The adventurers have already plundered the Catacombs, but rumors of an ancient, hidden kingdom beneath them, filled with unspeakable riches, are too tempting to ignore. Clank! Catacombs - Underworld sends you to a new, underground area of the map, the Underworld, where the available artifacts are even more valuable and the creatures guarding them are more threatening.

Using the new entry tiles and Underworld tiles, players can enter the new area, facing new, challenging obstacles. This new area offers new dangers and greater rewards, introducing cards with even more powerful effects and secrets that require more skill and risk to obtain. The risk of making Clank! (causing noise) increases, as the Dragon is more restless than ever!

• 21 Underworld tiles
• 2 Entrance tiles (Underworld Entrance)
• 75 Dungeon cards (new creatures, items, and allies)
• 10 Key tokens
• 3 secret tokens
• 1 Artifact token
• 1 Dragon Marker token (for the Underworld)
• Rulebook

• Number of Players: 2–4 players (Requires the base game Clank! Catacombs)
• Age: 13+ years
• Playing Time: 45–90 minutes
• Manufacturer: Dire Wolf Digital
• Language: English Edition

• Integration: You add all the new components (tiles, cards, tokens) to the base game.
• The Underworld: When creating the map (by revealing tiles), if a player draws an Underworld Entrance tile, they place it normally. This tile leads to the Underworld.
• Underworld Tiles: When a player enters for the first time through an Underworld Entrance, they place a random Underworld tile. These tiles usually have more dangerous paths and stronger rewards (Artifacts, Keys, secrets).
• New Cards: The new Dungeon cards are shuffled into the existing deck and offer new challenges and strategies.
• Keys: The new Key Tokens can be used to unlock specific paths or activate abilities on some of the new Dungeon cards.
• Dragon Marker: An additional Dragon Marker is used for the Underworld area, enhancing the sense of danger once players start raiding this new area.