Steam 3rd Party Mod Support
Store tab
Get your Mod listed under the "Store" tab. To do this add an entry to Category:Source mods or Category:GoldSrc mods using these guidelines:
- Have a short description of the game.
- Include 5-10 screenshots in JPG format. Ideally in widescreen format such as 1920x1080 or 1280x720.
- Provide a game page header image of 460x215 (should include your logo and key art. Please look around the Steam store for examples) Photoshop Template
- Provide a small game capsule of 231x87 (should include your logo and key art. This image shows up in search results and other lists throughout Steam) Photoshop Template
If your Mod becomes one of the top Mods being played then you will appear in the store using the information you supplied in the above post.
My Games list
Setup a developer link in the "My Games" page when a user installs your Mod.
Source
You can use the following keyvalues in your GameInfo.txt file.
developer "Mod Team/Company Name" developer_url "http://..." icon "path/to/icon" manual "http://..."
The icon must be an uncompressed, 24-bit format TGA, 16x16 pixels in size. The path is relative to the mod's installation directory (i.e where GameInfo.txt is) and should not include the TGA file extension. In the example above, the file would be "path/to/icon.tga" inside the mod directory.
Mod makers should also include a 32x32 pixel version of their mod icon. This should be in the same directory and have the same filename as the standard 16x16 icon but with "_big" appended. In the above example, the big icon would have the filename "path/to/icon_big.tga" This is used in the details view of the Steam library window. If a big icon isn't included, Steam will fall back to the 16x16 icon.
Goldsource
You can use the following keyvalues in your liblist.gam.
developer "Mod Team/Company Name" developer_url "http://..." icon "path/to/icon" manual "http://..."
The icon must be an uncompressed, 24-bit format TGA, 16x16 pixels in size. The path is relative to the mod's installation directory (i.e where liblist.gam is) and should not include the TGA file extension. In the example above, the file would be "path/to/icon.tga" inside the mod directory.
Desktop icon
Creating a desktop icon for your mod is simple. Just place an icon file in the <Steam>\steam\games
with the same name as the Game
keyvalue specified in your GameInfo.txt/liblist.gam file. Remember to omit all colons from the icon's filename and the filename is case insensitive.
To install the icon there, use HKEY_LOCAL_MACHINE\Software\Valve\Steam\InstallPath
from the registry and append \steam\games
to it.