UBOAT is a realistic submarine driving simulator during World War II. The player will take control of a huge ship to fight in an open game world with enemies. The first and most important task of the user is to monitor their wards, who are in the submarine. Minor characters can get tired, get hurt, feel bad, or need some help. You can always help them if you have medicine or other options. Gamers will be able to travel freely in a seamless world, fighting enemies, earning money and experience. In UBOAT, you can stumble upon union settlements and ports where you can upgrade the ship, or hire new characters to your team.