| Region | Title | System | Version | Edition | Languages | Serial | Status |
|---|
 | Official PlayStation 2 Magazine Demo 17 | PS2 | 1.00 | |      | SCED-50152 |  |
 | Official PlayStation 2 Magazine Demo 17 | PS2 | 1.00 | | | SCED-50152 … | ![2 and more dumps from original media [!]](/images/status/green.png "2 and more dumps from original media [!]") |
 | Official PlayStation 2 Magazine Demo 16 | PS2 | 1.00 | | | SCED-50736 | |
 | Official PlayStation 2 Magazine Demo 16
OPS2M DEMO 16/FRE | PS2 | 1.00 | | | SCED-50675 | |
| Official PlayStation 2 Magazine Demo 16 | PS2 | 1.00 | | | SCED-50151 | |
 | Official PlayStation 2 Magazine Demo 15 | PS2 | 1.00 | | | SCED-50708 | |
| Official PlayStation 2 Magazine Demo 15 | PS2 | 1.00 | | | SCED-50685 | |
 | Official PlayStation 2 Magazine Demo 15 | PS2 | 1.00 | | | SCED-50150 | |
| Official PlayStation 2 Magazine Demo 14 | PS2 | 1.00 | | | SCED-50622 | |
| Official PlayStation 2 Magazine Demo 14 | PS2 | 1.00 | | | SCED-50610 … | |
| Official PlayStation 2 Magazine Demo 14 | PS2 | 1.00 | | | SCED-50149 | |
| Official PlayStation 2 Magazine Demo 13
ops2m demo 13 | PS2 | 1.00 | | | SCED-50594 | |
| Official PlayStation 2 Magazine Demo 13
ops2m demo 13 | PS2 | 1.00 | | | SCED-50593 | |
| Official PlayStation 2 Magazine Demo 13 | PS2 | 1.00 | | | SCED-50148 | |
| Official PlayStation 2 Magazine Demo 12 | PS2 | 1.00 | | | SCED-50506 | |
| Official PlayStation 2 Magazine Demo 12
ops2m demo 12 | PS2 | 1.00 | | | SCED-50543 | |
| Official PlayStation 2 Magazine Demo 12 | PS2 | 1.00 | | | SCED-50147 | |
| Official PlayStation 2 Magazine Demo 11 | PS2 | 1.00 | | | SCED-50460 | |
| Official PlayStation 2 Magazine Demo 11
ops2m demo 11 | PS2 | 1.00 | | | SCED-50463 | |
| Official PlayStation 2 Magazine Demo 11 | PS2 | 1.10 | | | SCED-50146 | |
 | Official PlayStation 2 Magazine Demo 101
ops2m demo 101 eur | PS2 | 1.00 | | | SCED-55120 | |
| Official PlayStation 2 Magazine Demo 100 | PS2 | 1.00 | | | SCED-55119 | |
| Official PlayStation 2 Magazine Demo 10
ops2m demo 10 | PS2 | 1.00 | | | SCED-50404 | |
| Official PlayStation 2 Magazine Demo 10 | PS2 | 1.10 | | | SCED-50145 | |
| Official PlayStation 2 Magazine Demo 1 | PS2 | 1.00 | | | SCED-50065 | |
| Official Demo Disc Retail Edition February 02
official demo disc retail edition february 02 | PS2 | 1.02 | | | SCED-50732 | |
 | The Official Browser of Primagames.com | PC | | | | | |
| Oddworld: Abe's Exoddus + Duke Nukem: Time to Kill + Duke Nukem: 3D | PSX | | | | SLED-01655 | |
 | Operaciya Silent Storm (Disc 2)
Операция Silent Storm | PC | Aug 11 2003 | 1C: Igroteka |  | | |
| Operaciya Silent Storm (Disc 1)
Операция Silent Storm | PC | Aug 11 2003 | 1C: Igroteka | | | |
| Otverzhennye: Tajna temnoj rasy (Disc 2)
Отверженные: Тайна темной расы | PC | | 1C: Igrushki | | SNOW OT21 0110 IR | |
| Otverzhennye: Tajna temnoj rasy (Disc 1)
Отверженные: Тайна темной расы | PC | | 1C: Igrushki | | SNOW OT21 0110 IR | |
| On-Robot
Он-Робот | PC | 1.14SB | 1C: Igrushki | | | |
| O.R.B.: Orbital'nye Resursnye Bazy
О.Р.Б.: Орбитальные Ресурсные Базы | PC | 1.03 | 1C: Kollekciya igrushek | | | |
| Operaciya Silent Storm: Chasovye (Disc 2)
Операция Silent Storm: Часовые | PC | | 1С: Igroteka | | | |
| Operaciya Silent Storm: Chasovye (Disc 1)
Операция Silent Storm: Часовые | PC | | 1С: Igroteka | | | |
 | Omoi no Kakera: Close to
想いのかけら ‐Ｃｌｏｓｅ ｔｏ‐ | PS2 | 1.02 | 2800 Collection |  | SLPM 66385 | |
| Out of This World | 3DO | RE | 3DO Maniac Pack | | | |
| The Oregon Trail | WII | | 40th Anniversary Edition | | RVL-SORE-USA-B0 | |
| OutRun 2 | XBOX | | Beta | | | |
| Ousama Monogatari
王様物語 | WII | | Beta | | | |
| Onslaught | WII | | Beta | | | |
| Onimusha 2: Samurai's Destiny
鬼武者２ ＰＡＬ | PS2 | 1.00 | Beta | | SLES-50978 | |
| ObsCure: The Aftermath | WII | | Beta | | | |
| Online Connection CD: For the PlayStation Game Console | PSX | | Beta Trial Version 1.0 | | LSP-150500 … | |
| The Oregon Trail 3rd Edition: Pioneer Adventures (Disc 1) | PC | 1.2a | Bundle Version Compaq Presario OEM | | | |
| Outlaws (Disc 2) | PC | 1.0 Build 3 | Bundle Version Diamond OEM | | 644431 | |
| Outlaws (Disc 1) | PC | 1.0 Build 3 | Bundle Version Diamond OEM | | 644430 | |
| The Operative: No One Lives Forever (Disc 2) (In the Lounge with No One Lives Forever) | PC | | Bundle Version Micro-Star International OEM |  | CD-W581995-MSYZ2 | |
| The Operative: No One Lives Forever (Disc 1) | PC | | Bundle Version Micro-Star International OEM | | CD-W581995-MSYZ1, FXX08903223D1 | |
| Okiraku TownsGEAR
お気楽 ＴｏｗｎｓＧＥＡＲ | FMT | | Bundled with Book | | SBHW-00002 | |
| Ocha no Ma Battle
お茶の間バトル | PSX | | Bundled with Controller | | SLPM 86681 | |
| Online Start-Up Disc 4.0: Broadband Only | PS2 | 1.02 | Bundled with PS2 | | PBPX 95248 … | |
| Outlaws (Disc 2) | PC | 2.0 | Collection LucasArts | | | |
| Outlaws (Disc 1) | PC | 2.0 | Collection LucasArts | | | |
 | Outlaws (Disco 1) | PC | 2.0 | Collezione CD-Rom by C.T.O. | | LUC628 | |
| Outlaws (Disco 2) | PC | 2.0 | Collezione CD-Rom by C.T.O. | | LUC628 | |
| Outpost 2: Destini Sospesi | PC | 1.0 | Covermount | | | |
| Outcast (Disc 2) | PC | | Covermount | | | |
| Outcast (Disc 1) | PC | | Covermount | | | |
| Oro e Gloria: La Strada per El Dorado | PC | | Covermount | | | |
| Omnia Junior 2: Storia: Attività interattive | PC | | Covermount | | SIAE 0901PA | |
| Omerta: City of Gangsters | PC | | Covermount | | G1DVD0215 | |
 | Oksfordzka Encyklopedia Historii Świata. Tom II | PC | | Covermount |  | SELL 0108 | |
| Oksfordzka Encyklopedia Historii Świata | PC | | Covermount | | SELL 0103 | |
| Oil Tycoon 2 | PC | | Covermount | | | |
| Ognisty Podmuch: Fire Captain (Disc 2) (Dysk z Grą) | PC | | Covermount | | | |
| Ognisty Podmuch: Fire Captain (Disc 1) (Dysk Instalacyjny) | PC | | Covermount | | | |
| Offensive
Offensive War: The Ultimate Strategical Combat Game | PC | | Covermount | | | |
| Outward | PC | | Day One Edition | | 1024669LAINT, 103699 | |
| One Piece: Unlimited World Red | PS3 | 01.00 | Day One Edition | | BLUS-31427 … | |
| OutRun 2 | XBOX | | Demo | | SE-057 | |
| Outlaws (Demonstration Program) | PC | Demo 1.0 CD Build 3 | Demo | | 644230 | |
| OPSM Best Ever Ever Games Demo | PSX | | Demo | | SCED-02851 | |
| Operation Flashpoint: Cold War Crisis (Playable Demo) | PC | | Demo | | POPFCDUS40 | |
 | Open Season
Boog & Elliot | PC | 1.0 | Demo |    | | |
| Oops! Prank Party | WII | | Demo | | RVL-DPIE-USA-B0 | |
| One Must Fall 2097 | PC | 1.1 | Demo | | | |
| Omgaan met Steriele Medische Hulpmiddelen | CDI | | Demo | | | |
| Official U.S. PlayStation Magazine Demo Disc 87 | PS2 | 1.01 | Demo | | SCUS 97340 | |
| Official U.S. PlayStation Magazine Demo Disc 53 | PS2 | 1.00 | Demo | | SCUS 97176 | |
| Oddworld: Abe's Exoddus + Duke Nukem: Time To Kill + B-Movie | PSX | | Demo | | SLED-01608 | |
| Obbligato (Taikenban CD-ROM)
オブリガート 体験版CD-ROM | PC | | Demo | | | |
| O.D.T. | PSX | | Demo | | SLUS-90043 | |
| O.D.T. | PSX | | Demo | | SLED-01575 | |
| O.D.T. | PSX | | Demo | | SLED-01574 | |
| One Must Fall 2097 | PC | | Demo: JukeBox Collection | | | |
| O.D.T. | PC | | Dice | | DCG 005509 | |
| Operator's Side
オペレーターズ・サイド | PS2 | 1.02 | Doukonban, Doukonban: PlayStation 2 the Best | | SCPS 15038 … | |
| The Oregon Trail 3rd Edition: Pioneer Adventures | PC | 1.0 | DVD-ROM | | ORG811AE-DVD | |
| The Oregon Trail 5th Edition: Adventures Along the Oregon Trail | PC | 1.01E | Enhanced Education Version | | 480599-CD | |
| OutRun 2006: Coast 2 Coast | PC | | eXtra Klasyka XK HIT | | TS OCC PL | |
| Onmyou Taisenki: Byakko Enbu
陰陽大戦記 白虎演舞 | PS2 | 1.01 | EyeToy Camera Doukonban | | SLPS 20416 | |
| OIO: The Game: Enlarged | PC | | F*ckn' Best of Independent Games: Collection Vol. 1 | | | |
| The Operative: No One Lives Forever (Disc 1) | PC | 1.004 | Game of the Year Edition | | | |
| 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 | |
| The Operative: No One Lives Forever (Disc 1) | PC | 1.004 | Game of the Year Edition (BestSeller Series) | | S0026695 | |
| The Operative: No One Lives Forever (Disc 1) | PC | 1.004 | Game of the Year Edition (BestSeller Series) | | S0026178 | |
| The Operative: No One Lives Forever (Disc 1) | PC | 1.0.0.4 | Game of the Year Edition (Covermount) | | | |
| The Operative: No One Lives Forever (Disc 2) | PC | 1.004 | Game of the Year Edition (Xplosiv) | | EI-1685-2 | |
| The Operative: No One Lives Forever (Disc 1) | PC | 1.004 | Game of the Year Edition (Xplosiv) | | EI-1685-1 | |
 | 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) | | S0026179, S0026696 | |
| Overwatch | PC | | Game of the Year Edition, Legendary Edition | | 73052010US, S7302210 | |
| Oxyd Magnum! Gold Edition | PC | | Game-Pack 3 | | 80227 | |
| OutRun 2006: Coast 2 Coast | PC | | Gamer's Choice | | THQ70690 | |
| Operation | PC | | General Mills | | | |
| Operation | PC | | General Mills | | AM0703R71 | |
 | Operation | PC | | General Mills | | | |
| Ouran Koukou Host Club
桜蘭高校ホスト部 | PS2 | 1.01 | Genteiban | | SLPM 66737 | |
| O.G.A Onigokko Royal: Hunter wa Field de Koi o Suru
Ｏ＊Ｇ＊Ａ 鬼ごっこロワイアル ハンターは孤島（フィールド）で恋をする | PSP | 1.01 | Genteiban | | ULJM 06298 | |
| OutRun 2006: Coast 2 Coast | PC | | GSP White Label: Reload | | 1673A | |
| Over Drivin' DX: Rally Edition
オーバードライビンＤＸ ラリーエディション | PSX | | Hibaihin | | SLPM 80032 | |
| Odo Odo Oddity
おどおど おっでぃ | PSX | | Hibaihin | | SLPM 80075 | |
| Option: Tuning Car Battle
Ｏｐｔｉｏｎ チューニングカーバトル | PSX | | Highlight-ban | | SLPM 80203 | |
| One Step Beyond | PC | | Hit Squad: Regenerator | | | |
| One Two Smash: Tanoshii Tennis
ワン・ツー スマッシュ たのしいテニス | PSX | | Honkakuha de 1300 | | SLPS 02585 | |
| Open Kart | PC | | I Videogiochi del "Giornalino" | | | |
| Order of War: Stolknovenie
Order of War: Столкновение | PC | | Igromaniya: Vybor redakcii | | | |
| Otona no Gal-jong: Kimi ni Haneman!
おとなのギャル雀 ～きみにハネ満！～ | PS2 | 1.03 | Jaleco the Best | | SLPM 62549 | |
| Operation Flashpoint: Red River | PC | | Kakaku Kaiteihan | | FBG028W000A10 | |
| Off-World Interceptor Extreme
オフワールド・インターセプター エクストリーム | SS | 1.000 | Ketteiban | | T-15901G | |
| Official Demo Disc 1: Retail Edition November 01 | PS2 | 1.04 | Kiosk Demo | | SCED-50615 | |
 | Ori and the Blind Forest: Definitive Edition | PC | 5.3.2.9582331 | Limited Edition | | | |
| Ore no Imouto Maker EX: Imouto to Koishiyo Portable
俺の妹めいかあＥＸ いもうとと恋しよっ ぽ～たぶる | PSP | 1.01 | Limited Edition | | ULJS 00357 | |
| Oha Suta Produce! Gentei Collabo Game Disc!!
おはスタプロデュース！限定コラボゲームディスク！！ | WII | | Limited Edition | | RVL-DCHJ-JPN | |
| Oddworld: Abe's Oddysee: New 'n' Tasty! | PS3 | 01.00 | Limited Edition |  | BLUS-31621 | |
| Outcast (Disc 3) | PC | | Limitierte Sonderausgabe | | OUTCAPC520/A3 | |
| Outcast (Disc 2) | PC | | Limitierte Sonderausgabe | | OUTCAPC520/A2 | |
| Outcast (Disc 1) | PC | | Limitierte Sonderausgabe | | OUTCAPC520/A1 | |
| Otome-teki Koi Kakumei: Love Revo!!
乙女的恋革命★ラブレボ！！ | PS2 | 1.03 | Love Revo Box | | SLPM 66237 | |
| Outlaws (Disco 1) | PC | 1.0 | LucasArts Classic | | 41175.101.IT | |
| Outlaws (Disco 2) | PC | 1.0 | LucasArts Classic | | 41175.102.IT | |
| Outlaws (Disc 2) | PC | 2.0 | LucasArts Classics | | 3000009.102.UK | |
| Outlaws (Disc 1) | PC | 2.0 | LucasArts Classics | | 3000009.101.UK | |
| The Operative: No One Lives Forever (Disc 1) (Game Disc) | MAC | 1.004 | MacPlay | | | |
| Official U.S. PlayStation Magazine Demo Disc 51 | PS2 | 1.00 | Magazine Bundle | | SCUS 97165 | |
| Official Sega Dreamcast Magazine: Special Edition Preview PC CD-ROM | PC | | Magazine Bundle | | | |
| The Oni Taiji!!: Mezase! Nidaime Momotarou
Ｔｈｅ鬼退治！！ 目指せ！二代目桃太郎 | PSX | | Major Wave | | SLPM 86989 | |
| Ostrich Runner | PC | | Microforum | | | |
| 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 Piece: Pirates Carnival
ワンピース パイレーツカーニバル | PS2 | 1.01 | Multi Tap (SCPH-10090) Doukonban | | SLPS 25583 | |
| One Piece: Pirates Carnival
ワンピース パイレーツカーニバル | PS2 | 1.01 | Multi Tap (SCPH-70120) Doukonban | | SLPS 25584 | |
| Otona no Asobi
おとなの遊び | PSX | | Nichibutsu Collection 2000 | | SLPS 02459 | |
| OMSI: Der Omnibussimulator | PC | 1.04 | OMSI Bundle | | | |
| OnHand Sports Games / Sega Swirl Lite | PALM | PDA105-01 | OnHand Double Pack (Sports Games/Astrologer) | | PDA105-01 | |
| OnHand Complete Astrologer
OnHand Complete Astrologer: Horoscopes & More! | PALM | PDA108-01 | OnHand Double Pack (Sports Games/Astrologer) | | PDA108-01 | |
| Oz: The Magical Adventure | PC | | Original | | | |
| Oz no Mahoutsukai: Another World: Rung Rung
オズの魔法使い ～Ａｎｏｔｈｅｒ Ｗｏｒｌｄ～ ルングルング | PSX | | Original | | SLPS 02335 | |
 | Oyunlarla Dil Bilgisi Oyunlarla Matematik | PC | | Original |  | | |
| Oyako Entertainment Series: TV Kamishibai Vol. 1
親子エンタテインメントシリーズ ～てれび紙芝居Ｖｏｌ．１～ | PSX | | Original | | SLPM 86393 | |
| Oyaji no Jikan: Nee-chan Tsuri Iku de!
おやじの時間 ね～ちゃん釣り行くで！ | PSX | | Original | | SLPS 02590 | |
| De Overval: Over Dwangmiddelen en Getuigenverhoor | CDI | | Original | | ovrvl 01 | |
| OverTop
オーバートップ | NGCD | | Original | | ADCD-011 | |
| Overclocked: Una Storia di Violenza | PC | 1.1 | Original | | | |
| Over the Monochrome Rainbow featuring Shogo Hamada | PS2 | 1.40 | Original | | SLPM 65271 | |
| Over G: Energy Airforce | XBOX360 | | Original | | TI-2001 | |
| Over G Fighters | XBOX360 | | Original | | TI-2001 | |
| Over Drivin' III: Hot Pursuit
オーバードライビンⅢ | PSX | | Original | | SLPS 01593 | |
 | Over 350 Solitaire Games | PC | | Original | | | |
| Over 1000 Games: The Complete Encyclopedia of Games (Disc 2) | PC | | Original | | | |
| Over 1000 Games: The Complete Encyclopedia of Games (Disc 1) | PC | | Original | | | |
| Outwars (Disc 2) | PC | 1.0 | Original | | 0298 Part No. X03-57509 | |
| Outwars (Disc 1) | PC | 1.0 | Original | | 0298 Part No. X03-63527 | |
| Outwars (Disc 2) | PC | 1.0 | Original | | 0398 Artikelnr. X00-14040 DE | |
| Outwars (Disc 1) | PC | 1.0 | Original | | 0398 Artikelnr. X00-14039 DE | |
| Outwars (Disc 2) | PC | 1.0 | Original | | 0298 Part No. X03-57509 | |
| Outwars (Disc 1) | PC | 1.0 | Original | | 0298 Part No. X03-63527 | |
| Outtrigger | DC | 1.003 | Original | | 51102 | |
| Outtrigger
アウトトリガー | DC | 1.008 | Original | | HDR-0118 | |
| Outtrigger | DC | 1.001 | Original | | MK-51102-50 | |
| OutRun 2006: Coast 2 Coast | XBOX | | Original | | SE-136 | |
| OutRun 2006: Coast 2 Coast (Disc 2) | PC | | Original | | | |
| OutRun 2006: Coast 2 Coast (Disc 1) | PC | | Original | | | |
| OutRun 2006: Coast 2 Coast | PSP | 1.03 | Original | | ULUS-10064 | |
| OutRun 2006: Coast 2 Coast | PS2 | 1.01 | Original | | SLUS 21274 | |
 | OutRun 2006: Coast 2 Coast | PSP | 1.00 | Original | | ULKS 46087 | |
| OutRun 2006: Coast 2 Coast | PS2 | 1.02 | Original | | SLES-53998 | |
| OutRun 2006: Coast 2 Coast | PC | 1.0 | Original | | SEGA-PC029 | |
 | OutRun 2 | CHIHIRO | 2.000 | Original | | GDX-0004A | |
| OutRun 2 | XBOX | | Original | | SE-054 | |
| OutRun 2 | XBOX | | Original | | SE-054 | |
| Outrage | PC | | Original | | | |
| Outpost 2: Geteilte Bestimmung | PC | 1.0 | Original | | S0011248 | |
| Outpost 2: Divided Destiny | PC | 1.2.0.5 | Original | | | |
| Outpost 2: Divided Destiny | PC | 1.2.0.5 | Original | | | |
| Outpost 2: Divided Destiny | PC | 1.0 | Original | | S0011246 | |
| Outpost | PC | | Original | | S725430 | |
| Outpost | PC | | Original | | S 390121012ZZZ | |
| Outpost | PC | | Original | | S390021012ZZ2 | |
| Outlive | PC | 1.01 | Original | | | |
| Outlive | PC | 1.01 | Original | | | |
| Outlaws: Die Gesetzlosen (Disc 2) | PC | 1.1.1 | Original | | | |
| Outlaws: Die Gesetzlosen (Disc 1) | PC | 1.1.1 | Original | | | |
 | Outlaws: Cidade Sem Lei (Disc 2) | PC | 2.0 | Original | | 0806.06.0 | |
| Outlaws: Cidade Sem Lei (Disc 1) | PC | 2.0 | Original | | 0806.05.0 | |
| Outlaws (Disc 2) | PC | 1.0 Build 3 | Original | | 9511831 | |
| Outlaws (Disc 1) | PC | 1.0 Build 3 | Original | | 9511830 | |
| Outlaws (Disc 2) | PC | 1.0 | Original | | | |
| Outlaws (Disc 1) | PC | 1.0 | Original | | | |
| Outlaws (Disc 2) | PC | | Original | | | |
| Outlaws (Disc 1) | PC | | Original | | | |
| Outlaws (Disc 2) | PC | 1.0 | Original | | 9511831 | |
| Outlaws (Disc 1) | PC | 1.0 | Original | | 9511830 | |
| Outlaw Volleyball: Red Hot | XBOX | | Original | | SS-003 | |
| Outlaw Volleyball Remixed | PS2 | 1.02 | Original | | SLUS-21049 | |
| Outlaw Volleyball Remixed | PS2 | 1.01 | Original | | SLES-53138 … | |
| Outlaw Volleyball | XBOX | | Original | | SS-003 | |
| Outlaw Volleyball
아웃로 발리볼 | XBOX | | Original | | SS-003 | |
| Outlaw Volleyball | PS2 | 1.01 | Original | | SLES-52259 | |
| Outlaw Volleyball | XBOX | | Original | | SS-007 | |
| Outlaw Tennis | PS2 | 1.01 | Original | | SLUS-21190 | |
| Outlaw Tennis | XBOX | | Original | | TT-118 | |
| Outlaw Tennis | PS2 | 1.01 | Original | | SLES-53490 | |
| Outlaw Tennis | XBOX | | Original | | TT-118 | |
| Outlaw Golf: Holiday Golf | XBOX | | Original | | SS-005 | |
| Outlaw Golf: 9 More Holes of X-Mas | XBOX | | Original | | SS-006 | |
| Outlaw Golf: 9 Holes of X-Mas | XBOX | | Original | | VU-027 | |
| Outlaw Golf 2 | PS2 | 1.02 | Original | | SLUS-21030 | |
| Outlaw Golf 2 | XBOX | | Original | | TT-023 | |
| Outlaw Golf 2 | PS2 | 1.01 | Original | | SLES-52965 | |
| Outlaw Golf 2 | XBOX | | Original | | TT-023 | |
| Outlaw Golf | XBOX | | Original | | VU-016 | |
| Outlaw Golf | GC | | Original | | DL-DOL-GOFE-USA | |
| Outlaw Golf | PS2 | 1.01 | Original | | SLES-51926 | |
| Outlaw Golf | XBOX | | Original | | TM-006 | |
| Outlaw Golf | GC | | Original | | DL-DOL-GOFP-EUR-01 | |
| Outlaw Golf | XBOX | | Original | | TM-006 | |
| Outlaw Golf | PC | | Original | | RM-OUTGOLF-UK | |
| Outlast: A Reading for Information Game | PC | | Original | | HH824 | |
| The Outforce | PC | 1.0.0.0 | Original | | | |
| The Outfit | XBOX360 | | Original | | TQ-2002 | |
| The Outfit | XBOX360 | | Original | | TQ-2002 | |
| Outer World
アウター・ワールド | 3DO | | Original | | FZ-SJ3451 | |
| Outer Ridge | PC | 1.0 | Original | | SPI004 | |
| Outdoor Wander Land
アウトドアワンダーランド | MAC | | Original | | ILL-940715 | |
| Outdoor Action Double Pack
Outdoor Action Double Pack: Remington Great American Bird Hunt and Shimano Xtreme Fishing | WII | | Original | | RVL-SFHE-USA-B0 | |
| Outcry (Disc 2)
Outcry: The Dawn | PC | Version DPV 1.0 | Original | | PCO596CD | |
| Outcry (Disc 1)
Outcry: The Dawn | PC | Version DPV 1.0 | Original | | PCO596CD | |
| Outcast (Disc 2) | PC | | Original | | 42831-9110TC | |
| Outcast (Disc 1) | PC | | Original | | 42831-9110TC | |
| Outcast (Disc 1) | PC | | Original | | OUTCAPC52F/A1 | |
| Outcast (Disc 2) | PC | | Original | | OUTCAPC52G/A2 | |
| Outcast (Disc 1) | PC | | Original | | OUTCAPC52G/A1 | |
| Outcast | PC | | Original |  | | |
| Outbreaker | PC | | Original | | | |
| Out of This World | 3DO | | Original | | | |
| Out Live: Be Eliminate Yesterday
アウトライブ Ｂｅ Ｅｌｉｍｉｎａｔｅ Ｙｅｓｔｅｒｄａｙ | PSX | | Original | | SLPS 00746 | |
| Ousama Monogatari
王様物語 | WII | | Original | | RVL-RO3J-JPN-B0 | |
| Ousama Game (Disc 2) (Momo Disc)
王様げーむ | SS | 1.001 | Original | | T-21904G | |
| Ousama Game (Disc 1) (Ichigo Disc)
王様げーむ | SS | 1.001 | Original | | T-21904G | |
| Ouran Koukou Host Club
桜蘭高校ホスト部 | PS2 | 1.01 | Original | | SLPM 66738 | |
| Our Worst Fears: Die Blumen des Todes | PC | | Original | | | |
| Our House: Party! | WII | | Original | | RVL-SHPE-USA-B0 | |
| Our House featuring The Family Circus | VIS | | Original | | 25-6146 | |
| Our Graduation: Mahjong de Pon! Hanafuda de Koi! (Disc 2) (Hanafuda de Koi!)
アワー グラデュエーション ～麻雀でポン 花札でコイ～ | PSX | | Original | | SLPS 02577 | |
| Our Graduation: Mahjong de Pon! Hanafuda de Koi! (Disc 1) (Mahjong de Pon!)
アワー グラデュエーション ～麻雀でポン 花札でコイ～ | PSX | | Original | | SLPS 02576 | |
| Oumagatoki 2
逢魔が時２ | PSX | | Original | | SLPS 03272 | |
| Ouka Houshin: Ouka Sakishi Toki
央華封神 ～央華咲きし刻～ | DC | 1.003 | Original | | T-38704M | |
| Oujisama Lv1.5: Oujisama no Tamago
王子さまＬｖ１．５ ～王子さまのたまご～ | PSX | | Original | | SLPS 03534 | |
| Otto's Ottifanten | PC | | Original | | | |
| Otto Bock: Orthopädische Industrie: Neuheiten Vol. 2: Stand Januar 1997 | CDI | | Original | | | |
| Otousan no Tame no Tsuri: Fly Fishing-hen
お父さんのための釣り フライ フィッシング編 | PC | | Original | | TFF-058-1 | |
| Otousan no Tame no Hanafuda Tenkomori
お父さんのための花札 てんこもり | PC | | Original | | THT-063 | |
| Otostaz
오토스타츠 | PS2 | 1.01 | Original |  | SCPS 56004 | |
| Otostaz
オトスタツ | PS2 | 1.00 | Original | | SCPS 11024 | |
 | Otostaz
蓋蓋樂 | PS2 | 1.00 | Original |  | SCPS 55023 | |
| Otorva v shkole
Оторва в школе | PC | | Original | | | |
| Otona no Gal-jong 2: Koishite Bai Man!
おとなのギャル雀２ 恋して倍満！ | PS2 | 1.01 | Original | | SLPM 66194 | |
| Otomedius Gorgeous!
オトメディウス ゴージャス! | XBOX360 | | Original | | KN-2030 | |
| Otomedius Excellent!
オトメディウスＸ（エクセレント！） | XBOX360 | | Original | | KN-2074 | |
| Otomedius Excellent | XBOX360 | | Original | | KN-2106 | |
| Otomedius (System Disc)
オトメディウス | KEA | JAA | Original | | GGGJAA01 | |
| Otomedius (Application Disc 1)
オトメディウス | KEA | JAA | Original | | GGGJAA02 | |
| Otomedius (Application Disc 2)
オトメディウス | KEA | JAA | Original | | GGGJAA03 | |
| Otome wa Oanesama Boku ni Koi Shiteru Portable
乙女はお姉さまに恋してる Ｐｏｒｔａｂｌｅ | PSP | 1.02 | Original | | ULJM 05647 | |
| Otome wa Boku ni Koishiteru
乙女はお姉さまに恋してる | PS2 | 1.05 | Original | | SLPM 66165 | |
| Otome no Jijou
乙女の事情 | PS2 | 1.01 | Original | | SLPM 66508 | |
| Otogi: Myth of Demons | XBOX | | Original | | FS-002 | |
| Otogi: Myth of Demons | XBOX | | Original | | FS-002 | |
| Otogi Story: Tenshi no Shippo
おとぎストーリー ～天使のしっぽ～ | PSX | | Original | | SLPS 03531 | |
| Otogi 2: Immortal Warriors | XBOX | | Original | | FS-004 | |
| Otogi 2: Immortal Warriors | XBOX | | Original | | FS-004 | |
| Otogi
오토기 | XBOX | | Original | | YB-002 | |
| Otogi
Ｏ・ＴＯ・ＧＩ ～御伽～ | XBOX | | Original | | FS-002 | |
| Oto to E no Deru Eigo Jisho No. 4: Nandemo Illust Eigo Jiten Part 2
音と絵の出る英語辞書 Ｎｏ．４ 「なんでもいらすとえいごじてん Ｐａｒｔ ２」 | FMT | | Original | | HMB-170 | |
| Oto to E no Deru Eigo Jisho No. 3: Nandemo Illust Eigo Jiten
音と絵の出る英語辞書 Ｎｏ．３ 「なんでもいらすとえいごじてん」 | FMT | | Original | | HMB-131 | |
| Oto to E no Deru Eigo Jisho No. 2: English in Dream
音と絵の出る英語辞書 Ｎｏ．２ 「Ｅｎｇｌｉｓｈ ｉｎ Ｄｒｅａｍ」 | FMT | | Original | | HMB-129 | |
| Other Life Azure Dreams
アザーライフ アザードリームス | PSX | | Original | | SLPM 86047 | |
| Othello CD-ROM | PC | | Original | | | |
| Othello | PC | | Original | | 99011 | |
| Othello | PC | | Original | | | |
| Othello | CDI | | Original | | 810 0163 | |
| Othelanian Wars
オセラニアン・ウォーズ | PC | | Original | | | |
| Otenki Kororin
お天気ころりん | PSX | | Original | | SLPM 87047 | |
| Otchayannye domoxozyajki (Disc 3) (Igrovoj disk)
Отчаянные домохозяйки | PC | | Original | | | |
| Otchayannye domoxozyajki (Disc 2) (Ustanovochnyj disk)
Отчаянные домохозяйки | PC | | Original | | | |
| Otchayannye domoxozyajki (Disc 1) (Ustanovochnyj disk)
Отчаянные домохозяйки | PC | | Original | | | |
| Ostrov Nanda
Остров Нанда | PC | 1.000 | Original | | | |
| Ostrov e'rotiki
Остров эротики | PC | | Original | | | |
| Osterspiele-Box
Oster Spielebox | PC | | Original | | | |
 | Osterreichs Werbepreise: Vier Highlights | CDI | | Original | | | |
| Ost-Indskaya kompaniya: Zolotoe izdanie
Ост-Индская компания: Золотое издание | PC | | Original | | | |
| Osouji Sentai Clean Keeper H
お掃除戦隊 くりーんきーぱーはいぱーＨ | PS2 | 1.01 | Original | | SLPM 55220 | |
| Osouji Sentai Clean Keeper
お掃除戦隊くりーんきーぱー | WII | | Original | | RVL-RC5J-JPN | |
| Oshiete! Popotan
おしえて！ ぽぽたん | PS2 | 1.02 | Original | | SLPM 65535 | |
| Oshiete Noobow
おしえて ぬ～ぼ～ | FMT | | Original | | HMF-110 | |
| Oshidashi Zintrick ~ ZinTricK
押し出しジントリック | NGCD | | Original | | ADCD-104 | |
| OSHA MHE Forklifts
OSHA MHE Forklifts: PFS Interactive Training | CDI | | Original | | | |
 | Oscar the Balloonist: Discovers the Farm
小小探險家奧斯卡 農場奇遇記 | PC | | Original | | | |
| Osaka Naniwa Matenrou
大阪ナニワ摩天楼 | PSX | | Original | | SLPS 02013 | |
| Osaka City
大阪 | PHOTO-CD | | Original | | | |
| Oro y Gloria: La Ruta hacia El Dorado | PSX | | Original | | SLES-03187 | |
| Oro e Gloria: La Strada per El Dorado | PSX | | Original | | SLES-03186 | |
| Orly's Draw-A-Story | PC | | Original | | | |
| The Orion Conspiracy | PC | 1.01 | Original | | | |
| Original Xbox Game Support: December 2005 (1.2)
Prise en charge des jeux Xbox d'origine: Décembre 2005 (1.2) | XBOX360 | | Original | | | |
| Original War (Disc 2) | PC | 1.02 | Original | | CD-W95-V006-IT2 | |
| Original War (Disc 1) | PC | 1.02 | Original | | CD-W95-V006-IT1 | |
| The Original Mulan
花木兰 | PC | | Original | | | |
| Orgaslave (Side-1)
オルガスレイブ | PC | | Original | | H PT 003-1 | |
| Orgaslave (Side-2)
オルガスレイブ | PC | | Original | | H PT 003-2 | |
| Oretachi ni Tsubasa wa Nai
俺たちに翼はない | PS3 | 01.01 | Original | | BLJM 61018 | |
| Oretachi Geesen Zoku: Yie Ar Kung Fu
オレたちゲーセン族 イー・アル・カンフー | PS2 | 1.01 | Original | | SLPM 62696 | |
| Oretachi Geesen Zoku: Trio the Punch
オレたちゲーセン族 トリオ・ザ・パンチ | PS2 | 1.02 | Original | | SLPM 62745 | |
| Oretachi Geesen Zoku: Time Pilot
オレたちゲーセン族 タイムパイロット | PS2 | 1.01 | Original | | SLPM 62644 | |
| Oretachi Geesen Zoku: Thunder Cross
オレたちゲーセン族 サンダークロス | PS2 | 1.02 | Original | | SLPM 62744 | |
| Oretachi Geesen Zoku: Terra Cresta
オレたちゲーセン族 テラクレスタ | PS2 | 1.04 | Original | | SLPM 62661 | |
| Oretachi Geesen Zoku: Super Volleyball
オレたちゲーセン族 スーパーバレーボール | PS2 | 1.04 | Original | | SLPM 62660 | |
| Oretachi Geesen Zoku: Sonic Wings
オレたちゲーセン族 ～ソニックウィングス～ | PS2 | 1.01 | Original | | SLPM 62646 | |
| Oretachi Geesen Zoku: Scramble
オレたちゲーセン族 スクランブル | PS2 | 1.01 | Original | | SLPM 62626 | |
| Oretachi Geesen Zoku: Rabio Lepus
オレたちゲーセン族 ラビオ レプス | PS2 | 1.00 | Original | | SLPM 62707 | |
| Oretachi Geesen Zoku: Quarth
オレたちゲーセン族 クォース | PS2 | 1.02 | Original | | SLPM 62704 | |
| Oretachi Geesen Zoku: Pooyan
オレたちゲーセン族 プーヤン | PS2 | 1.01 | Original | | SLPM 62731 | |
| Oretachi Geesen Zoku: Nekketsu Koukou Dodgeball-bu
オレたちゲーセン族 熱血高校ドッジボール部 | PS2 | 1.00 | Original | | SLPM 62705 | |
| Oretachi Geesen Zoku: Nekketsu Kouha Kunio-kun
オレたちゲーセン族 熱血硬派くにおくん | PS2 | 1.01 | Original | | SLPM 62706 | |
| Oretachi Geesen Zoku: Moon Cresta
オレたちゲーセン族 ムーンクレスタ | PS2 | 1.01 | Original | | SLPM 62645 | |
| Oretachi Geesen Zoku: Karate-dou
オレたちゲーセン族 空手道 | PS2 | 1.01 | Original | | SLPM 62628 | |
| Oretachi Geesen Zoku: Crazy Climber
オレたちゲーセン族 クレイジー・クライマー | PS2 | 1.01 | Original | | SLPM 62627 | |
| Oretachi Geesen Zoku: Contra
オレたちゲーセン族 魂斗羅 | PS2 | 1.00 | Original | | SLPM 62730 | |
| Oretachi Geesen Zoku: Burger Time
オレたちゲーセン族 バーガータイム | PS2 | 1.00 | Original | | SLPM 62695 | |
| Oretachi Geesen Zoku: Akumajou Dracula
オレたちゲーセン族 悪魔城ドラキュラ | PS2 | 1.01 | Original | | SLPM 62729 | |
| The Oregon Trail | PC | 1.2 | Original | | #HCD706 | |
| The Oregon Trail | PC | 1.2 | Original | | #HCD706 | |
| The Oregon Trail | PC | 1.1 | Original | | #HCD606 | |
| The Oregon Trail | PC | 1.0 | Original | | | |
| Oregon Trail II + Logic Quest | PC | 1.2/1.0 | Original | | | |
| Oregon Trail II | PC | 1.0 | Original | | | |
| The Oregon Trail 5th Edition: Adventures Along the Oregon Trail | PC | 1.0 | Original | | 380859-CD | |
| The Oregon Trail 5th Edition: Adventures Along the Oregon Trail | PC | 1.0 | Original | | 380859A-CD | |
| The Oregon Trail 4th Edition (Disc 3) | PC | 1 | Original | | OTF744AE-CD3 | |
| The Oregon Trail 4th Edition (Disc 2) | PC | 1 | Original | | OTF744AE-CD2 | |
| The Oregon Trail 4th Edition (Disc 1) | PC | 1 | Original | | OTF744AE-CD1 | |
| The Oregon Trail 3rd Edition: Pioneer Adventures (Disc 3) | PC | 1.2 | Original | | OTA744BE-CD3 | |
| The Oregon Trail 3rd Edition: Pioneer Adventures (Disc 3) | PC | | Original | | OTA744AE-CD3 | |
| The Oregon Trail 3rd Edition: Pioneer Adventures (Disc 3) | PC | | Original | | OTA744AE-CD3 | |
| The Oregon Trail 3rd Edition: Pioneer Adventures (Disc 2) | PC | 1.2 | Original | | OTA744BE-CD2 | |
| The Oregon Trail 3rd Edition: Pioneer Adventures (Disc 2) | PC | | Original | | OTA744AE-CD2 | |
| The Oregon Trail 3rd Edition: Pioneer Adventures (Disc 1) | PC | 1.2 | Original | | OTA744CE-CD1 | |
| The Oregon Trail 3rd Edition: Pioneer Adventures (Disc 1) | PC | 1.0 | Original | | OTA744AE-CD1 | |
| Ore! Tomba
オレっ！トンバ | PSX | | Original | | SLPS 01144 | |
| Ore no Yotto: Ganbare! Nippon Challenge
俺のヨット ～がんばれ！ ニッポン・チャレンジ～ | PSX | | Original | | SLPS 02132 | |
| Ore no Yome: Anata dake no Hanayome
俺の嫁 ～あなただけの花嫁～ | XBOX360 | | Original | | IF-2008 | |
| Ore no Shita de Agake
俺の下であがけ | PC | System3.9 Ver.5.43 | Original | | ALB-005 | |
| Ore no Shita de Agake
俺の下で ＡＧＡＫＥ | PS2 | 1.01 | Original | | SLPS 25796 | |
| Ore no Imouto ga Konnani Kawaii Wake ga Nai. Happy End
俺の妹がこんなに可愛いわけがない。 ハッピーエンド | PS3 | 01.01 | Original | | BLJS 10238 | |
| Ore ga Kantoku da! Volume 2: Gekitou Pennant Race
オレが監督だ！Ｖｏｌｕｍｅ．２ ～激闘ペナントレース～ | PS2 | 1.04 | Original | | SLPM 65056 | |
| Ore ga Kantoku da! Gekitou Pennant Race
オレが監督だ！ ～激闘ペナントレース～ | PS2 | 1.03 | Original | | SLPM 65005 | |
| Orda: Severnyj veter
Орда: Северный ветер | PC | | Original | | | |
| Orange Pocket: Root
オレンジポケット ～リュート～ | PS2 | 1.02 | Original | | SLPM 65525 | |
| The Orange Box
오렌지 박스 | XBOX360 | | Original | | EA-2063 | |
| The Orange Box (Disc 2) | PC | | Original |  | 985217 | |
| The Orange Box | PS3 | 01.00 | Original | | BLUS-30055 | |
| The Orange Box (Disc 2)
戰慄時空2：二部曲重裝旗艦版 | PC | | Original | | TTE0193 | |
| The Orange Box (Disc 1)
戰慄時空2：二部曲重裝旗艦版 | PC | | Original | | TTE0193 | |
| The Orange Box (Disc 2) | PC | | Original | | | |
| The Orange Box (Disc 1) | PC | | Original | | | |
| The Orange Box | XBOX360 | | Original | | EA-2063 | |
| The Orange Box (Disc 2) | PC | | Original | | VAI07705811D2 | |
| The Orange Box (Disc 1) | PC | | Original | | VAI07705811D | |
| The Orange Box (Disc 2) | PC | | Original | | VAD07705811D2 | |
| The Orange Box (Disc 1) | PC | | Original | | VAD07705811D | |
| The Orange Box | PS3 | 01.00 | Original | | BLES-00171 | |
| The Orange Box | XBOX360 | | Original | | EA-2063 | |
| The Orange Box | PS3 | 01.00 | Original | | BLES-00172 | |
| The Orange Box (Disc 1) | PC | | Original | | VAX07705811D | |
| The Orange Box | PS3 | 01.00 | Original | | BLES-00153 | |
| Oracle no Houseki: Jewels of the Oracle
オラクルの宝石 | SS | 1.004 | Original | | T-1511G | |
| Oracle no Houseki: Jewels of the Oracle
オラクルの宝石 Ｊｅｗｅｌｓ ｏｆ ｔｈｅ Ｏｒａｃｌｅ | PSX | | Original | | SLPS 00240 | |
| Option: Tuning Car Battle Spec R
オプション チューニングカーバトル スペックR | PSX | | Original | | SLPS 02587 | |
| Option: Tuning Car Battle 2
オプション チューニングカーバトル2 | PSX | | Original | | SLPS 01857 | |
| Option: Tuning Car Battle
オプション チューニングカーバトル | PSX | | Original | | SLPS 01207 | |
| Optimum Resource Sampler | PC | | Original | | | |
| OptImage Media Showcase | CDI | 1.0 | Original | | | |
| OptImage CD-I 220 Adjustment Disc | CDI | | Original | | | |
| Opowieści z Narnii: Lew, Czarownica i Stara Szafa (Disc 4) | PC | | Original | | | |
| Opowieści z Narnii: Lew, Czarownica i Stara Szafa (Disc 3) | PC | | Original | | | |
| Opowieści z Narnii: Lew, Czarownica i Stara Szafa (Disc 2) | PC | | Original | | | |
| Opowieści z Narnii: Lew, Czarownica i Stara Szafa (Disc 1) | PC | | Original | | | |
| Opowieści z Narnii: Lew, Czarownica i Stara Szafa | PS2 | 1.00 | Original | | SLES-53713 | |
| Operator's Side
オペレーターズサイド | PS2 | 1.02 | Original | | SCPS 15039 | |
| The Operative: No One Lives Forever (Disc 2) | PC | 1.0 | Original | | | |
| The Operative: No One Lives Forever (Disc 1) | PC | 1.0 | Original | | | |
| The Operative: No One Lives Forever | PS2 | 1.50 | Original | | SLUS-20028 | |
| The Operative: No One Lives Forever (Disc 2)
ノーワンリブスフォーエバー | PC | 1.004, 1.004J | Original | | | |
| The Operative: No One Lives Forever (Disc 1)
ノーワンリブスフォーエバー | PC | 1.004, 1.004J | Original | | | |
| The Operative: No One Lives Forever (Disc 2) | PC | 1.0 | Original | | FXX08903223D2 | |
| The Operative: No One Lives Forever (Disc 2) | PC | 1.0 | Original | | FXX08903223D2 | |
| The Operative: No One Lives Forever (Disc 1) | PC | 1.0 | Original | | FXX08903223D1 | |
| The Operative: No One Lives Forever | PS2 | 1.00 | Original | | SLES-50592 | |
| The Operational Art of War: Century of Warfare | PC | | Original | | | |
| The Operational Art of War II: 1956-2000
The Operational Art of War II: Bewaffnete Konflikten | PC | | Original | | | |
| Operation WinBack 2: Project Poseidon | PS2 | 1.00 | Original | | SLES-54116 … | |
| Operation WinBack 2: Project Poseidon | XBOX | | Original | | KO-008 | |
| Operation WinBack | PS2 | 1.10 | Original | | SLES-50155 | |
| Operation Thunderstorm | PC | 1.0 | Original | | | |
| Operation Omega | PC | | Original | | 7-20286-92175-1 | |
| Operation Neptune | PC | 1.22 | Original | | ONT744CE-CD | |
| Operation Neptun | PC | 1.2 | Original | | ONT844AW-CD | |
| Operation Mittelmeer | PC | | Original | | | |
| Operation Flashpoint: Resistance | PC | 1.75 | Original | | MOFRCDUS00 | |
| Operation Flashpoint: Resistance | PC | 1.75 | Original | | MOFRCDEU00 | |
| Operation Flashpoint: Red River | XBOX360 | | Original | | CM-2104 | |
| Operation Flashpoint: Red River | PS3 | 01.01 | Original | | BLUS-30704 | |
| Operation Flashpoint: Red River | PC | | Original | | MOFP3CDUS00 | |
| Operation Flashpoint: Red River | XBOX360 | | Original | | CM-2104 | |
| Operation Flashpoint: Red River | PC | 1.0 | Original | | MOFP3CDEU00 | |
| Operation Flashpoint: Red River | PS3 | 01.01 | Original | | BLES-01171 | |
| Operation Flashpoint: Holodnaja vojna
Операция Flashpoint: Холодная война | PC | 1.46 | Original | | | |
| Operation Flashpoint: Gold Upgrade | PC | 1.30 | Original | | MOFUCDUS00 | |
 | Operation Flashpoint: Gold Upgrade
Operace Flashpoint: Gold Upgrade | PC | | Original |  | | |
| Operation Flashpoint: Elite | XBOX | | Original | | CM-090 | |
| Operation Flashpoint: Dragon Rising | XBOX360 | | Original | | CM-2065 | |
| Operation Flashpoint: Dragon Rising | PS3 | 01.01 | Original | | BLUS-30316 | |
| Operation Flashpoint: Dragon Rising
오퍼레이션 플래시포인트: 드래곤 라이징 | PS3 | 01.01 | Original | | BLKS 20157 | |
| Operation Flashpoint: Dragon Rising | PS3 | 01.01 | Original | | BLJM 60152 | |
| Operation Flashpoint: Dragon Rising | XBOX360 | | Original | | CM-2065 | |
| Operation Flashpoint: Dragon Rising | PC | | Original | | MOFP2CDEU00 | |
| Operation Flashpoint: Dragon Rising | PC | 1.0 | Original | | MOFP2CDEU00 | |
| Operation Flashpoint: Cold War Crisis | PC | 1.0 | Original | | MOPFCDUS00 | |
| Operation Flashpoint: Cold War Crisis | PC | 1.0 | Original | | MOPFCDEU00 | |
| Operation Europe: Path to Victory 1939-45 | PC | | Original | | | |
| Operation Darkness | XBOX360 | | Original | | AT-2002 | |
| Operation Darkness
オペレーション・ダークネス | XBOX360 | | Original | | SU-2001 | |
| Operation Body Count: One Level Preview | PC | | Original | | | |
| Operation Body Count | PC | | Original | | | |
| Operation Barbarossa: The Struggle for Russia | PC | | Original | | | |
| Operation Air Assault 2 | PS2 | 1.01 | Original | | SLES-54804 | |
| Operation Air Assault | PS2 | 1.01 | Original | | SLES-52572 | |
| Operaciya Bagration
Операция Багратион | PC | | Original | | | |
| Operaciya "Plastilin" (Disc 2)
Операция "Пластилин" | PC | | Original | | | |
| Operaciya "Plastilin" (Disc 1)
Операция "Пластилин" | PC | | Original | | | |
| Opening Night: Behind The Scenes | PC | 1.0 | Original | | #HCD646B | |
| Opening Night | PC | 1.0 | Original | | #HCD646A | |
| Open Universiteit: Practicum Toxicologische Histopathologie
Open University: Practical Toxicological Histopathology | CDI | | Original | | 4589 | |
| The Open Golf: History of Turnberry
ジ・オープンゴルフ History of Turnberry | PSX | | Original | | SLPS 00418 | |
| Opel Vectra '99 | PHOTO-CD | | Original | | | |
| Ooumi Nobunaga Den: Geten II
大海信長伝・下天ＩＩ | PSX | | Original | | SLPS 00874 | |
| Oops! Prank Party | WII | Rev 1 | Original | | RVL-SPIE-USA-B0 | |
| Ookami-teki Monshou: Crest of Wolf
狼的紋章 クレスト・オブ・ウルフ | PCE | | Original | | HCD3044 | |
| Oogst van de Zon | CDI | | Original | | 814 0004 | |
| Oogami Ichirou Funtou-ki: Sakura Taisen Kayou Show "Beni Tokage" yori (Disc 2)
大神一郎奮闘記 ～サクラ大戦歌謡ショウ「紅蜥蜴」より～ | DC | 1.000 | Original | | HDR-0057 | |
| Oogami Ichirou Funtou-ki: Sakura Taisen Kayou Show "Beni Tokage" yori (Disc 1)
大神一郎奮闘記 ～サクラ大戦歌謡ショウ「紅蜥蜴」より～ | DC | 1.000 | Original | | HDR-0057 | |
| Ooedo Renaissance
大江戸ルネッサンス | SS | 1.001 | Original | | T-9104G | |
| Ooedo Fuusui Ingaritsu: Hanabi 2
大江戸風水因果律 花火２ | PSX | | Original | | SLPS 02814 | |
| De Ontdekker en het Mysterie van de Diamanten Scarabee
The Explorer and the Mystery of the Diamond Scarab | WII | | Original | | RVL-SODP-EUR-B0 | |
| Ontdek het Onbekende Nederland | CDI | 1.06 | Original | | 814 0104 | |
| Ontdek de Interactieve Wereld van Neckermann | CDI | | Original | | | |
| Onside Complete Soccer | PSX | Rev 1 | Original | | SLES-00079 | |
| Onside Complete Soccer | PSX | | Original | | SLES-00079 | |
| Onsen de Takkyuu
温泉ｄｅ卓球 | PC | | Original | | | |
| Onmyou Taisenki: Hasha no In
陰陽大戦記 ～覇者の印～ | PS2 | 1.03 | Original | | SLPS 25501 | |
| Onmyou Taisenki: Byakko Enbu
陰陽大戦記 白虎演舞 | PS2 | 1.01 | Original | | SLPS 20417 | |
| Only One 2: Bijin Casino Dealer Hitomi: Sei no Roulette
オンリーワン２ 美人カジノディーラー瞳 性のルーレット | PC | | Original | | ON2-HITO | |
| Online Start-Up Disc v3.5: Broadband Only | PS2 | 1.00 | Original | | PBPX 95247 | |
| Online Start-Up Disc v3.5: Broadband Only | PS2 | 1.00 | Original | | PBPX-95246 | |
| Online Start-Up Disc v3.0 | PS2 | 1.02 | Original | | PBPX-95239 | |
 | Online Start-Up Disc v1.0
Disco de Inicio en Línea v1.0 | PS2 | 1.00 | Original | | PBPX 95250 … | |
| Online Pro Wrestling
オンラインプロレスリング | PS2 | 1.03 | Original | | SLPM 65586 | |
| Onimusha: Put' samuraya (Disc 4)
Onimusha: Путь самурая | PC | | Original | | | |
| Onimusha: Put' samuraya (Disc 3)
Onimusha: Путь самурая | PC | | Original | | | |
| Onimusha: Put' samuraya (Disc 2)
Onimusha: Путь самурая | PC | | Original | | | |
| Onimusha: Put' samuraya (Disc 1) (Igrovoj)
Onimusha: Путь самурая | PC | | Original | | | |
| Onimusha: Put' samuraja
Onimusha: Путь самурая | PC | | Original | | | |
| Onimusha 2: Samurai's Destiny | PS2 | 1.03 | Original | | SLUS-20393 | |
| Onimusha 2: Samurai's Destiny | PS2 | 1.00 | Original | | SLES-50978 | |
| Onigunsou Kuramochi Yuzo no Yatchimasu: Spartan Manshu
鬼軍曹倉持勇造の殺っちます ～スパルタン満州～ | PC | | Original | | | |
| The Oni Taiji!!: Mezase! Nidaime Momotarou
Ｔｈｅ鬼退治！！ 目指せ！二代目桃太郎 | PSX | | Original | | SLPS 00089 | |
| Oni | PC | 1.00.000 | Original | | MTW-0390 | |
| OnHand Chess / Sega Swirl Lite | PALM | PDA103-01 | Original | | PDA103-01 | |
| Ongaku Tkool: Kanadeeru 2
音楽ツクール かなで～る２ | PSX | | Original | | SLPS 00903 | |
| Ongaku Tkool 3
音楽ツクール３ | PSX | | Original | | SLPS 03161 | |
| Onegai Countdown
おねがいカウントダウン | PC | | Original | | YMH-0013 | |
| Oneechanbara Z: Kagura with NoNoNo!
お姉チャンバラZ～カグラ～ With NoNoNo! | PS3 | 01.03 | Original | | BLJS 10221 | |
| Oneechanbara VorteX: Imichi o Tsugu Mono-tachi
お姉チャンバラ vorteX ～忌血を継ぐ者たち～ | XBOX360 | | Original | | DP-2002 | |
| Oneechanbara Revolution
お姉チャンバラ Ｒｅｖｏｌｕｔｉｏｎ | WII | | Original | | RVL-RONJ-JPN | |
| Onee-san to Issho! Kisekae Paradise
お姉さんといっしょ！ 着せ替え パラダイス | 3DO | | Original | | FZ-SJ5252 | |
| Onee-san to Issho! Janken Paradise
お姉さんといっしょ！ じゃんけん パラダイス | 3DO | | Original | | FZ-SJ5251 | |
| One Unit Whole Blood | PC | 1.21 | Original | | 04-16459CD1 | |
| One Two Animal: Let's Animal Series 1
ワンツーあにまる レッツあにまるシリーズ１ | PC | | Original | | LAOA-96101 | |
