Quake - Quake is a series of first-person shooter video games released by id Software.
Xonotic - Xonotic is a free (GPL), fast-paced first-person shooter that works on Windows, OS X and Linux.
League of Legends - League of Legends is an Entertaining, Action-Adventure, MOBA (Multiplayer Online Battle Arena), Online and Multiplayer video game developed and published by Riot Games.
Call of Duty - Call of Duty is a first-person and third-person shooter series by Infinity Ward.
Overwatch - Stylized team-based FPS
Heroes of Newerth - Heroes of Newerth is a Fantastic, Action, Multiplayer Online Battle Arena, Fantasy, Strategy, and Multiplayer video game created and published by Frostburn Studios.