List of skies
This is a list of skies available in Source 2,
Source and
GoldSrc engine games, along with pictures of each skybox. The light_environment settings listed (Ideal Sun Angle, Ideal Brightness, etc) are suggestions based on settings used in official maps; other values may also be appropriate. To test skies in singleplayer without recompiling the map, bring up the console and enter sv_skyname <sky_name>. Quicksave the game, load it again and the old skybox should be temporarily replaced with the new one.

- If you are mapping for
Half-Life 2: Episode Two, you need to add _hdr to the end of most sky names—if it is not already there—so it does not cause the sky texture to stretch. (So, if your sky name is sky_day01_01, you would make it sky_day01_01_hdr).
- If you are mapping in
Source 2, you will need to add env_sky entities and change skybox texture there.

- Search "sky" in the texture browser within Hammer to see some of the skyboxes available in the game you are mapping for.
- Skyboxes listed as "not HDR compatible" can still be used in HDR mode. They will always display fullbright, but can still be affected by blooming from autoexposure. Additionally, they may be configured to not ignore fog, unlike HDR skies.







Contents
- 1 GoldSrc Engine Games
- 2 Source Engine Games
- 2.1 Official Games
- 2.1.1 Half-Life 2
- 2.1.2 Half-Life 2: Episode One
- 2.1.3 Half-Life 2: Episode Two
- 2.1.4 Half-Life 2: Lost Coast
- 2.1.5 Half-Life: Source
- 2.1.6 Counter-Strike: Source
- 2.1.7 Day of Defeat: Source
- 2.1.8 Team Fortress 2
- 2.1.9 Left 4 Dead
- 2.1.10 Left 4 Dead 2
- 2.1.11 Alien Swarm
- 2.1.12 Portal
- 2.1.13 Portal 2
- 2.1.14 Counter-Strike: Global Offensive
- 2.2 Mods + Third-party games
- 2.1 Official Games
- 3 Source 2 Engine Games
GoldSrc Engine Games
Official Games
Half-Life
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These skyboxes are available to ![]() |
Half-Life: Opposing Force
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These skyboxes are available to ![]() |
Counter-Strike
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These skyboxes are available to
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Ricochet
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These skyboxes are available to
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Mods + Third-party games
Expand Expand the list of third-party games' skyboxes
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Gunman ChroniclesThese skyboxes are available to Todo: Add light values
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Source Engine Games
Official Games
Half-Life 2
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These skyboxes are available to ![]() ![]() ![]() ![]() ![]() ![]() ![]() HDR versions of all skyboxes except sky_borealis01 and sky_wasteland02 are available by appending _hdr to the sky name. HDR skyboxes is only available with Source 2007 ( ![]()
Only outdoor maps that have both skyboxes and light_environments are referenced by this list. |
Half-Life 2: Episode One
Expand Expand Half-Life 2: Episode One skyboxes
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These skyboxes are available to |
Half-Life 2: Episode Two
Expand Expand Half-Life 2: Episode Two skyboxes
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These skyboxes are available to |
Half-Life 2: Lost Coast
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These skyboxes are available to |
Half-Life: Source
Expand Expand Half-Life: Source skyboxes
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These skyboxes are available in
These skyboxes exist in the Half-Life: Source game files but are unused in game. They are available in Some light_environment entries from GoldSrc skybox list may function with these, but brightness values will need to be adjusted. |
Counter-Strike: Source
Expand Expand Counter-Strike: Source skyboxes
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These skyboxes are available to ![]() |
Day of Defeat: Source
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These skyboxes are available to |
Team Fortress 2
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These skyboxes are available to |
Left 4 Dead
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Left 4 Dead 2
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These skyboxes are available to The values for the light_environment and the light_directional are listed below. |
Alien Swarm
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These skyboxes are available to |
Portal
Expand Expand Portal skyboxes
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These skyboxes are available to |
Portal 2
Expand Expand Portal 2 skyboxes
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These skyboxes are available to |
Counter-Strike: Global Offensive
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These skyboxes are available to
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Mods + Third-party games
See this subpage.
Source 2 Engine Games
Official Games
Counter-Strike 2
Expand Expand Counter-Strike 2 skyboxes
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Half-Life: Alyx (Incomplete)
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Environment articles: | |
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Skies and environment maps | ![]() |
Terrain and displacement mapping | Displacements • Creating Holes in Displacements • Digital Elevation Models • Creating custom terrain with Worldmachine |