What are some alternatives?
When comparing Punch Club and Battlezone, you can also consider the following products
BotBoxer - A first ever robotic punching bag with computer vision
PunchLab - Track the strikes you throw at the punching bag
Crossout - Crossout is an Entertaining, Action-Adventure, Massively Multiplayer Online (MMO), Vehicular Combat, Exploration and Combat video game developed by Targem Games and published by Gaijin Entertainment.
ROBOCRAFT - Robocraft is an Action-Adventure, MMORPG, Vehicular-Combat, Shooter, Sci-Fi, Strategy, and PvP video game developed and published by Freejam.
World of Tanks - World of Tanks is an Addictive, Action, Massively Multiplayer Online (MMO), Browser-based, and Tank Combat video game developed and published by Wargaming.
Timerly - A real interval timer