X-Out (pronounced "cross out") is a horizontally scrolling shoot-em-up created by Rainbow Arts. It was released in 1990 for the Amiga, ZX Spectrum, Atari ST, Commodore 64, and Amstrad CPC.
Not so different from other games of the same genre, such as R-Type, X-Out has however a different scenario: underwater. You control a submarine and you have to reach the end of the five levels, beating all the enemies and the several bosses. At the end of each level, you will have the chance to access the shop, to buy new weapons, gadgets, or a new submarine.
The game received positive reviews, especially on the 8-bit versions. The soundtrack written by Chris Hülsbeck became very popular during the '90s. GamesNostalgia has packed for you the amazing Amiga version.