RULES AND FEATURES
The tank was driving and got stuck in the middle of the field. It's good that there are an infinite number of shells. All sorts of evil spirits attack from all sides: cockroaches, balls of some kind. Shoot back and defend as best you can. It is convenient that you do not have to wait until one object is hit by a shot, shoot immediately at the second one, otherwise you will not have time to shoot it.
Flash player plugin is not supported still Feb.21.
You can play the game CIRCULAR DEFENSE online 24 hours a day for free. It is no need to download and install it on your computer, and it is also not required you to be the registered user. Just ckick and enjoy. See also a set of related games below on that you might be interested to look.