Quake - Quake is a series of first-person shooter video games released by id Software.
Medal of Honor: Warfighter - Medal of Honor: Warfighter is created by Electronic Arts and provides similar gameplay to the Call of Duty series.
Call of Duty - Call of Duty is a first-person and third-person shooter series by Infinity Ward.
Tom Clancy’s Ghost Recon: Wildlands - Tom Clancy’s Ghost Recon: Wildlands is an Action-Adventure, Third-person Shooter, Open-World, Exploration, Single and Multiplayer video game created and published by Ubisoft.
DotA 2 - Dota 2 is a Free-to-play, Action-Adventure, Multiplayer Online Battle Arena, Single and Multiplayer video game created and published by Valve Corporation.
Xonotic - Xonotic is a free (GPL), fast-paced first-person shooter that works on Windows, OS X and Linux.