A submarine simulation in the vein of Silent Service, released by Electronic Arts for the PC and Amiga, and later ported to the Megadrive. Like Mega-Lo-Mania, the developers decided to do a straight conversion of the mouse cursor interface, which, using a joypad, is extremely tedious to negotiate. Uses the old "different room for each part of the interface trick populatrised by Wing Commander, and considered rather impressive at the time.