Fitbod - Personalized Strength-Training powered by Machine Learning
Xonotic - Xonotic is a free (GPL), fast-paced first-person shooter that works on Windows, OS X and Linux.
JEFIT - Jefit is the #1 popular gym workout app for Android and iOS. Jefit allows you to manage your training routine and keep track of your workout progress easily.
Quake - Quake is a series of first-person shooter video games released by id Software.
Hevy - Simple workout logging, insightful analytics, and a growing community of gym athletes.
Counter-Strike - Counter-Strike is a PC-exclusive FPS video game developed by Valve Corporation.