KeeperRL is a retro roguelike dungeon simulator that blends classic dungeon management with tactical combat and RPG elements. In the game, you assume the role of an evil keeper tasked with excavating and constructing a sprawling dungeon deep inside a mountain. Your goal is to recruit, train, and equip a horde of malicious minions—from goblins and undead to other dark creatures—to do your bidding, all while preparing your dungeon to withstand invasions from the forces of good.