Download SourceSplit here: https://github.com/fatalis/sourcesplit/releases When you download sourcesplit, drop the provided dll into the livesplit folder. Open livesplit and add SourceSplit to your layout. Copy these settings: https://gyazo.com/0d0f2898fa44a0b4b0c49cca8859fefc The game is not supported so it does not start, end, or reset automatically. By default the game will also not autosplit. If you can configure it to do that yourself, then good for you. Start the timer when you see the counter strike level load, and end when you enter the beam. If you have questions post in the corresponding forum post here: http://www.speedrun.com/tbg/thread/j5ore/1#sj5ec