In Tanko.io, you start by choosing which team you want to be play for, the Soviet Union or the Allied Forces. Now you can choose your tank and connect to the game to head to the battle arena. In the arena, you and your team have to defend your towers while making your way into enemy territory to blow up your enemy's towers. If you get blasted to pieces, you'll have to wait 15 seconds until you respawn on your side of the arena. Destroy other tanks to level up and increase the power of your tank.