Clank! Catacombs Underworld expansion

Descend into a deeper, high-stakes domain where the treasures are legendary and the risks are absolute. The Clank! Catacombs: Underworld Expansion invites daring thieves to plunge far beneath the standard catacombs into a mysterious, punishing netherworld. As the second official expansion to the acclaimed modular deck-building dungeon crawler, this box introduces entirely new mapping mechanics that test your greed and tactical nerve. The deeper you travel via hidden ladders, portals, and steep chutes, the more valuable the rewards become—but a single misstep or a loud noise could mean you never return to the surface.

Survival in the netherworld requires a completely new set of strategies. This expansion introduces undercoins, a specialized currency vital for staying alive in the abyss. Players must pay strict tolls at the start of their turns while navigating the deepest sectors; failure to do so will instantly alert the dungeon's horrors and add catastrophic noise to the bag. From dodging screeching harpies who hoard precious wealth to taking down the terrifying Underworld Guardian for massive point multipliers, your path to glory is packed with dangerous new choices.

The underworld completely alters how your deck evolves over the course of the game. Discover mystical towers to massively accelerate your movement speed, or stop at an underground lake to purge weaker cards and fine-tune your card engine. Along the way, players can unlock unique fate rooms to draw powerful game-changing cards that offer major scoring bonuses. You can even recruit an imp assistant to unlock the true potential of your secret tomes. It is a high-risk, high-reward modular experience engineered specifically for veteran thieves looking for a tougher, more complex challenge.