Warface - Warface - is a free online shooter with diverse PVP modes, exciting PVE missions, outstanding arsenal and millions of fans around the world!
Dead Frontier - Dead Frontier is among the few zombie based video games that you can obtain in your web browser and for free.
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.
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.
Unreal Tournament - Unreal is a series of first-person shooter video games developed by Epic Games.
DayZ - DayZ is an open world multiplayer survival game that tosses you in the midst of a zombie apocalypse.