Sink Or Swim is a strategy puzzle game for the PC, Game Gear, Genesis, SNES and Amiga. It is made by Codemasters.
You play Kevin Codner, our aquatic hero. You hear that the SS Lucifer has suffered some sort of mishap (the exact nature of the incident is not made clear in the game. Somehow the captain is shown pulling the plug from his bath, and a fountain of water shoots up and starts flooding the ship.). Kevin gets into a yellow submarine and begin saving the passengers.