Call of Duty - Call of Duty is a first-person and third-person shooter series by Infinity Ward.
Alien Shooter 2: Reloaded - Alien Shooter 2: Reloaded combines the elements of Role-playing, Top-down, Action, and Shooter.
Unreal Tournament - Unreal is a series of first-person shooter video games developed by Epic Games.
Guns Gore and Cannoli - Guns Gore and Cannoli is an Action-Adventure, Side-Scroll, 2D, Arcade, Platform, Co-op and Single-player video game developed and published by Crazy Monkey Studios.
Xonotic - Xonotic is a free (GPL), fast-paced first-person shooter that works on Windows, OS X and Linux.
HELLDIVERS - Helldivers is an Adventure-based, Shoot em’up, Co-op, Single and Multiplayer video game developed by Arroshead Games Studios and published by Sony Computer Entertainment.