Every game on the site built with Source Engine, busiest first.
Valve's co-op zombie shooter. Browse servers with live player counts, plus custom campaigns, maps, weapons and character mods.
Facepunch's physics sandbox on the Source engine. Browse servers for DarkRP, TTT, Prop Hunt and more, plus addons, maps and gamemodes.
Valve's Source engine remake of the classic tactical shooter. Browse servers with live player counts, plus maps, skins and SourceMod plugins.
Valve's class-based multiplayer shooter. Browse community servers with live player counts, plus maps, skins, game modes and plugins.
Valve's original four-player co-op zombie shooter. Browse servers with live player counts, plus custom campaigns and mods.
Free co-op zombie survival shooter on the Source engine. Browse servers with live player counts, plus maps and mods.
Valve's physics-driven multiplayer shooter. Browse servers with live player counts, plus maps, mods and plugins.
Valve's WWII team shooter on the Source engine. Browse servers with live player counts, plus maps, skins and plugins.
New World Interactive's tactical FPS on the Source engine. Browse servers with live player counts, plus maps and mods.
Free standalone mod built on Team Fortress 2 with four-team play, a VIP mode and new weapons. Browse servers, maps and mods.
Free Wild West shooter on the Source engine. Browse servers with live player counts, plus maps and mods.
Co-op mod for Half-Life 2 that lets you play the campaign with friends. Browse servers, maps and mods.
Free melee game on the Source engine. Browse servers with live player counts, plus maps and mods.
Free survivors vs zombies team game on the Source engine. Browse servers with live player counts, plus maps and mods.
The original Half-Life deathmatch rebuilt on the Source engine. Browse servers with live player counts, plus maps and mods.
Valve's puzzle game with single-player and co-op campaigns. Download mods, custom test chambers, maps and community tools.
