BoardGameArchiveClank! Sunken Treasures Expansion Guide
Clank Sunken Treasures explained: double-sided flooded board, swimming, new Dungeon Deck cards, Market board and how water changes escape timing.
Clank! Sunken Treasures moves the original deck-building adventure into flooded caverns. It includes a new double-sided board and cards built around underwater movement.
Clank! Sunken Treasures moves the original deck-building adventure into flooded caverns. It includes a new double-sided board and cards built around underwater movement.
Quick overview
Clank Sunken Treasures explained: double-sided flooded board, swimming, new Dungeon Deck cards, Market board and how water changes escape timing.
About this expansion guide
Clank! Sunken Treasures moves the original deck-building adventure into flooded caverns. It includes a new double-sided board and cards built around underwater movement.
What this guide covers
What Sunken Treasures adds
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Flooded routes
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Two new maps
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New Dungeon Deck cards
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What Sunken Treasures adds
- Double-sided game board
- 36 cards
- Market board
- 5 tokens
- Swimming/flooded-dungeon rules
Flooded routes
Water changes movement efficiency and makes some paths harder to traverse safely. A route that looks short geographically can require more preparation than an ordinary tunnel.
Two new maps
The physical expansion provides two sides of a new board, giving the original Clank! engine a different exploration puzzle.
New Dungeon Deck cards
The new cards add companions, monsters and tools designed for the underwater setting while mixing with the existing deck-building system.
Does it require base Clank!?
Yes. Dire Wolf lists the original Clank! base game as required.
Who should add it?
Sunken Treasures is one of the cleanest first Clank! expansions because it changes the map and movement puzzle without adding asymmetric character powers or raising player count.
Related guides
Publisher source
Expansion details checked September 2026.