Play Tank Games at Free Online Games. Our best Tank Games include and more. Play Tank Attack - Defend your stronghold from the attacking waves of enemy tanks. How to play Tank Attack. Arrows/WASD = Move Mouse = Aim & Fire Cannon Space = Shoot Machine Gun Destroy the factories to complete a level, then spend. And check back. Tanks 3D Online HTML Game. Aim using your mouse cursor, and Left Click to fire your missiles. Only registered users can vote without verification. If the Adobe Flash Player is not installed, click the button below to download it. Get into the war zone and start blasting enemy tanks.