| Date ▾ | A-Z ▴ | |
|---|---|---|
| 26 January 2001 | Oni | |
| 25 January 2001 | Onimusha: Warlords | |
| 9 November 2000 | Operative: No One Lives Forever, The | |
| 10 November 1999 | Odium | |
| 30 October 1999 | Omikron: The Nomad Soul | |
| 25 June 1999 | Outcast | |
| 30 November 1998 | Oddworld: Abe's Exoddus | |
| 28 October 1997 | Overboard! | |
| 31 August 1997 | Oddworld: Abe's Oddysee | |
| 31 March 1997 | Outlaws | |
| 31 December 1996 | Obsidian | |
| 31 May 1996 | Original Strife: Veteran Edition, The | |
| 30 November 1994 | Operation Body Count | |
| 31 December 1992 | Outlander | |
| 31 December 1991 | Out of This World | |
| 31 December 1991 | Oh No! More Lemmings A stand-alone expansion for Lemmings [I/1991] | |
| 31 December 1989 | Oil Imperium | |
| 30 June 1987 | OutRun | |
| 31 December 1982 | Oregon Trail, The [I/1982] | |
| Outcast: Legacy of the Yods | ||
| Outlaws of the Old West |