Counter-Strike - Counter-Strike is a PC-exclusive FPS video game developed by Valve Corporation.
Cubelands - Cubelands is an Exciting, Role-playing, Sandbox, Building, Single and Multiplayer video game created and published by Upjers.
Xonotic - Xonotic is a free (GPL), fast-paced first-person shooter that works on Windows, OS X and Linux.
Garry’s Mod - Garry’s Mod is Funny, Sandbox, Co-op, Building, FPS, Action, Single and Multiplayer video game created by Facepunch and published by Valve.
Rage - Rage Software, also Rage Games and FX Digital Network, was a British video game developer.
Astroneer - ASTRONEER is an Action-Adventure, Sandbox, Exploration, Single and Multiplayer video game developed and published by System Era Softworks.