Clank!: Sunken Treasures

Flooded dungeon boards and aquatic hazards push Clank!: Sunken Treasures into the territory of proven expansions that still see table time after years in the collection. The underwater mechanics—oxygen management, movement penalties, and new persistent threats—raise the baseline difficulty, making it a reliable pick for groups who have already mastered the base game. Its place as a long-standing expansion is secured by the way it transforms familiar systems into a tense, maritime crawl, rewarding players who want a sharper edge and more punishing risk-reward calculations. Physically, the expansion is efficient: a slim box, with all components designed to nest into the original game’s insert. The new boards are the only logistical wrinkle, causing a slight lid lift if you keep everything together, but it’s manageable for most storage systems. Setup and teardown are straightforward, fitting comfortably into a 15-minute prep window. With a 60-minute playtime, it’s best positioned as a main event for the night—enough depth and tension to anchor a session, but not so sprawling that it derails the schedule. Teaching this module requires a procedural approach. Before starting, reinforce the specifics of flooded caverns, oxygen tracking, and the altered movement rules—these are not intuitive for new players and can trip up even returning groups. Once the session is underway, the parallel play structure means you can step away to manage other tables; players interact mostly through the shared dungeon and deck, not direct conflict. The room energy stays focused but not rowdy, with most chatter centered on tactical choices and the mounting pressure of the underwater hazards. For veteran hosts, it’s a rewarding teach that pays off in player engagement and replay value.