These's like a tons of upgrade and classes for you to choose ranged from a high-damage sniper rifle to a real life double cannon, players is also be able to choose special upgrade every one level. Like regeneration, damage, speed, firerate,...
Controls / Keys:
[Arrow keys] or [WASD] to move
[E] toggles guns on and off,
[Mouse] to aim
[1-8] to upgrade stats
[M] + [1-8] to set auto stat upgrade (just [M] to turn off)
(all credit for the original game of diep.io, go and visit the game website here: https://diep.io/) Diep.io, tank game, io game, online tank game, upgrade, strategy, weapons, damage, speed, regeneration, fire rate, sniper rifle, double cannon, customizable, competitive, multiplayer, free to play, tank battles, skill-based, action game