Players take on the role of a last-resort defender, tasked with fending off waves of undead invaders that threaten to overrun a fortified perimeter. The game requires quick reflexes and strategic thinking as the player must scan the horizon for incoming zombies and respond accordingly.
The core mechanic involves selecting and equipping various defensive structures, each with its own strengths and weaknesses. The objective is to hold out for as long as possible, with each level introducing new zombie types and upgraded defenses.
As the game progresses, the zombie hordes become increasingly aggressive, forcing the player to adapt their strategy and prioritize defensive positions. The game runs in the browser, with no download or registration required, making it easily accessible from any device with an internet connection.