What are some alternatives?
When comparing PunchLab and Xonotic, you can also consider the following products
BotBoxer - A first ever robotic punching bag with computer vision
Quake - Quake is a series of first-person shooter video games released by id Software.
Punch Club - Train hard, fight crocodiles and find love.
Unreal Tournament - Unreal is a series of first-person shooter video games developed by Epic Games.
Freeletics - Freeletics Bodyweight is the most effective fitness training program, adapted to your schedule...
Counter-Strike - Counter-Strike is a PC-exclusive FPS video game developed by Valve Corporation.