20,000 Leagues Under the Sea: Extended Edition is a single-player adventure game in which players navigate the underwater world, solve puzzles, and make choices to help Captain Nemo's captives escape from the Nautilus submarine. In this game, players take on the roles of Professor Pierre Aronnax, his assistant Conseil, and the harpoonist Ned Land, who are held captive by Captain Nemo as he explores the depths of the world's oceans. It stands out with its immersive underwater environments, narrative-driven gameplay inspired by Jules Verne's classic novel, and advanced puzzle-solving mechanics that challenge players to uncover secrets and avoid dangers lurking in the ocean's depths.