Diep.io is an epic free MMO game. It is a combat where you will have to destroy all of the enemy tanks to survive, collect the highest point, unlock new weapons, level up, rank up, and dominate the scoreboard. Pick out the favorite game mode before you enter the arena. After that, you should show up the own abilities to move and attack the others. Aside from the real players, you can eliminate every shape throughout the map. Turn on the auto fire if necessary. Have fun!
Use WASD to move, left click to shoot, E to auto fire.