Abandonware games beginning with letter O sorted by popularity

There’s a certain audacity in naming a sequel Oh no! More Lemmings, as if the developers knew exactly what they were unleashing upon your already overworked brain. This 1991 ...

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) ...

If Oil Barons is Monopoly with attitude, Oil Imperium is its slightly more serious cousin who read a business textbook once and won’t let you forget it. Released in 1989, thi...

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 ...

A gentle adventure inspired by the animated film, Once Upon a Forest (1995, DOS) delivers an eco-friendly story wrapped in side-scrolling gameplay. You guide three tiny forest crea...

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 It was originally made for platforms like the Apple II, Atari 8-bit, Commodore 64, and MS-DOS, but was la...

Omnicron Conspiracy (1989, DOS) is a detective adventure wrapped in a cozy sci-fi blanket. You play as a Galactic Patrol agent solving crimes across alien worlds, all rendered in c...

Oil Barons takes the glamorous world of oil speculation—yes, glamorous—and turns it into a strategy game that feels like Monopoly went through a midlife crisis. Release...

If you’ve ever wanted to command a basketball team without having to actually dribble or break a sweat, Omni Play Basketball (1990, DOS) has your number. The game lets you ma...

Operation Bodycount sounds subtle, doesn’t it? Released in 1994, this shooter wastes no time letting you know exactly what it’s about: running around and, well, increas...

Omikron: The Nomad Soul (1999, Windows XP) is the kind of game that leans across the table and says, “What if we mashed every genre together and asked David Bowie to help?&rd...