From Valve Developer Community
From: Tr1p
"GameInfo"
{
game "tr1p"
title ""
type singleplayer_only
developer "Raphael"
developer_url "http://www.moddb.com/members/raphu604"
icon "resource/icon"
gamelogo 1
FileSystem
{
SteamAppId 218 // GCF for Episode 2
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
}
}
}