Torpedo Alley is a single-player simulation game in which players control a submarine to send torpedoes and sink a convoy of ships, with scoring based on the size of the vessels destroyed. In this game, players navigate their submarine through a hostile environment where they must avoid detection by escort ships and anti-submarine aircraft, which pose a constant threat to their survival. It stands out with its emphasis on stealth and strategic timing, requiring players to dive and wait beneath the surface to evade enemy detection, adding a layer of tension and realism to the gameplay.