What are some alternatives?
When comparing PunchLab and Unreal Tournament, you can also consider the following products
BotBoxer - A first ever robotic punching bag with computer vision
Xonotic - Xonotic is a free (GPL), fast-paced first-person shooter that works on Windows, OS X and Linux.
Punch Club - Train hard, fight crocodiles and find love.
Quake - Quake is a series of first-person shooter video games released by id Software.
Freeletics - Freeletics Bodyweight is the most effective fitness training program, adapted to your schedule...
AssaultCube - AssaultCube is a FREE multiplayer first-person shooter game. Taking place in realistic environments, with fast, arcade gameplay, it's addictive and fun!