This game, to this day, is one of a kind in its niche. The nearest that comes close is Subnautica but it's still far from being close in terms of gameplay. Arcade style gameplay with different subs you could get, all kinds of different mission types, awesome music, all kinds of secrets to find, and tons of crimes against man and nature (pretty sure you aren't allowed to fire torpedoes at scuba divers or dolphins). One of a kind from a different era of gaming that still stands alone in its class today, which is a real shame and a perfect reason to preserve this game!