Silent Service is a submarine simulator video game designed by Sid Meier and published by MicroProse for various 8-bit home computers in 1985 and for 16-bit systems like the Amiga in 1987. A Nintendo Entertainment System version developed by Rare was published in 1989 by Konami in Europe and by Konami's Ultra Games subsidiary in North America. Silent Service II was released in 1990. Tommo purchased the rights to this game and published it online through its Retroism brand in 2015.

A submarine simulator is a video game in which the player commands a submarine. The usual form of the game is to go on a series of missions, each of which features a number of encounters where the goal is to sink surface ships and to survive counterattacks by destroyers. Submarine simulators are notable for the highly-variable pace of the game; it may take hours of simulated time to get into position to attack a well-defended convoy, and sub simulators typically include an option for players to adjust the ratio of real time to simulated time up and down as desired.