Hawken - Hawken is an Action, Free-to-play, FPS, Robots, Science-fiction, Tactical, Futuristic, MMO, Co-Op and Multiplayer video game created and published by Reloaded Games.
DayZ - DayZ is an open world multiplayer survival game that tosses you in the midst of a zombie apocalypse.
Insurgency - Take to the streets for intense close quarters combat, where a team's survival depends upon securing crucial strongholds and destroying enemy supply in this multiplayer and cooperative Source Engine based experience.
Dead Frontier - Dead Frontier is among the few zombie based video games that you can obtain in your web browser and for free.
Wolfenstein II: The New Colossus - Wolfenstein II: The New Colossus is an Action-Adventure, First-person Shooter, Exploration and Single-player video game created by MachineGames and published by Bethesda Software.
7 Days to Die - 7 Days to Die is a post-apocalyptic survival game, during which players must craft shelters and horde resources in order to survive waves of undead enemies. Read more about 7 Days to Die.