Note: This is a Fan-Made Version. The link for the original Version is underneath the game as it can only be played on its official website.
Playing Guide to Diep.IO game
Arrow Keys or WASD: Move
Left Click: Fire
Shoot the shapes to increase your level. There are different types of modes that you can play in this game. You have to choose the mode before you join the game. Shapes cannot be killed in one shot, they have health just like you does. So you have to shoot many times to knock them down.