Call of Duty - Call of Duty is a first-person and third-person shooter series by Infinity Ward.
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.
Xonotic - Xonotic is a free (GPL), fast-paced first-person shooter that works on Windows, OS X and Linux.
DayZ - DayZ is an open world multiplayer survival game that tosses you in the midst of a zombie apocalypse.
Battlefield - The latest news and updates for all things Battlefield, the EA and DICE video game franchise.
Project Zomboid - The Ultimate Zombie Survival RPG.