Loop Hero is a unique blend of strategy and RPG elements, set in a post-apocalyptic world where reality has been destroyed by a powerful lich. The player takes on the role of the last surviving hero, who possesses the mysterious ability to "remember" environments and bring them back into existence.
The game's core mechanic is based around a deckbuilding system, where the player embarks on expeditions that loop through a path, fighting monsters and collecting equipment and environment cards. Defeating enemies and discovering new locations can grant significant boosts to the hero's stats, while using environment cards can create new challenges and opportunities.
The game also features a camp management system, where the player can build and upgrade structures and supplies to gain permanent bonuses and access new cards, classes, and items. The relationships between characters met during expeditions can also change depending on the hero's chosen class, adding a layer of complexity to the gameplay.