Hollow Knight - Descend into the Dark Venture down into a beautiful, ruined world of insects and heroes
Xonotic - Xonotic is a free (GPL), fast-paced first-person shooter that works on Windows, OS X and Linux.
Ori and the Blind Forest - Ori and the Blind Forest is a superb, Platform, Action-Adventure, Role-playing, and Single-player video game created by Moon Studios and published by Microsoft Studios.
Counter-Strike - Counter-Strike is a PC-exclusive FPS video game developed by Valve Corporation.
Celeste - Celeste is a platforming video game by Canadian video game developers Matt Thorson and Noel Berry.
Quake - Quake is a series of first-person shooter video games released by id Software.