Includes Source SDK Games
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Games with Includes Source SDK
Explore 122 games featuring includes source sdk
Left 4 Dead 2
Set in the zombie apocalypse, Left 4 Dead 2 is a co-operative action horror FPS takes you and your friends through the cities, swamps and cemeteries of the Deep South, from Savannah to New Orleans across five expansive campaigns.
Garry's Mod
Garry's Mod is a physics sandbox. There aren't any predefined aims or goals. We give you the tools and leave you to play.
Counter-Strike: Source
Counter-Strike: Source blends Counter-Strike's award-winning teamplay action with the advanced technology of Source™ technology.
Half-Life 2
Reawakened from stasis in the occupied metropolis of City 17, Gordon Freeman is joined by Alyx Vance as he leads a desperate human resistance. Experience the landmark first-person shooter packed with immersive world-building, boundary-pushing physics, and exhilarating combat.
Left 4 Dead
From Valve (the creators of Counter-Strike, Half-Life and more) comes Left 4 Dead, a co-op action horror game for the PC and Xbox 360 that casts up to four players in an epic struggle for survival against swarming zombie hordes and terrifying mutant monsters.
Portal
Portal™ is a new single player game from Valve. Set in the mysterious Aperture Science Laboratories, Portal has been called one of the most innovative new games on the horizon and will offer gamers hours of unique gameplay.
Holdfast: Nations At War
Fight on multiple fronts in Holdfast: Nations At War - A multiplayer first and third-person shooter set during the great Napoleonic Era and WW1. Charge into battle with over 150 players per server!
No More Room in Hell
The chances of you surviving this all out war of society and the undead are slim to none. Already, there are millions of the walking dead shambling about, searching for food to eat. There's no known cure. One bite can possibly end it all for you. However, you aren't alone in this nightmare.
Day of Defeat: Source
Valve's WWII Multiplayer Classic - Now available for Mac.
Astro Colony
Explore endless Universe and create the most efficient constellation of colonies. Build conveyor systems to automate production. Take care of Astronauts and their needs! Establish new colonies as part of intergalactic simulation.
Half-Life 2: Deathmatch
Fast multiplayer action set in the Half-Life 2 universe! HL2's physics adds a new dimension to deathmatch play. Play straight deathmatch or try Combine vs. Resistance teamplay. Toss a toilet at your friend today!
Fistful of Frags
Multiplayer based, first person enabled, action packed and skill demanding shooter set in the Wild West times. A unique combination of non stop action and slow but powerful weaponry.
Pool Nation FX Lite
Pool Nation FX, is a seriously fun Pool & Snooker Sim! A visually stunning billiards simulation with the critically acclaimed POOL NATION physics engine. Play 8 Ball, 9 Ball, Snooker, Killer & more, unlimited Career modes with customised difficulty levels, Trickshots, Local and Online Multiplayer, spectate live matches and feel...
Zombie Panic! Source
Dive into the zombie apocalypse with Zombie Panic! Source: a cooperative, survival-horror first-person-shooter. A fast-paced standalone modification.
Military Conflict: Vietnam
It’s 1968 in Vietnam, the time to “Make War Not Love”. Side with the Viet Cong or U.S. Army in this intense, fast-paced FPS set in the Vietnam War — now with co-op zombie mode. Choose from 300+ weapons of destruction. Kill or be killed!
Battle Grounds III
After 6 years of development, Battle Grounds III (BG3) is the next iteration in the classic franchise which began 17 years ago. Prepare for battle in the American War of Independence!
Portal with RTX
Experience the critically acclaimed and award-winning Portal™ reimagined with full ray tracing and DLSS 4 in this free DLC for Portal owners. Start thinking with portals, with RTX on.
Absorber
Absorber: An addictive idle RPG adventure in which you absorb the strength and abilities of defeated enemies. Explore a fantasy world, defeat challenging enemies. Immerse yourself in the unique gameplay. Will you rise to become the ultimate absorber?
Pirates Vikings & Knights II
Step into the ultimate three-way war for honor, glory, and gold! This beloved community-driven game brings together swashbuckling Pirates, battle-hardened Vikings, and chivalrous Knights in hilarious and intense class-based combat. Join the fun, embrace the chaos, and fight your way to victory!
Rise of the Triad
Apogee Software and Interceptor Entertainment proudly present the rebirth of the cult-classic first-person shooter, “Rise of the Triad”. Bigger, better and more ludicrous than ever before.