The player plays as Leo, a novice scuba diver, searching for treasure and learning about marine animal life.

It is a first person game set underwater.

The player takes the role of a scuba diver salvaging items from sunken ships and photographing underwater wildlife while either avoiding or confronting predators like sharks.

The game also features an inventory system for collected objects, healing items, weapons, and tools, as well as an above water town with shops and NPCs.

[1] In Japan, Famitsu gave it a score of 31 out of 40.