Science fiction games sorted by year, newest first

Xenon 2: Megablast is a classic shoot'em up developed by Bitmap Brothers and released by Image Works in 1990 for DOS and for a plethora of other systems. Xenon was good, Xenon 2 was far better. Compared to today standards Xenon 2 is perhaps a mediocre shoot 'em up, but at the time every shooter fan loved it. Plus, it was developed by Bitmap Brother...

Conflict Europe is an abandoned turn-based top-down strategy game set in Europe. The game was developed by Personal Software Services and released by Mirrorsoft in 1989 for DOS, Amiga and Atari ST.

Deathtrack is an abandoned racing vehicular combat game set in a post-apocalyptic North America. Deathtrack is a mix of high-speed racing and combat and was developed by Dynamix and released by Activision in 1989 for DOS.

Ghostbusters 2 is an abandoned action game based on the movie of the same name, set in New York. Ghostbusters 2 was developed by Dynamix and released by Activision in 1989. It's part of a series of games based on the popular Ghostbuster franchise, being the olny one developed for DOS.

Mines of Titan (also known as Mars Saga for other platforms) is an abandoned single-player RPG with a sci-fi setting (you're going to Mars!). Mines of Titan was developed by Westwood Studios and released by Infocom in 1989 for DOS, Apple II and Commodore 64.