diff --git a/code/_globalvars/bitfields.dm b/code/_globalvars/bitfields.dm
new file mode 100644
index 0000000000..f5c2f1ff26
--- /dev/null
+++ b/code/_globalvars/bitfields.dm
@@ -0,0 +1,134 @@
+GLOBAL_LIST_INIT(bitfields, list(
+	"appearance_flags" = list(
+		"LONG_GLIDE" = LONG_GLIDE,
+		"RESET_COLOR" = RESET_COLOR,
+		"RESET_ALPHA" = RESET_ALPHA,
+		"RESET_TRANSFORM" = RESET_TRANSFORM,
+		"NO_CLIENT_COLOR" = NO_CLIENT_COLOR,
+		"KEEP_TOGETHER" = KEEP_TOGETHER,
+		"KEEP_APART" = KEEP_APART,
+		"PLANE_MASTER" = PLANE_MASTER,
+		"TILE_BOUND" = TILE_BOUND,
+		"PIXEL_SCALE" = PIXEL_SCALE
+		),
+	"sight" = list(
+		"SEE_INFRA" = SEE_INFRA,
+		"SEE_SELF" = SEE_SELF,
+		"SEE_MOBS" = SEE_MOBS,
+		"SEE_OBJS" = SEE_OBJS,
+		"SEE_TURFS" = SEE_TURFS,
+		"SEE_PIXELS" = SEE_PIXELS,
+		"SEE_THRU" = SEE_THRU,
+		"SEE_BLACKNESS" = SEE_BLACKNESS,
+		"BLIND" = BLIND
+		),
+	"obj_flags" = list(
+		"EMAGGED" = EMAGGED,
+		"IN_USE" = IN_USE,
+		"CAN_BE_HIT" = CAN_BE_HIT,
+		"BEING_SHOCKED" = BEING_SHOCKED,
+		"DANGEROUS_POSSESSION" = DANGEROUS_POSSESSION,
+		"ON_BLUEPRINTS" = ON_BLUEPRINTS,
+		"UNIQUE_RENAME" = UNIQUE_RENAME,
+		"USES_TGUI" = USES_TGUI
+		),
+	"datum_flags" = list(
+		"DF_USE_TAG" = DF_USE_TAG,
+		"DF_VAR_EDITED" = DF_VAR_EDITED
+		),
+	"item_flags" = list(
+		"BEING_REMOVED" = BEING_REMOVED,
+		"IN_INVENTORY" = IN_INVENTORY,
+		"FORCE_STRING_OVERRIDE" = FORCE_STRING_OVERRIDE,
+		"NEEDS_PERMIT" = NEEDS_PERMIT
+		),
+	"admin_flags" = list(
+		"BUILDMODE" = R_BUILDMODE,
+		"ADMIN" = R_ADMIN,
+		"BAN" = R_BAN,
+		"FUN" = R_FUN,
+		"SERVER" = R_SERVER,
+		"DEBUG" = R_DEBUG,
+		"POSSESS" = R_POSSESS,
+		"PERMISSIONS" = R_PERMISSIONS,
+		"STEALTH" = R_STEALTH,
+		"POLL" = R_POLL,
+		"VAREDIT" = R_VAREDIT,
+		"SOUNDS" = R_SOUNDS,
+		"SPAWN" = R_SPAWN,
+		"AUTOLOGIN" = R_AUTOLOGIN,
+		"DBRANKS" = R_DBRANKS
+		),
+	"interaction_flags_atom" = list(
+		"INTERACT_ATOM_REQUIRES_ANCHORED" = INTERACT_ATOM_REQUIRES_ANCHORED,
+		"INTERACT_ATOM_ATTACK_HAND" = INTERACT_ATOM_ATTACK_HAND,
+		"INTERACT_ATOM_UI_INTERACT" = INTERACT_ATOM_UI_INTERACT,
+		"INTERACT_ATOM_REQUIRES_DEXTERITY" = INTERACT_ATOM_REQUIRES_DEXTERITY,
+		"INTERACT_ATOM_IGNORE_INCAPACITATED" = INTERACT_ATOM_IGNORE_INCAPACITATED,
+		"INTERACT_ATOM_IGNORE_RESTRAINED" = INTERACT_ATOM_IGNORE_RESTRAINED,
+		"INTERACT_ATOM_CHECK_GRAB" = INTERACT_ATOM_CHECK_GRAB,
+		"INTERACT_ATOM_NO_FINGERPRINT_ATTACK_HAND" = INTERACT_ATOM_NO_FINGERPRINT_ATTACK_HAND,
+		"INTERACT_ATOM_NO_FINGERPRINT_INTERACT" = INTERACT_ATOM_NO_FINGERPRINT_INTERACT
+		),
+	"interaction_flags_machine" = list(
+		"INTERACT_MACHINE_OPEN" = INTERACT_MACHINE_OPEN,
+		"INTERACT_MACHINE_OFFLINE" = INTERACT_MACHINE_OFFLINE,
+		"INTERACT_MACHINE_WIRES_IF_OPEN" = INTERACT_MACHINE_WIRES_IF_OPEN,
+		"INTERACT_MACHINE_ALLOW_SILICON" = INTERACT_MACHINE_ALLOW_SILICON,
+		"INTERACT_MACHINE_OPEN_SILICON" = INTERACT_MACHINE_OPEN_SILICON,
+		"INTERACT_MACHINE_REQUIRES_SILICON" = INTERACT_MACHINE_REQUIRES_SILICON
+		),
+	"pass_flags" = list(
+		"PASSTABLE" = PASSTABLE,
+		"PASSGLASS" = PASSGLASS,
+		"PASSGRILLE" = PASSGRILLE,
+		"PASSBLOB" = PASSBLOB,
+		"PASSMOB" = PASSMOB,
+		"PASSCLOSEDTURF" = PASSCLOSEDTURF,
+		"LETPASSTHROW" = LETPASSTHROW
+		),
+	"movement_type" = list(
+		"GROUND" = GROUND,
+		"FLYING" = FLYING
+		),
+	"resistance_flags" = list(
+		"LAVA_PROOF" = LAVA_PROOF,
+		"FIRE_PROOF" = FIRE_PROOF,
+		"FLAMMABLE" = FLAMMABLE,
+		"ON_FIRE" = ON_FIRE,
+		"UNACIDABLE" = UNACIDABLE,
+		"ACID_PROOF" = ACID_PROOF,
+		"INDESTRUCTIBLE" = INDESTRUCTIBLE,
+		"FREEZE_PROOF" = FREEZE_PROOF
+		),
+	"reagents_holder_flags" = list(
+		"REAGENT_NOREACT" = REAGENT_NOREACT
+		),
+	"flags_1" = list(
+		"STOPSPRESSUREDMAGE_1 / NOJAUNT_1 (turfs)" = STOPSPRESSUREDMAGE_1,
+		"NODROP_1 / UNUSED_TRANSIT_TURF_1 (turfs)" = NODROP_1,
+		"NOBLUDGEON_1 / CAN_BE_DIRTY_1 (turfs)" = NOBLUDGEON_1,
+		"MASKINTERNALS_1" = MASKINTERNALS_1,
+		"HEAR_1 / NO_DEATHRATTLE_1 (turfs)" = HEAR_1,
+		"CHECK_RICOCHET_1 / NO_RUINS_1 (turfs)" = CHECK_RICOCHET_1,
+		"CONDUCT_1 / NO_LAVA_GEN_1" = CONDUCT_1,
+		"ABSTRACT_1" = ABSTRACT_1,
+		"NODECONSTRUCT_1" = NODECONSTRUCT_1,
+		"OVERLAY_QUEUED_1" = OVERLAY_QUEUED_1,
+		"NOSLIP_1" = NOSLIP_1
+		),
+	"flags_2" = list(
+		"SLOWS_WHILE_IN_HAND_2" = SLOWS_WHILE_IN_HAND_2,
+		"NO_EMP_WIRES_2" = NO_EMP_WIRES_2,
+		"HOLOGRAM_2" = HOLOGRAM_2,
+		"FRONZE_2" = FROZEN_2,
+		"STATIONLOVING_2" = STATIONLOVING_2,
+		"INFORM_ADMINS_ON_RELOCATE_2" = INFORM_ADMINS_ON_RELOCATE_2,
+		"BANG_PROTECT_2" = BANG_PROTECT_2,
+		"HEALS_EARS_2" = HEALS_EARS_2,
+		"OMNITONGUE_2" = OMNITONGUE_2,
+		"TESLA_IGNORE_2" = TESLA_IGNORE_2,
+		"NO_MAT_REDEMPTION_2" = NO_MAT_REDEMPTION_2,
+		"LAVA_PROTECT_2" = LAVA_PROTECT_2
+		)
+	))