Deep Scan

Deep Scan is a 1979 submarine simulator video game developed and published by Sega for Japanese arcades; in North America, it was distributed by Sega/Gremlin. The player controls a battleship on the surface of the ocean attempting to destroy submarines below it, similar to games such as Periscope (1965), Sea Wolf (1976) and Depthcharge (1977). Some arcade cabinets also include Invinco, a Space Invaders clone released by Sega in 1979.

A port to the Atari 2600 was published in 1983 as Sub-Scan.