly: Energetic Flux": {
 		"min_players": 1,
@@ -248,43 +240,10 @@
 		"min_players": 20,
 		"weight": 10
 	},
-	"Abductors": {
-		"min_players": 20,
-		"weight": 10
-	},
-	"Alien Infestation": {
-		"min_players": 10,
-		"weight": 5
-	},
-	"Blob": {
-		"min_players": 20,
-		"weight": 10
-	},
-	"Changeling Meteor": {
-		"min_players": 20,
-		"weight": 8
-	},
-	"Spawn Fugitives": {
-		"min_players": 20,
-		"weight": 10,
-		"earliest_start": 18000
-	},
-	"Spawn Morph": {
-		"min_players": 0,
-		"weight": 0
-	},
-	"Spawn Nightmare": {
-		"min_players": 20,
-		"weight": 10
-	},
 	"Lone Operative": {
 		"min_players": 0,
 		"weight": 0
 	},
-	"Spawn Revenant": {
-		"min_players": 5,
-		"weight": 7
-	},
 	"Random Human-level Intelligence": {
 		"min_players": 0,
 		"weight": 10
@@ -293,19 +252,6 @@
 		"min_players": 0,
 		"weight": 0
 	},
-	"Spawn Slaughter Demon": {
-		"min_players": 20,
-		"weight": 1,
-		"earliest_start": 36000
-	},
-	"Spawn Space Dragon": {
-		"min_players": 20,
-		"weight": 7
-	},
-	"Spawn Space Ninja": {
-		"min_players": 20,
-		"weight": 10
-	},
 	"Immovable Rod": {
 		"min_players": 15,
 		"weight": 10