Everyone thinks a lot about what’s above us, but rarely about what’s beneath. A mysterious structure was found in the middle of the desert. Its entrance leads far below—into depths no one has ever recorded. This is the Underworld. Wave-based coop roguelikeFight waves of monsters and move deeper into the Underworld. Waves get harder, and some are special. Find the boss, defeat it, and descend to the next layer. Each layer has its own enemies, environment, story, and boss. Pick your route, stack perks, and go deeper to discover what the Underworld hides. Spend your points wiselyEach monster you kill gives you points. Spend them to open doors, buy perks and weapons, or try the Mystery Box. Doors change your route and how fast you reach shops, events, and the boss room. You can also save points and extract them into Undercoins, a permanent currency you use at the Tavern. In co-op, plan together: every point