Players take on the role of a commander in a turreted defensive position, tasked with preventing incoming rounds of projectiles from breaching their fortifications. The objective is to protect a military base from enemy shells by strategically placing and upgrading towers to absorb and destroy incoming fire.
Gameplay revolves around merging blocks to upgrade tower components, such as cannons and ammunition depots, to improve defensive capabilities. The layout of the base can be rearranged and optimized as new upgrades become available. With each level, the challenge increases as the number of projectiles fired by the enemy grows, requiring players to balance resource management and strategic planning to succeed. This game runs in a web browser, requiring no download or registration to play.