diff --git a/code/game/objects/effects/anomalies/anomalies_dimensional_themes.dm b/code/game/objects/effects/anomalies/anomalies_dimensional_themes.dm
index 80fded840c..b1f8bf1f2c 100644
--- a/code/game/objects/effects/anomalies/anomalies_dimensional_themes.dm
+++ b/code/game/objects/effects/anomalies/anomalies_dimensional_themes.dm
@@ -225,6 +225,7 @@
 	replace_objs = list(
 		/obj/structure/bed/chair = list(/obj/structure/bed/chair/wood = 3, /obj/structure/bed/chair/wood/wings = 1),
 		/obj/machinery/door/airlock = list(/obj/structure/simple_door/wood = 1),
+		/obj/structure/table = list(/obj/structure/table/woodentable = 1)
 	)
 	random_spawns = list(
 		/obj/structure/flora/grass/green = 3,
@@ -257,8 +258,19 @@
 /datum/dimension_theme/snow
 	name = "Snow"
 	icon_state = "sheet-snow_2"
-	material = /datum/material/snow
+	material = /datum/material/snowbrick
 	replace_floors = list(/turf/simulated/floor/snow = 10, /turf/simulated/floor/outdoors/ice = 1)
 	replace_objs = list(
-		/obj/machinery/door/airlock = list(/obj/structure/simple_door/)
+		/obj/machinery/door/airlock = list(/obj/structure/simple_door/snowbrick = 1),
 	)
+	replace_walls = /turf/simulated/wall/snowbrick
+
+/datum/dimension_theme/diamond
+	name = "Diamond"
+	icon_state = "sheet-diamond"
+	material = /datum/material/diamond
+	replace_floors = list(/turf/simulated/floor/tiled/material/diamond = 1)
+	replace_objs = list(
+		/obj/machinery/door/airlock = list(/obj/machinery/door/airlock/diamond = 1)
+	)
+	replace_walls = /turf/simulated/wall/diamond
diff --git a/code/game/objects/effects/anomalies/anomaly_placer.dm b/code/game/objects/effects/anomalies/anomaly_placer.dm
index 4e1d7ea570..657365981f 100644
--- a/code/game/objects/effects/anomalies/anomaly_placer.dm
+++ b/code/game/objects/effects/anomalies/anomaly_placer.dm
@@ -5,11 +5,10 @@
 	if(!allowed_areas)
 		generate_allowed_areas()
 
-	var/list/possible_areas = typecache_filter_list(GLOB.areas_by_type, allowed_areas)
-	if(!length(possible_areas))
+	if(!length(allowed_areas))
 		CRASH("No valid areas for anomaly found.")
 
-	var/area/landing_area = pick(possible_areas)
+	var/area/landing_area = pick(allowed_areas)
 	var/list/turf_test = get_area_turfs(landing_area)
 	if(!turf_test.len)
 		CRASH("Anomaly : No valid turfs found for [landing_area] - [landing_area.type]")
@@ -38,17 +37,21 @@
 	return TRUE
 
 /datum/anomaly_placer/proc/generate_allowed_areas()
-	var/static/list/safe_area_types = typecacheof(list(
+	var/static/list/safe_area_types = list(
 		/area/crew_quarters,
 		/area/shuttle,
 		/area/space,
 		/area/solar,
-		/area/engineering,
+		/area/engineering/engine_room,
 		/area/maintenance,
 		/area/holodeck,
-		/area/ai
-	))
+		/area/ai,
+		/area/tcommsat
+	)
 
-	var/static/list/unsafe_area_subtypes = typecacheof(list(/area/engineering/break_room))
+	allowed_areas = get_station_areas(safe_area_types)
 
-	allowed_areas = GLOB.areas_by_type - safe_area_types + unsafe_area_subtypes
+	for(var/area/check_area in allowed_areas)
+		if((check_area.z in using_map.station_levels) || !check_area.flag_check(AREA_FORBID_EVENTS))
+			continue
+		allowed_areas.Remove(check_area)
diff --git a/code/game/objects/structures/simple_doors.dm b/code/game/objects/structures/simple_doors.dm
index aa46981849..9b93ea748a 100644
--- a/code/game/objects/structures/simple_doors.dm
+++ b/code/game/objects/structures/simple_doors.dm
@@ -304,6 +304,10 @@
 /obj/structure/simple_door/glamour/Initialize(mapload,var/material_name)
 	. = ..(mapload, material_name || MAT_GLAMOUR)
 
+/obj/structure/simple_door/snowbrick/Initialize(mapload, var/material_name)
+	. = ..(mapload, material_name || MAT_SNOWBRICK)
+
+
 /obj/structure/simple_door/cult/TryToSwitchState(atom/user)
 	if(isliving(user))
 		var/mob/living/L = user
diff --git a/code/modules/research/tg/designs/misc_designs.dm b/code/modules/research/tg/designs/misc_designs.dm
index c500ec61ca..47ef0d4416 100644
--- a/code/modules/research/tg/designs/misc_designs.dm
+++ b/code/modules/research/tg/designs/misc_designs.dm
@@ -305,3 +305,4 @@
 	category = list(
 		RND_CATEGORY_EQUIPMENT + RND_SUBCATEGORY_EQUIPMENT_SCIENCE
 	)
+	departmental_flags = DEPARTMENT_BITFLAG_SCIENCE