From Valve Developer Community
From: Tray
"GameInfo"
{
game "Tray-Mod"
title "TRAY-'"
title2 " -MOD"
type singleplayer_only
FileSystem
{
SteamAppId 218 // GCF for Episode 2
//SteamAppId 420
ToolsAppId 211 // Tools will load this (ie: source SDK caches) to get things like materials\debug, materials\editor, etc.
AdditionalContentId 420
SearchPaths
{
Game |gameinfo_path|.
Game |all_source_engine_paths|ep2
Game |all_source_engine_paths|episodic
Game |all_source_engine_paths|hl2
}
}
}
