| Region | Title | System | Version | Edition | Languages | Serial | Status |
|---|
 | The Operative: No One Lives Forever (Disc 1) | PC | | Game of the Year Edition | | | ![2 and more dumps from original media [!]](/images/status/green.png "2 and more dumps from original media [!]") |
| OutRun 2006: Coast 2 Coast (Disc 2) | PC | | Original |      | | |
| OutRun 2006: Coast 2 Coast (Disc 1) | PC | | Original | | | |
 | One Piece: Unlimited Cruise: Episode 1: Nami ni Yureru Hihou
ワンピース アンリミテッドクルーズ エピソード１ 波に揺れる秘宝 | WII | Rev 1 | Minna no Osusume Selection |  | RVL-ROUJ-JPN-B0 | |
 | One Must Fall 2097
One Must Fall | PC | | Covermount | | D.L.: M-8684-97 | |
 | Obscure II
옵스큐어 II | PS2 | 1.00 | Original | | SCKA 20114 |  |
 | Of Orcs and Men | PS3 | 01.01 | Original | | BLES-01586 | |
| One Piece: Grand Battle! 3
ＯＮＥ ＰＩＥＣＥ グランドバトル！３ | PS2 | 1.02 | Original | | SLPS 25315 | |
| Onimusha
鬼武者 | PS2 | 1.03 | Original, Mega Hits! | | SLPM 65010 … | |
| One Unit Whole Blood | PC | 1.21 | Original | | 04-16459CD1 | |
| Oh!PC 2000-nen 8-gatsugou Tokubetsu Furoku CD-ROM
Ｏｈ！ＰＣ ２０００年 8月号 特別付録ＣＤ－ＲＯＭ | PC | | | | OHPC-0008 | |
| Oh!PC 2000-nen 7-gatsugou Tokubetsu Furoku CD-ROM
Ｏｈ！ＰＣ ２０００年 7月号 特別付録ＣＤ－ＲＯＭ | PC | | | | OHPC-0007 | |
| Oh!PC 2000-nen 4-gatsugou Tokubetsu Furoku CD-ROM
Ｏｈ！ＰＣ ２０００年 ４月号 特別付録ＣＤ－ＲＯＭ | PC | | | | OHPC-0004 | |
| Oh!PC 2000-nen 6-gatsugou Tokubetsu Furoku CD-ROM
Ｏｈ！ＰＣ ２０００年 ６月号 特別付録ＣＤ－ＲＯＭ | PC | | | | OHPC-0006 | |
| Oh!PC 2000-nen 5-gatsugou Tokubetsu Furoku CD-ROM
Ｏｈ！ＰＣ ２０００年 5月号 特別付録ＣＤ－ＲＯＭ | PC | | | | OHPC-0005 | |
| Oh!PC 2000-nen 3-gatsugou Furoku CD-ROM
Ｏｈ！ＰＣ 2000年 3月号 付録ＣＤ－ＲＯＭ | PC | | | | OHPC-0003 | |
| Oh!PC 2000-nen 2-gatsugou Tokubetsu Furoku CD-ROM
Ｏｈ！ＰＣ 2000年 2月号 特別付録ＣＤ－ＲＯＭ | PC | | | | OHPC-0002 | |
| Oh!PC 2000-nen 1-gatsugou Tokubetsu Furoku CD-ROM
Ｏｈ！ＰＣ ２０００年 １月号 特別付録ＣＤ－ＲＯＭ | PC | | | | OHPC-0001 | |
| Oh!PC 1999-nen 9-gatsugou Tokubetsu Furoku CD-ROM
Ｏｈ！ＰＣ １９９９年 ９月号 特別付録ＣＤ－ＲＯＭ | PC | | | | OHPC-9909 | |
| Oh!PC 1999-nen 8-gatsugou Tokubetsu Furoku CD-ROM
Ｏｈ！ＰＣ １９９９年 8月号 特別付録ＣＤ－ＲＯＭ | PC | | | | OHPC-9908 | |
| Oh!PC 1999-nen 7-gatsugou Tokubetsu Furoku CD-ROM
Ｏｈ！ＰＣ １９９９年 ７月号 特別付録ＣＤ－ＲＯＭ | PC | | | | OHPC-9907 | |
| Oh!PC 1999-nen 6-gatsugou Tokubetsu Furoku CD-ROM
Ｏｈ！ＰＣ １９９９年 ６月号 特別付録ＣＤ－ＲＯＭ | PC | | | | OHPC-9906 | |
| Oh!PC 1999-nen 5-gatsugou Tokubetsu Furoku CD-ROM
Ｏｈ！ＰＣ １９９９年 ５月号 特別付録ＣＤ－ＲＯＭ | PC | | | | OHPC-9905 | |
| Oh!PC 1999-nen 4-gatsugou Tokubetsu Furoku CD-ROM (Disc B) (FreeBSD 2.2.8-RELEASE Packages & Applications)
Ｏｈ！ＰＣ １９９９年 ４月号 特別付録ＣＤーＲＯＭ | PC | | | | OHPC-9904B | |
| Oh!PC 1999-nen 4-gatsugou Tokubetsu Furoku CD-ROM (Disc A) (FreeBSD 2.2.8-RELEASE Install Disc)
Ｏｈ！ＰＣ １９９９年 ４月号 特別付録ＣＤーＲＯＭ | PC | | | | OHPC-9904A | |
| Oh!PC 1999-nen 3-gatsugou Tokubetsu Furoku CD-ROM
Ｏｈ！ＰＣ １９９９年 ３月号 特別付録ＣＤ－ＲＯＭ | PC | | | | OHPC-9903 | |
| Oh!PC 1999-nen 2-gatsugou Tokubetsu Furoku CD-ROM
Ｏｈ！ＰＣ １９９９年 ２月号 特別付録ＣＤ－ＲＯＭ | PC | | | | OHPC-9902 | |
| Oh!PC 1999-nen 11-gatsugou Tokubetsu Furoku CD-ROM
Ｏｈ！ＰＣ １９９９年 １１月号 特別付録ＣＤ－ＲＯＭ | PC | | | | OHPC-9911 | |
| Oh!PC 1999-nen 12-gatsugou Tokubetsu Furoku CD-ROM
Ｏｈ！ＰＣ １９９９年 １２月号 特別付録ＣＤ－ＲＯＭ | PC | | | | OHPC-9912 | |
| Oh!PC 1999-nen 10-gatsugou Tokubetsu Furoku CD-ROM
Ｏｈ！ＰＣ １９９９年 １０月号 特別付録ＣＤ－ＲＯＭ | PC | | | | OHPC-9910 | |
| Oh!PC 1999-nen 1-gatsugou Tokubetsu Furoku CD-ROM
Ｏｈ！ＰＣ １９９９年 １月号 特別付録ＣＤ－ＲＯＭ | PC | | | | OHPC-9901 | |
| Oh!PC 1998-nen 9-gatsugou Tokubetsu Furoku CD-ROM
Ｏｈ！ＰＣ １９９８年 ９月号 特別付録ＣＤーＲＯＭ | PC | | | | OHPC-9809 | |
| Oh!PC 1998-nen 8-gatsugou Tokubetsu Furoku CD-ROM
Ｏｈ！ＰＣ １９９８年 ８月号 特別付録ＣＤ－ＲＯＭ | PC | | | | OHPC-9808 | |
| Oh!PC 1998-nen 12-gatsugou Tokubetsu Furoku CD-ROM
Ｏｈ！ＰＣ １９９８年 １２月号 特別付録ＣＤ－ＲＯＭ | PC | | | | OHPC-9812 | |
| Oh!PC 1998-nen 11-gatsugou Tokubetsu Furoku CD-ROM
Ｏｈ！ＰＣ １９９８年 １１月号 特別付録ＣＤ－ＲＯＭ | PC | | | | OHPC-9811 | |
| Oh!PC 1998-nen 10-gatsugou Tokubetsu Furoku CD-ROM
Ｏｈ！ＰＣ １９９８年 １０月号 特別付録ＣＤ－ＲＯＭ | PC | | | | OHPC-9810 | |
| Official PlayStation 2 Magazine Demo 93 | PS2 | 1.01 | | | SCED-54418 | |
 | Onimusha 3 (Patch PL) | PC | | PC Game Bundle | | CENEGA 443/2006 | |
 | Overlord II | PC | | Classics | | MOVL2CDMP00 | |
| Oddworld: Munch's Oddysee | XBOX | | Original, Platinum Hits | | MS-001 | |
 | Offensive
Offensive War: The Ultimate Strategical Combat Game | PC | | Covermount | | | |
| Oddworld: Abe's Oddysee | PC | 2.0 | Covermount | | IB2G-ODDI5 | |
| The Operative: No One Lives Forever (Disc 2) | PC | 1.004 | Game of the Year Edition | | S0025037 | |
| The Operative: No One Lives Forever (Disc 1) | PC | 1.004 | Game of the Year Edition | | S0025036 | |
 | Ookami: Zekkeiban
大神 絶景版 | PS3 | 00.00 | Original, PlayStation 3 the Best, PlayStation 3 the Best (Reprint) | | BLJM 55061 … | |
| The Operational Art of War: Century of Warfare | PC | | Original | | | |
| The Operational Art of War: Vol. 1: 1939-1955 | PC | | | | | |
| Overlord II | PC | | Original | | MOVL2CDPL00 | |
 | Official PlayStation 2 Magazine Demo 87 | PS2 | 1.01 | | | SCED-54412 | |
| Once Upon a Forest | PC | | Original | | SANCFOR113094 | |
| Okudera Yasuhiko no Sekai o Mezase! Soccer Kids: Nyuumon-hen
奥寺康彦の世界をめざせ! サッカー・キッズ 入門編 | SS | 1.310 | Original | | T-26001G | |
| Official U.S. PlayStation Magazine Demo Disc 43 | PSX | EDC | | | SCUS-94634 | |
| Official U.S. PlayStation Magazine Demo Disc 35 | PSX | | | | SCUS-94596 | |
| Official U.S. PlayStation Magazine Demo Disc 31 | PSX | | | | SCUS-94499 | |
| Oak Mook 13: Ultrabook 3: Ura Game Dokuhon Furoku CD-ROM
ＯＡＫ ＭＯＯＫ１３ ウルトラブック３ 裏ゲーム読本 付録ＣＤ－ＲＯＭ | PC | | Original | | | |
| The OrganWise Guys: OrganWise-ology Game | PC | | Original | | | |
| Oddworld: Abe's Exoddus + Duke Nukem: Time to Kill + B-Movie | PSX | | Demo | | SLED-01608 | |
| OutRun 2006: Coast 2 Coast | PS2 | 1.02 | Original | | SLES-53998 | |
 | Orcs Must Die! | PC | | Original | | | |
| One Must Fall 2097 | PC | 2.1 | The Smile Edition | | CDR3016 | |
| One Must Fall 2097 | PC | | Original | | | |
| One Must Fall 2097 | PC | | Original | | EPOMF01 | |
| One Must Fall 2097 | PC | | Original | | EPOMF01 | |
| Ottifanten: Ostfriesen Lemminge in Not | PC | | Original | | | |
| Odoru Made in Wario
おどる メイド イン ワリオ | WII | | Original | | RVL-RODJ-JPN | |
| Overlord | PC | | Original | | MOVL1CDEU00 | |
| Operation Flashpoint: Dragon Rising | PC | 1.0 | Original | | MOFP2CDEU00 | |
 | ÖBB Railjet | PC | 1.0 | Original | | | |
| Of Light and Darkness: The Prophecy (Disc 3) | PC | | Dice | | | |
| Of Light and Darkness: The Prophecy (Disc 1) | PC | | Dice | | DMM 030689 | |
 | The Official Xbox 50 Best Games
20 Games to Play | XBOX | | | | IM-001 | |
| ON! DVD: On!ine Powerpak: Special Issue 1 | PC | | Original | | 123490 | |
| OnEscapee | ACD | | Original |          | | |
| The Outfit | XBOX360 | | Original | | TQ-2002 | |
 | Open Season
Colegas en el Bosque | XBOX360 | | Original, ESA Foundation Holiday Bundle | | US-2024 | |
| Online Start-Up Disc v3.0 | PS2 | 1.01 | | | PBPX-95242 | |
| Ore no Ryouri
俺の料理 | PSX | | Taikenban, Muryou Rental Taikenban | | PAPX 90089 … | |
| Orion Burger | MAC | | Original | | | |
| The Official Xbox Playable Cheats
Le Magazine Officiel Xbox: Hors-série Numéro 7 | XBOX | | Original | | IM-001 | |
 | Ovcegonki
Овцегонки | PC | 1.0.0.0 | Original |  | | |
 | Olivers äventyr: Drakens förbannelse | PC | | Original |  | 021120110 | |
| Outtrigger
アウトトリガー | DC | 1.008 | Original | | HDR-0118 | |
| O.R.B: Off-World Resource Base | PC | | Covermount | | | |
| Official Xbox Magazine Game Disc 49 | XBOX | | Original | | IM-078 | |
| Overlord: Raising Hell | PS3 | 01.00 | Original | | BLES-00257 | |
| Operation AirStorm | PC | | Original | | 0860140921 | |
| Open Season | XBOX360 | | Original | | US-2024 | |
| Operaciya "Plastilin" (Disc 2)
Операция "Пластилин" | PC | | 1C: Kollekciya igrushek | | | |
| Operaciya "Plastilin" (Disc 1)
Операция "Пластилин" | PC | | 1C: Kollekciya igrushek | | | |
| The Operative: No One Lives Forever (Disc 2) | PC | 1.004 | Game of the Year Edition, Game of the Year Edition (BestSeller Series), Game of the Year Edition (Covermount) | | JCPL11, S0026179, S0026696, S0026707 | |
| The Operative: No One Lives Forever (Disc 1) | PC | 1.004 | Game of the Year Edition (BestSeller Series) | | S0026706 | |
 | De Onderwateravonturen van Flipper & Co | PC | | Original | | 06DSILK36 | |
| Op Avontuur in het Piratenschip | PC | | Original | | 5989 | |
| Op Avontuur in de Vuurtoren | PC | | Original | | 5990 | |
| Op Avontuur in de Molen | PC | | Original | | 5991 | |
| Ollo en de Reuzentomaat | PC | | CD-ROM Toppers | | | |
| Ocha no Ma Battle
お茶の間バトル | PSX | | Bundled with Controller | | SLPM 86681 | |
| Online Arena: Disc 1: Edition 2000 | PC | | | | | |
| The Operational Art of War II: Modern Battles 1956-2000 | PC | 1.0 | Original | | | |
| Official Xbox Magazine Game Disc 78 | XBOX360 | | | | IM-2056 | |
