AquaNox

AquaNox is a science fiction shooter game set in a violent and dangerous underwater world in the 27th century. As mercenary Emerald Dead Eye Flint, players command a team of fellow mercenaries, completing 34 mission-based battles against crazed mercenaries, military forces, and sea monsters. The game features stunning 3D graphics, individual and team-based combat, and a richly rendered underwater environment, making for a highly atmospheric and immersive experience.