Flats and textures/Skies

The following is a list of the sky textures available in SRB2. Custom levels can use one of these skies via the SkyNum level header parameter, or they can supply a custom sky.

Single Player

SkySlot #	Preview	Name	Uses	Lump name(s)	Texture name
1		Greenflower Zone	MAP01 – Greenflower Zone Act 1 MAP02 – Greenflower Zone Act 2 MAP03 – Greenflower Zone Act 3 MAP33 – Techno Legacy Zone MAP50 – Floral Field Zone MAP60 – Multiplayer Special Stage 1 MAP99 – Titlemap MAPF0 – Lime Forest Zone MAPM0 – Jade Valley Zone	GFSK00 GFSK01 GFSK02	SKY1
4		Techno Hill Zone Act 1	MAP04 – Techno Hill Zone Act 1 MAP06 – Techno Hill Zone Act 3 MAP61 – Multiplayer Special Stage 2 MAPF8 – Iron Turret Zone MAPM1 – Noxious Factory Zone	THSKYAL THSKYB THSKYC THSKYCL1 THSKYCL2 THSKYCL3 THSKYCL4	SKY4
6		Techno Hill Zone Act 2	MAP05 – Techno Hill Zone Act 2 MAP51 – Toxic Plateau Zone MAPMA – Frost Columns Zone	SKY6	SKY6
8		Deep Sea Zone	MAP07 – Deep Sea Zone Act 1 MAP08 – Deep Sea Zone Act 2 MAP09 – Deep Sea Zone Act 3 MAP52 – Flooded Cove Zone MAP62 – Multiplayer Special Stage 3 MAPF1 – Lost Palace Zone	DSSK2CLF DSSK2SK2 DSSK2SKL DSSK2SKY DSSMOON DSSMOON2	SKY8
10		Castle Eggman Zone Act 1	MAP10 – Castle Eggman Zone Act 1 MAP12 – Castle Eggman Zone Act 3 MAP53 – Cavern Fortress Zone MAP63 – Multiplayer Special Stage 4 MAPM3 – Thunder Citadel Zone	CESB12 CESK03 CESKCLD1 CESKCLD2 CESKCLD3 CESKPAT0 CESKPAT1	SKY10
11		Castle Eggman Zone Act 2	MAP11 – Castle Eggman Zone Act 2 MAPF7 – Dual Fortress Zone	~048 ACSK2CA3 BANEGG1W CESK03 CESKCLD1 CESKCLD2 CESKCLD3 CESKPAT0 CESKPAT1	SKY11
13		Arid Canyon Zone Act 1	MAP13 – Arid Canyon Zone Act 1 MAP64 – Multiplayer Special Stage 5	ACSK10 ACSK11 ACSK12 ACSK13 ACSK14	SKY13
14		Arid Canyon Zone Act 2	MAP14 – Arid Canyon Zone Act 2	ACSK2BG1 ACSK2CA1 ACSK2CA2 ACSK2CA3 ACSK2CA4	SKY14
15		Arid Canyon Zone Act 3	MAP15 – Arid Canyon Zone Act 3 MAP54 – Dusty Wasteland Zone	ACSKYCA1 ACSKYCA2 ACSKYCL0 ACSKYCL1 ACSKYCL2 ACSKYCL3 ACSKYCL4 ACSKYST2 ACSKYSTO ACSKYSUN	SKY15
22		Egg Rock Zone	MAP22 – Egg Rock Zone Act 1 MAP23 – Egg Rock Zone Act 2 MAP25 – Black Core Zone Act 1 MAP26 – Black Core Zone Act 2 MAP27 – Black Core Zone Act 3 MAP56 – Egg Satellite Zone MAP66 – Multiplayer Special Stage 7 MAPF4 – Twisted Terminal Zone MAPM6 – Orbital Hangar Zone	ERSKY1..32	SKY22
159		Red Volcano Zone Act 1	MAP16 – Red Volcano Zone Act 1	SKY159	SKY159

Bonus levels

SkySlot #	Preview	Name	Uses	Lump name	Texture name
17		Christmas sky	MAP70 – Christmas Chime Zone	SKY17	SKY17
29		Spring Hill Zone		SKY29	SKY29
30		Frozen Hillside Zone	MAP30 – Frozen Hillside Zone	SKY30	SKY30
31		Mario Koopa Blast	MAP31 – Pipe Towers Zone	SKY31	SKY31
35		Azure Temple Zone	MAP42 – Azure Temple Zone	SKY35	SKY35
40		Aerial Garden Zone	MAP41 – Aerial Garden Zone MAP71 – Dream Hill Zone MAPM9 – Celestial Sanctuary Zone	SKY40	SKY40
99		Black Hole Zone	MAP57 – Black Hole Zone MAPZ0 – Tutorial Zone	SKY99	SKY99
172		Haunted Heights Zone	MAP40 – Haunted Heights Zone	SKY172	SKY172
300		Alpine Paradise Zone Act 1	MAP72 – Alpine Paradise Zone Act 1	SKY300	SKY300
301		Alpine Paradise Zone Act 2	MAP73 – Alpine Paradise Zone Act 2	SKY301	SKY301

Old and alternate skies

SkySlot #	Preview	Name	Uses	Lump name	Texture name
2		Greenflower Zone (Old)	MAPM7 – Sapphire Falls Zone MAPMB – Meadow Match Zone	SKY2	SKY2
3		Techno Hill Zone Act 1 (Only v2.1)		SKY3	SKY3
5		Techno Hill Zone Act 1 (v2.0 earlier)		SKY5	SKY5
7		Deep Sea Zone (Old)	MAPM2 – Tidal Palace Zone MAPM5 – Infernal Cavern Zone	SKY7	SKY7
9		Starry sky (Demo 4 Castle Eggman Zone)		SKY9	SKY9
12		Castle Eggman Zone (Old)		SKY12	SKY12
16		Arid Canyon Zone Act 2 (Alternate)		ACSK2BG1 ACSK2BG2 ACSK2BG3 ACSK2BG4 ACSK2CA1 ACSK2CA2 ACSK2CA3 ACSK2CA4	SKY16
18		Old Castle Eggman Zone (Brightened)		SKY18	SKY18
20		Castle Eggman Zone Act 3 (Old)	MAP32 – Forest Fortress Zone MAP55 – Magma Caves Zone MAP65 – Multiplayer Special Stage 6 MAPF2 – Silver Cascade Zone MAPF5 – Clockwork Towers Zone	SKY20	SKY20
21		Egg Rock Zone Act 1 (Old)	MAPM4 – Desolate Twilight Zone	ERSKY1 ERSKY2 ERSKY8 ERSKY9	SKY21
98		Black Hole Zone (Alternate)		SKY98	SKY98
100		Old Greenflower Zone (Cyan)		SKY100	SKY100
128		Spring Hill (Morning)		SKY128	SKY128
129		Spring Hill (Night)		SKY129	SKY129
302		Alpine Paradise Zone (Night)		SKY302	SKY302

Old Special Stages

SkySlot #	Preview	Name	Uses	Lump name	Texture name
50		Special Stage 1 (Old)		SKY50	SKY50
51		Special Stage 2 (Old)		SKY51	SKY51
52		Special Stage 3 (Old)		SKY52	SKY52
53		Special Stage 4 (Old)		SKY53	SKY53
54		Special Stage 5 (Old)		SKY54	SKY54
55		Special Stage 6 (Old)	MAPF3 – Icicle Falls Zone MAPM8 – Diamond Blizzard Zone	SKY55	SKY55
56		Special Stage 7 (Old)		SKY56	SKY56
57		Special Stage 8 (Old)		SKY57	SKY57
58		Special Stage 5 (v1.09.4)		SKY58	SKY58
59		Special Stage 3 (v1.09.4)		SKY59	SKY59

SRB1 Remake

SkySlot #	Preview	Name	Uses	Lump name	Texture name
103		Great Forest Zone		SKY103	SKY103
107		Ice Palace Zone		SKY107	SKY107
117		Robotopolis[sic] Zone		SKY117	SKY117
127		Athenos Zone		SKY127	SKY127
132 133 134 135		Hidden Palace Zone		SKY132 SKY133 SKY134 SKY135	SKY132 SKY133 SKY134 SKY135

Other skies

SkySlot #	Preview	Name	Uses	Lump name	Texture name
19		Sonic OVA		SKY19	SKY19
33		Psychedelic sunset 1		SKY33	SKY33
34		Psychedelic sunset 2		SKY34	SKY34
64		Wood Zone/Verdant Forest Zone		SKY64	SKY64
66		Sonic X-treme black sky		SKY66	SKY66
68		Nimbus Ruins Zone	MAPF8 – Nimbus Ruins Zone	SKY68	SKY68
1024		Psychedelic sky 1		SKY1024	SKY1024
1025		Psychedelic sky 2		SKY1025	SKY1025
1026		Psychedelic sky 3		SKY1026	SKY1026
1027		Psychedelic sky 4		SKY1027	SKY1027
1028		Psychedelic sky 5		SKY1028	SKY1028

See also

• F_SKY1
• Level header > SkyNum
• Linedef type 423: Change Sky
• Custom textures tutorial