From Valve Developer Community
From: Underhell
"GameInfo"
{
name "Underhell"
game "Underhell"
title "UNDERHELL"
"developer" "Mxthe"
"developer_url" "http://underhell.wecreatestuff.com"
"icon" "Uh"
type singleplayer_only
hidden_maps
{
"test_hardware" 1
}
FileSystem
{
SteamAppId 218 // This will mount all the GCFs we need (240=CS:S, 220=HL2).
ToolsAppId 211 // Tools will load this (ie: source SDK caches) to get things like materials\debug, materials\editor, etc.
SearchPaths
{
Game |gameinfo_path|.
Game hl2
}
}
}