Games released in 1989 sorted by popularity

Omega is an abandoned science fiction themed strategy game developed and released by Origin Systems in 1989 for DOS, Amiga, Apple II, Atari ST, C64. Omega is a rare example of a programming game about robots.

The Third Courier is an abandoned (atypical) adventure / role playing game set in Berlin during the cold war era and, of course, it's a spy game. The Third Courier was developed by Manley Associates and released by Accolade in 1989 for DOS, but it was also published for Amiga, Apple IIgs, Atari ST platforms.

Space Harrier is a 3rd-person view rail-shooter developed by Sega in 1985. Space Harrier was a hit in the arcades, and later it was converted for a number of platforms, including DOS (4 years later!). The sequels - Space Harrier 3D and Space Harrier II - were never ported to DOS.