Uncharted Waters 2 - New Horizons ROM Download for SEGA Genesis (Genesis) on Emulator Games. Play Uncharted Waters 2 - New Horizons game that is available in the United States of America (USA) version only on this website. Uncharted Waters 2 - New Horizons is a SEGA Genesis emulator game that you can download to your computer or play online within your browser. You can also download free ROMs such as Uncharted Waters, Super Street Fighter II - The New Challengers [b1] and Pac-Man 2 - The New Adventures as shown below. Uncharted Waters 2 - New Horizons works on all your devices in high quality.