Enter the Gungeon is a top-down bullet hell roguelike where players take control of one of several characters known as Gungeoneers and fight their way through the procedurally generated floors of the Gungeon. Combat revolves around shooting bullet-shaped enemies with an extensive arsenal of both conventional and exotic firearms, while using dodge rolls, table flips, and environmental cover to avoid dense patterns of projectiles. The game features permadeath, meaning all items and weapons are lost upon dying, and players must start again from the first floor. Between runs, a hub area called the Breach allows players to unlock new items and interact with non-player characters.