| Game Name | System |
|---|
| Oekopoly v1.0D (1991)(SBU Muenchen)(de)[cr Elite] | Atari ST |
| Oelbaron | Atari 800 |
| Oelsuche (19xx)(Happy Computer)(de)[bas2boot] | Atari 800 |
| Off Road (Europe) | PSP |
| Off Road (Europe) (En,Fr,De,Es,It) | PS2 |
| Off Road Challenge (Europe) | N64 |
| Off Road Challenge (USA) | N64 |
| Off Road Challenge (v1.10) | MAME |
| Off Road Challenge (v1.30) | MAME |
| Off Road Challenge (v1.40) | MAME |
| Off Road Challenge (v1.50) | MAME |
| Off Road Challenge (v1.63) | MAME |
| Off Shore Warrior & Tensions (UK,F,G) | CPC |
| Off Shore Warrior (UK) (1989) | CPC |
| Off Shore Warrior (UK) (1989) [a1] | CPC |
| Off Shore Warrior (UK) (1989) [t1] | CPC |
| Off The Charts (Russian) | MAME |
| Off World Interceptor Extreme (U) | Saturn |
| Off Your Face (Bellfruit) (Scorpion 4) (set 1) | MAME |
| Off Your Face (Bellfruit) (Scorpion 4) (set 2) | MAME |
| Off Your Rocker (Joyboard) (1983) (Amiga) (3130) (Prototype) | 2600 |
| Off the Wall (2-player cocktail) | MAME |
| Off the Wall (2/3-player upright) | MAME |
| Off the Wall (Bizarre Breakout, Peasant King, Zip 'n' Zap) (1989) (Atari - Axlon) (CX26168) | 2600 |
| Off the Wall (Sente) | MAME |
| Off-World Interceptor (1994)(Crystal Dynamics)(Eu)[!][3DRM1241330 1] | 3DO |
| Off-World Interceptor Extreme (E) | Saturn |
| Off-World Interceptor Extreme (Japan) | PSX |
| Off-World Interceptor Extreme (USA) | PSX2PSP |
| Off-World Interceptor Extreme [NTSC-U] | PSX |
| Offensive CD (1996)(Ocean Software) | DOS |
| Office Yeo In Cheon Ha (version 1.2) | MAME |
| Official Everton FC Intelligensia, The | Amiga |
| Official Father Christmas (UK) (1989) | CPC |
| Official Father Christmas Game, The (E) | C64 Tapes |
| Official Father Christmas, The (1989)(Alternative Software) | ZX Spectrum (TAP) |
| Official Father Christmas, The (1989)(Alternative Software) | ZX Spectrum Z80 |
| Official Frogger, The (1983) (Starpath Corporation, Stephen Harland Landrum) (9) (AR-4105) | 2600 |
| Official PlayStation Magazine Best Games Ever 2000 (E) | PSX |
| Official PlayStation Magazine Platinum Special Demo (E) | PSX |
| Official Rangers Football Club Game, The | Amiga |
| Official U.S. PlayStation Magazine Demo Disc 01 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 01 [U] [SCUS-94189] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 02 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 02 [U] [SCUS-94198] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 03 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 03 [U] [SCUS-94210] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 04 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 04 [U] [SCUS-94211] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 05 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 05 [U] [SCUS-94212] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 06 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 06 [U] [SCUS-94213] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 07 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 07 [U] [SCUS-94214] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 08 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 08 [U] [SCUS-94215] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 09 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 09 [U] [SCUS-94216] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 10 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 10 [U] [SCUS-94217] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 11 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 11 [U] [SCUS-94218] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 12 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 12 [U] [SCUS-94219] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 13 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 13 [U] [SCUS-94275] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 14 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 14 [U] [SCUS-94276] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 15 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 15 [U] [SCUS-94277] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 16 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 16 [U] [SCUS-94278] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 17 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 17 [U] [SCUS-94279] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 18 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 18 [U] [SCUS-94280] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 19 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 19 [U] [SCUS-94281] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 20 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 20 [U] [SCUS-94282] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 21 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 21 [U] [SCUS-94429] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 22 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 22 [U] [SCUS-94430] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 23 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 23 [U] [SCUS-94431] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 24 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 24 [U] [SCUS-94432] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 25 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 25 [U] [SCUS-94433] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 26 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 26 [U] [SCUS-94434] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 27 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 27 [U] [SCUS-94435] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 28 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 28 [U] [SCUS-94436] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 29 [U] | PSX |
| Official U.S. PlayStation Magazine Demo Disc 29 [U] [SCUS-94437] | PS1 Demos |
| Official U.S. PlayStation Magazine Demo Disc 30 [U] | PSX |
