Abandonware games beginning with letter O sorted by popularity

One-Nil Soccer Manager is a text-based soccer management simulation game that was popular in the late 1980s and early 1990s. It was developed for various home computer systems, including DOS, Commodore 64 and Amiga. In One-Ni...

One Must Fall: 2097 is a fighting game released in 1994 by Epic MegaGames. Set in a futuristic world, the game features giant humanoid robots known as HARs (Human-Assisted Robots) controlled by human pilots. The storyline revolves...

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.

Oil's Well is an action-puzzle game released by Sierra On-Line in 1983/84. It was originally made for platforms like the Apple II, Atari 8-bit, Commodore 64, and MS-DOS, but was later ported to other systems. The game is set in an...

Before NBA 2K made your thumbs cry, there was One-on-One Basketball. You get to control either Larry Bird or Julius Erving in a thrilling display of 80s pixelated hoop dreams. The court looks like it was drawn with a ruler and thr...

Obitus is a role-playing video game developed by Psygnosis and released in 1991 for various platforms including the Amiga, Atari ST, and DOS. It combines elements of role-playing games (RPGs) and action-adventure games and is set ...