Subzone: Multiplayer submarine wars

Subzone is a place where you can control a modern submarine. The quote says to rise from the depths of the ocean and sink enemy military and transport vehicles. It feels like a captain in this game. Control a submarine in the deep sea, explore the bottom, and look for sunken treasure. Climb closer to the surface and look at the area with a periscope. Aim at enemy ships. The quote is "sink transport vehicles, destroyers, cruisers, etc." There is a game with great graphics and controls.