Obelix (1983) (Atari, Andrew Fuchs, Jeffrey Gusman, Dave Jolly, Suki Lee) (CX26117)
Off the Wall (Bizarre Breakout, Peasant King, Zip 'n' Zap) (1989) (Atari - Axlon) (CX26168)
Off Your Rocker (Joyboard) (1983) (Amiga) (3130) (Prototype)
Official Frogger, The (1983) (Starpath Corporation, Stephen Harland Landrum) (9) (AR-4105)
Oink! (1982) (Activision, Mike Lorenzen) (AX-023)
Omega Race (Booster Grip) (1983) (CBS Electronics) (4L 2737 0000)
Open, Sesame! - Sesam, Oeffne Dich (1982) (Bit Corporation) (PG204) (PAL)
Oscar's Trash Race (Kid's Controller) (Children's Computer Workshop) (1983) (Atari, Christopher H. Omarzu, Preston Stuart, Bruce Williams) (CX26101)
Othello (1981) (Atari, Ed Logg, Carol Shaw - Sears) (CX2639 - 49-75162)
Out of Control (1983) (Avalon Hill, Jean Baer, Bill 'Rebecca Ann' Heineman, Jim Jacob) (5005002)
Outlaw - Gunslinger (1978) (Atari, David Crane - Sears) (CX2605 - 6-99822, 49-75109)
