diff --git a/README.md b/README.md
index 263c8cc..687799c 100644
--- a/README.md
+++ b/README.md
@@ -68,6 +68,7 @@ In general, there have been many wild encounter tweaks. View this document for d
 - Pokemon October et al: Bellignan, Caretorker, Inoshika, Bipulla, Sonegg, Kolta, Coinpur, Dodaerie, Bundra, Kiwooked, Koalyptus, Trebir
 - Tom Wang: Gold/Chris running sprite
 - Seasick: Kris running sprite
+- Ferropexola/aforward9600: Time of day-based tileset palette code
 
 # 16-bit index expansion for Crystal
 
diff --git a/constants/landmark_constants.asm b/constants/landmark_constants.asm
index 8e0d014..63d2f65 100644
--- a/constants/landmark_constants.asm
+++ b/constants/landmark_constants.asm
@@ -121,6 +121,7 @@ DEF KANTO_LANDMARK EQU const_value
     ;const LANDMARK_ONE_ISLAND
 DEF NIHON_LANDMARK EQU const_value
 	const LANDMARK_SILENT_HILLS
+	const LANDMARK_BLUE_FOREST
 DEF NUM_LANDMARKS EQU const_value
 
 ; used in CaughtData
diff --git a/constants/map_constants.asm b/constants/map_constants.asm
index e3a0cc3..b28edb3 100644
--- a/constants/map_constants.asm
+++ b/constants/map_constants.asm
@@ -516,8 +516,12 @@ ENDM
 	endgroup
 	
 	newgroup SILENT_HILLS ; 27
-	map_const SILENT_HILLS,								10, 10 ; 1
-	map_const DEBUG_ROOM,								20, 20 ; 2
+	map_const SILENT_HILLS,								   10, 10 ; 1
+	map_const DEBUG_ROOM,								   20, 20 ; 2
+	endgroup
+	
+	newgroup BLUE_FOREST                                          ; 27
+	map_const BLUE_FOREST,							       20, 18 ; 1
 	endgroup
 	
 DEF NUM_MAP_GROUPS EQU const_value ; 27
diff --git a/constants/scgb_constants.asm b/constants/scgb_constants.asm
index dde5f41..7749fdc 100644
--- a/constants/scgb_constants.asm
+++ b/constants/scgb_constants.asm
@@ -72,6 +72,7 @@ DEF SCGB_DEFAULT EQU $ff
 	const PREDEFPAL_SILVER_CAVE
 	const PREDEFPAL_DUNGEONS
 	const PREDEFPAL_SILENT_HILLS
+	const PREDEFPAL_BLUE_FOREST
 	const PREDEFPAL_NITE
 	const PREDEFPAL_BLACKOUT
 	const PREDEFPAL_DIPLOMA ; RB_MEWMON
diff --git a/data/maps/attributes.asm b/data/maps/attributes.asm
index a23e8e9..7258025 100644
--- a/data/maps/attributes.asm
+++ b/data/maps/attributes.asm
@@ -711,3 +711,4 @@ ENDM
 	map_attributes SilentHills, SILENT_HILLS, $00, 0 ; this is on its own for now. add connections to mt. silver later.
 	map_attributes DebugRoom, DEBUG_ROOM, $05, 0 ; Debug Room :V
 	map_attributes CliffCave, CLIFF_CAVE, $00, 0
+	map_attributes BlueForest, BLUE_FOREST, $00, 0 ; this is on its own for now. add connections later.
\ No newline at end of file
diff --git a/data/maps/blocks.asm b/data/maps/blocks.asm
index ec4aaac..fb5da4a 100644
--- a/data/maps/blocks.asm
+++ b/data/maps/blocks.asm
@@ -1083,3 +1083,6 @@ DebugRoom_Blocks: ; Pipis Room
 
 CliffCave_Blocks:
 	INCBIN "maps/CliffCave.ablk"
+
+BlueForest_Blocks:
+	INCBIN "maps/BlueForest.ablk"
diff --git a/data/maps/landmarks.asm b/data/maps/landmarks.asm
index 9851c15..9629178 100644
--- a/data/maps/landmarks.asm
+++ b/data/maps/landmarks.asm
@@ -109,6 +109,7 @@ Landmarks:
 	landmark 140, 116, FastShipName
 	assert_table_length NIHON_LANDMARK
 	landmark 92, 108, SilentHillsName
+	landmark 140, 60, BlueForestName
 	assert_table_length NUM_LANDMARKS
 
 NewBarkTownName:     db "NEW BARK¯TOWN@"
@@ -215,3 +216,4 @@ UndergroundName:     db "UNDERGROUND@"
 BattleTowerName:     db "BATTLE¯TOWER@"
 SpecialMapName:      db "SPECIAL@"
 SilentHillsName:	 db "SILENT¯HILLS@"
+BlueForestName:		 db "BLUE¯FOREST@"
diff --git a/data/maps/maps.asm b/data/maps/maps.asm
index af16758..b569bde 100644
--- a/data/maps/maps.asm
+++ b/data/maps/maps.asm
@@ -44,6 +44,7 @@ MapGroupPointers::
 	dw MapGroup_Saffron     ; 25
 	dw MapGroup_Cherrygrove ; 26
 	dw MapGroup_SilentHills ; 27
+	dw MapGroup_BlueForest  ; 28
 	assert_table_length NUM_MAP_GROUPS
 
 MapGroup_Olivine:
@@ -557,3 +558,8 @@ MapGroup_SilentHills:
 	map SilentHills, TILESET_NIHON_01, TOWN, LANDMARK_SILENT_HILLS, MUSIC_NIHON_TOWN_01, TRUE, PALETTE_AUTO, FISHGROUP_SHORE
 	map DebugRoom, TILESET_NIHON_01, TOWN, LANDMARK_SILENT_HILLS, MUSIC_SINJOH_RUINS, TRUE, PALETTE_MORN, FISHGROUP_SHORE
 	assert_table_length NUM_SILENT_HILLS_MAPS
+	
+MapGroup_BlueForest:
+	table_width MAP_LENGTH, MapGroup_BlueForest
+	map BlueForest, TILESET_NIHON_SNOWY, TOWN, LANDMARK_BLUE_FOREST, MUSIC_SINJOH_RUINS, TRUE, PALETTE_AUTO, FISHGROUP_SHORE
+	assert_table_length NUM_BLUE_FOREST_MAPS
diff --git a/data/maps/outdoor_sprites.asm b/data/maps/outdoor_sprites.asm
index feab3ce..fdac697 100644
--- a/data/maps/outdoor_sprites.asm
+++ b/data/maps/outdoor_sprites.asm
@@ -31,6 +31,7 @@ OutdoorSprites:
 	dw SaffronGroupSprites
 	dw CherrygroveGroupSprites
 	dw SilentHillsGroupSprites
+	dw BlueForestGroupSprites
 	assert_table_length NUM_MAP_GROUPS
 
 PalletGroupSprites:
@@ -309,6 +310,7 @@ IndigoGroupSprites:
 	db SPRITE_BOULDER
 
 SilentHillsGroupSprites: ; Will have its own thing eventually
+BlueForestGroupSprites: ; Will have its own thing eventually
 NewBarkGroupSprites:
 	db SPRITE_SUICUNE
 	db SPRITE_SILVER_TROPHY
diff --git a/data/maps/roofs.asm b/data/maps/roofs.asm
index 1e2b09d..569e251 100644
--- a/data/maps/roofs.asm
+++ b/data/maps/roofs.asm
@@ -39,6 +39,7 @@ MapGroupRoofs:
 	db -1             ; 25
 	db ROOF_NEW_BARK  ; 26 (Cherrygrove)
 	db ROOF_NEW_BARK  ; 27 (Silent Hills)
+	db ROOF_NEW_BARK  ; 28 (Blue Forest)
 	assert_table_length NUM_MAP_GROUPS + 1
 
 Roofs:
diff --git a/data/maps/scripts.asm b/data/maps/scripts.asm
index e07d360..4ae02e8 100644
--- a/data/maps/scripts.asm
+++ b/data/maps/scripts.asm
@@ -500,3 +500,4 @@ INCLUDE "maps/LakeOfRageMart.asm"
 INCLUDE "maps/LakeOfRagePrycesHouse.asm"
 INCLUDE "maps/DebugRoom.asm"
 INCLUDE "maps/CliffCave.asm"
+INCLUDE "maps/BlueForest.asm"
diff --git a/data/maps/sgb_roof_pal_inds.asm b/data/maps/sgb_roof_pal_inds.asm
index 788abfe..78ebbca 100644
--- a/data/maps/sgb_roof_pal_inds.asm
+++ b/data/maps/sgb_roof_pal_inds.asm
@@ -31,4 +31,5 @@ MapGroupRoofSGBPalInds:
 	db PREDEFPAL_SAFFRON
 	db PREDEFPAL_CHERRYGROVE
 	db PREDEFPAL_SILENT_HILLS
+	db PREDEFPAL_BLUE_FOREST
 	assert_table_length NUM_MAP_GROUPS + 1
diff --git a/data/tilesets/nihon_snowy_attributes.bin b/data/tilesets/nihon_snowy_attributes.bin
index 8275bcd..b66d60a 100644
Binary files a/data/tilesets/nihon_snowy_attributes.bin and b/data/tilesets/nihon_snowy_attributes.bin differ
diff --git a/data/tilesets/nihon_snowy_collision.asm b/data/tilesets/nihon_snowy_collision.asm
index 4a901e2..886a3f9 100644
--- a/data/tilesets/nihon_snowy_collision.asm
+++ b/data/tilesets/nihon_snowy_collision.asm
@@ -2,3 +2,15 @@
 	tilecoll FLOOR, FLOOR, FLOOR, FLOOR ; 01
 	tilecoll FLOOR, FLOOR, FLOOR, FLOOR ; 02
 	tilecoll FLOOR, FLOOR, FLOOR, FLOOR ; 03
+	tilecoll FLOOR, FLOOR, FLOOR, FLOOR ; 04
+	tilecoll FLOOR, FLOOR, FLOOR, FLOOR ; 05
+	tilecoll FLOOR, FLOOR, FLOOR, FLOOR ; 06
+	tilecoll FLOOR, FLOOR, FLOOR, FLOOR ; 07
+	tilecoll FLOOR, FLOOR, FLOOR, FLOOR ; 08
+	tilecoll FLOOR, FLOOR, FLOOR, FLOOR ; 09
+	tilecoll FLOOR, FLOOR, FLOOR, FLOOR ; 0a
+	tilecoll FLOOR, FLOOR, FLOOR, FLOOR ; 0b
+	tilecoll WALL, DOOR, FLOOR, FLOOR ; 0c
+	tilecoll FLOOR, FLOOR, FLOOR, FLOOR ; 0d
+	tilecoll FLOOR, FLOOR, FLOOR, FLOOR ; 0e
+	tilecoll FLOOR, FLOOR, FLOOR, FLOOR ; 0f
diff --git a/data/tilesets/nihon_snowy_metatiles.bin b/data/tilesets/nihon_snowy_metatiles.bin
index 86c74e0..363b7d8 100644
Binary files a/data/tilesets/nihon_snowy_metatiles.bin and b/data/tilesets/nihon_snowy_metatiles.bin differ
diff --git a/engine/tilesets/tileset_palettes.asm b/engine/tilesets/tileset_palettes.asm
index 9941022..14530d1 100644
--- a/engine/tilesets/tileset_palettes.asm
+++ b/engine/tilesets/tileset_palettes.asm
@@ -12,6 +12,8 @@ LoadSpecialMapPalette:
 	jr z, .radio_tower
 	cp TILESET_MANSION
 	jr z, .mansion_mobile
+	cp TILESET_NIHON_SNOWY
+	jr z, .snowy
 	jr .do_nothing
 
 .pokecom_2f
@@ -48,6 +50,11 @@ LoadSpecialMapPalette:
 	scf
 	ret
 
+.snowy
+	call LoadSnowyPalette
+	scf
+	ret
+	
 .do_nothing
 	and a
 	ret
@@ -135,3 +142,35 @@ LoadMansionPalette:
 
 MansionPalette2:
 INCLUDE "gfx/tilesets/mansion_2.pal"
+
+LoadSnowyPalette:
+	ld a, [wTimeOfDay]
+	and $7
+	cp NITE_F
+	jr z, .nite
+	cp DAY_F
+	jr z, .day
+	scf
+;morn
+	ld a, BANK(wBGPals1)
+	ld de, wBGPals1
+	ld hl, SnowyMornPalette
+	ld bc, 8 palettes
+	jp FarCopyWRAM
+	ret
+.day
+	ld a, BANK(wBGPals1)
+	ld de, wBGPals1
+	ld hl, SnowyDayPalette
+	ld bc, 8 palettes
+	jp FarCopyWRAM
+	ret
+.nite
+	ld a, BANK(wBGPals1)
+	ld de, wBGPals1
+	ld hl, SnowyNitePalette
+	ld bc, 8 palettes
+	jp FarCopyWRAM
+	ret
+
+INCLUDE "gfx/tilesets/snowy.pal"
diff --git a/gfx/sgb/predef.pal b/gfx/sgb/predef.pal
index 9299476..05dd7a3 100644
--- a/gfx/sgb/predef.pal
+++ b/gfx/sgb/predef.pal
@@ -24,6 +24,7 @@
 	RGB 31,31,31, 26,26,26, 15,20,31, 00,00,00 ; PREDEFPAL_SILVER_CAVE
 	RGB 31,31,31, 21,14,09, 15,20,20, 00,00,00 ; PREDEFPAL_DUNGEONS
 	RGB 31,31,31, 12,28,22, 15,20,20, 00,00,00 ; PREDEFPAL_SILENT_HILLS
+	RGB 31,31,31, 18,14,31, 15,20,20, 00,00,00 ; PREDEFPAL_BLUE_FOREST
 	RGB 31,31,31, 12,28,22, 15,20,20, 00,00,00 ; PREDEFPAL_NITE
 	RGB 31,31,31, 07,07,07, 02,03,03, 00,00,00 ; PREDEFPAL_BLACKOUT
 	RGB 31,31,31, 30,22,17, 16,14,19, 00,00,00 ; PREDEFPAL_DIPLOMA
diff --git a/gfx/tilesets/nihon_snowy.png b/gfx/tilesets/nihon_snowy.png
index 09bb716..a14135b 100644
Binary files a/gfx/tilesets/nihon_snowy.png and b/gfx/tilesets/nihon_snowy.png differ
diff --git a/gfx/tilesets/roofs.pal b/gfx/tilesets/roofs.pal
index 1c32cdd..c101bc8 100644
--- a/gfx/tilesets/roofs.pal
+++ b/gfx/tilesets/roofs.pal
@@ -109,3 +109,7 @@
 ; group 27 (Silent Hills)
 	RGB 09,31,23, 10,22,22 ; morn/day
 	RGB 03,15,17, 02,10,15 ; nite
+	
+; group 28 (Blue Forest)
+	RGB 24,22,31, 18,14,31 ; morn/day
+	RGB 12,10,24, 08,03,23 ; nite
diff --git a/gfx/tilesets/snowy.pal b/gfx/tilesets/snowy.pal
index 4ad6bb4..3b581e1 100644
--- a/gfx/tilesets/snowy.pal
+++ b/gfx/tilesets/snowy.pal
@@ -1,24 +1,24 @@
-; morn
+SnowyMornPalette:
 	RGB 29,31,21, 23,23,31, 13,13,18, 07,07,07 ; gray
 	RGB 29,31,21, 31,19,24, 30,10,06, 07,07,07 ; red
-	RGB 29,31,21, 12,25,01, 05,14,00, 07,07,07 ; green (cyan)
+	RGB 29,31,21, 09,28,31, 16,11,31, 07,07,07 ; green (cyan)
 	RGB 31,31,31, 08,12,31, 01,04,31, 07,07,07 ; water
 	RGB 29,31,21, 31,31,07, 31,16,01, 07,07,07 ; yellow
 	RGB 29,31,21, 24,18,07, 20,15,03, 07,07,07 ; brown
 	RGB 29,31,21, 15,31,31, 05,17,31, 07,07,07 ; roof
 	RGB 31,31,16, 31,31,16, 14,09,00, 00,00,00 ; text
 
-; day
+SnowyDayPalette:
 	RGB 27,31,31, 23,23,31, 13,13,18, 07,07,07 ; gray
 	RGB 27,31,31, 31,19,24, 30,10,06, 07,07,07 ; red
-	RGB 27,31,31, 12,25,01, 05,14,00, 07,07,07 ; green  (cyan)
+	RGB 27,31,31, 09,28,31, 16,11,31, 07,07,07 ; green  (cyan)
 	RGB 31,31,31, 08,12,31, 01,04,31, 07,07,07 ; water
 	RGB 27,31,31, 31,31,07, 31,16,01, 07,07,07 ; yellow
 	RGB 27,31,31, 24,18,07, 20,15,03, 07,07,07 ; brown
 	RGB 27,31,31, 15,31,31, 05,17,31, 07,07,07 ; roof
 	RGB 31,31,16, 31,31,16, 14,09,00, 00,00,00 ; text
 
-; nite
+SnowyNitePalette:
 	RGB 15,14,24, 11,11,22, 07,07,16, 00,00,00 ; gray
 	RGB 15,14,24, 14,07,17, 13,00,08, 00,00,00 ; red
 	RGB 15,14,24, 02,12,23, 05,05,17, 00,00,00 ; green  (cyan)
@@ -26,4 +26,5 @@
 	RGB 30,30,11, 16,14,18, 16,14,10, 00,00,00 ; yellow
 	RGB 15,14,24, 12,09,15, 08,04,05, 00,00,00 ; brown
 	RGB 15,14,24, 13,12,23, 11,09,20, 00,00,00 ; roof
-	RGB 31,31,16, 31,31,16, 14,09,00, 00,00,00 ; text
\ No newline at end of file
+	RGB 31,31,16, 31,31,16, 14,09,00, 00,00,00 ; text
+	
\ No newline at end of file
diff --git a/maps/BlueForest.ablk b/maps/BlueForest.ablk
new file mode 100644
index 0000000..3d2ed6f
Binary files /dev/null and b/maps/BlueForest.ablk differ
diff --git a/maps/BlueForest.asm b/maps/BlueForest.asm
new file mode 100644
index 0000000..7a4827d
--- /dev/null
+++ b/maps/BlueForest.asm
@@ -0,0 +1,18 @@
+	object_const_def
+
+BlueForest_MapScripts:
+	def_scene_scripts
+
+	def_callbacks
+
+BlueForest_MapEvents:
+	db 0, 0 ; filler
+
+	def_warp_events
+	warp_event  3, 22, DEBUG_ROOM, 1
+
+	def_coord_events
+
+	def_bg_events
+
+	def_object_events
\ No newline at end of file
diff --git a/maps/DebugRoom.asm b/maps/DebugRoom.asm
index aee8ae3..586b41d 100644
--- a/maps/DebugRoom.asm
+++ b/maps/DebugRoom.asm
@@ -97,10 +97,10 @@ DebugRoom_MapEvents:
 	warp_event 15,  2, GOLDENROD_CITY, 1 ; city warp
 	warp_event  4,  9, PALLET_TOWN, 1 ; left lab/league warp
 	warp_event  5,  9, PALLET_TOWN, 1 ; right lab/league warp
-	warp_event 35, 17, VIRIDIAN_FOREST, 1 ; east warp
-	warp_event  5, 35, VIRIDIAN_FOREST, 1 ; southwest warp
-	warp_event 19, 34, VIRIDIAN_FOREST, 1 ; southern warp
-	warp_event 33, 33, VIRIDIAN_FOREST, 1 ; southeast warp
+	warp_event 35, 17, BLUE_FOREST, 1 ; east warp
+	warp_event  5, 35, BLUE_FOREST, 1 ; southwest warp
+	warp_event 19, 34, BLUE_FOREST, 1 ; southern warp
+	warp_event 33, 33, BLUE_FOREST, 1 ; southeast warp
 	warp_event  5,  3, AZALEA_TOWN, 1
 	warp_event 34, 11, CLIFF_CAVE, 1