12 Hold the Horde · Moddable games your group can play together online, including Military Conflict: Vietnam, Codename CURE, and Alien Swarm: Reactive Drop.
All games: 12
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!
Codename CURE is a first person, co-operative zombie game with support for up to five players, providing dynamic, fast-paced zombie fragging with both objective, and survival-based missions.
Co-operative top-down shooter game available for free. An epic bug hunt featuring a unique blend of co-op play and squad-level tactics.
Fight through connected Half-Life campaigns and a wide range of community maps with friends online or over LAN. Revive teammates, solve map-built puzzles, and keep your group moving together.
In KILLING FLOOR 2, players descend into continental Europe after it has been overrun by horrific, murderous clones called Zeds that were created by rogue elements of the Horzine Corporation. 6-player Co-Op & 12-player VS Zed-slaughtering mayhem.
Contagion mixes cooperative zombie survival, a story campaign, and player-versus-player modes. See how its online party, game modes, and older PC setup fit your group.
Contractors is a team-based competitive multiplayer shooter game for virtual reality devices. Experience the next level virtual warfare with hardcore controls, lethal weapons, customizable load-outs, and intense firefights. BECOME AN OPERATOR.
Up to three players share one city map in Atom Zombie Smasher, directing a helicopter and mercenary units through short, unpredictable zombie rescues.
Fight through infected hordes with up to three friends in Left 4 Dead 2, or face another team in eight-player Versus.
Build defenses with up to three friends, then fight beside them as monsters swarm the crystal. Dungeon Defenders mixes tower strategy, action combat, and a long trail of character and gear upgrades.
Battle for survival against endless alien hordes with your friends! The Anacrusis is a first-person shooter that dynamically adjusts difficulty to you. Experience intense 1-4 player co-op action or play as the aliens and stop your friends in 1-8 player Versus mode. Full Steam Workshop support!
Voxel Project offers an immersive sandbox experience set in a fully destructible voxel environment. Explore a dynamic world teeming with vehicles, dynamic fire mechanics, enemy NPCs, voxel gore, weapon customization, and a bunch of additional features to discover.