Abandonware games beginning with letter O

Operation Europe: Path to Victory 1939-45 is a 1994 strategy game that covers the enormous scope of the Second World War and somehow expects the player to make sense of it all. The...

Operation Harrier is a 1990 action game centered on the famous Harrier jump jet, an aircraft known for its unusual ability to take off and land vertically. Players take control of ...

Operation Market Garden is a 1985 historical strategy game based on the ambitious Allied operation during the Second World War. Players take part in a campaign involving airborne f...

Operation Stealth is a 1990 adventure game that combines international intrigue, espionage, and the sort of dangerous missions where the protagonist probably should have taken a qu...

Operation Wolf is a 1989 arcade-style military shooter that puts the player directly into the middle of a dangerous rescue mission. The objective is simple enough: shoot enemies, p...

Operation: Inner Space is a 1994 Windows 3.x game that takes players on a strange journey through the microscopic world inside the human body. Rather than exploring distant planets...

Orbiter is a 1986 space simulation that gives players the opportunity to experience the challenges of operating a spacecraft in orbit. The game focuses on navigation, maneuvering, ...

Othello is a 1986 computer adaptation of the classic strategy board game in which two players compete to control the board by surrounding and flipping their opponent’s pieces. Th...

Oubliette is a 1983 role-playing game and an important early example of the dungeon-crawling tradition that would influence generations of computer RPGs. Players create characters,...

Outbound is a 2001 adventure game set in a world of science fiction, exploration, and strange environments that are considerably less welcoming than the average tourist destination...

Outcast is a 1999 science-fiction action-adventure that sends players to the alien world of Adelpha, a place where the scenery is beautiful, the inhabitants are mysterious, and the...

Outpost is a 1994 science-fiction strategy and management game that asks players to establish a human colony far from Earth, which immediately raises several questions about transp...

OutRun is a 1989 racing game that turns driving into a bright, fast, sun-soaked fantasy where the car is exotic, the roads are beautiful, and traffic laws are apparently a distant ...

Over the Net! is a 1990 DOS volleyball game that brings the sport to the computer with all the jumping, spiking, serving, and frantic attempts to stop the ball from landing on your...

Over the Reich is a 1996 strategy game set during the Second World War, focusing on aerial operations and the difficult decisions involved in planning military campaigns. Players c...

OverKill is a 1992 action game with a title that makes its intentions remarkably clear. Players are placed in a hostile environment and given the opportunity to deal with enemies u...

Overlord is a 1994 science-fiction action game that places the player in control of a powerful futuristic vehicle and sends them into a world where enemies, missions, and explosion...

Oxyd is a 1992 puzzle game built around a deceptively simple concept: move objects, solve problems, and somehow avoid making the situation much more complicated than it needs to be...