The crossword solution for the term 'Jules Verne-based game' is 'Nemos'. Nemos is a video game based on the works of Jules Verne, the French science fiction author. It was released in 2004 and follows the adventures of Captain Nemo and his crew aboard the Nautilus submarine. Players explore the depths of the ocean, battle giant sea monsters, and uncover ancient secrets. The game has been praised for its unique art style and engaging storyline.