20,000 Leagues Under the Sea is a thematic exploration game inspired by Jules Verne’s classic adventure. Players become crew members aboard Captain Nemo’s submarine, the Nautilus, navigating between surface and depth maps in search of discovery, danger, and wonder. As they explore sunken ships, hunt marine creatures, and uncover the mysteries of Atlantis, they compete to earn points through smart choices and spatial strategy.

The game plays over sixteen simultaneous turns. Each round, players secretly choose one of three character rows and then move the Nautilus using the matching movement points. On their sheets, they draw discoveries and score points for islands in line of sight, seaweed forests, wrecks, treasures, and hunted cetaceans. When players select the same character, a hazard is triggered—unless one of them holds the rotating Conseil card, which grants temporary immunity.

With unique character bonuses, a dedicated solo mode, and layered end-game scoring, the game rewards careful planning and tactical movement. The double-sided map invites players to dive or surface at key moments, adding both depth and replayability. 20,000 Leagues Under the Sea offers an elegant, compact, and immersive adventure for 1–5 players.