| Region | Title | System | Version | Edition | Languages | Serial | Status |
 | Open Kart | PC | | I Videogiochi del "Giornalino" | | | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | The Open Golf: History of Turnberry ジ・オープンゴルフ History of Turnberry | PSX | | Original | | SLPS 00418 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | L'Open de Palm Springs | CDI | | Original, For Demonstration Only | | 812 0002 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Opel Vectra '99 | PHOTO-CD | | Original | | |  |
 | Opel IAA '99 (Disc 2) (Opel Highlights) | PHOTO-CD | | Original | | |  |
 | Opel IAA '99 (Disc 1) (Model Range) | PHOTO-CD | | Original | | |  |
 | Opel IAA '97 | PHOTO-CD | | Original | | |  |
 | Opel Corsa '97 | PHOTO-CD | | Original | | |  |
 | Op Jacht naar Vernuft | CDI | | | | | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Op Avontuur in het Piratenschip | PC | | Original | | 5989 |  |
 | Op Avontuur in de Vuurtoren | PC | | Original | | 5990 |  |
 | Op Avontuur in de Molen | PC | | Original | | 5991 |  |
 | Oozora ni Kodawarou! Minna no Kuukou 2 大空にこだわろう! みんなの空港2 | PC | | | | |  |
 | Ooumi Nobunaga Den: Geten II 大海信長伝・下天II | PSX | | Original | | SLPS 00874 |  |
 | Oookuki 大奥記 | PS2 | 1.02 | Original | | SLPM 66441 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Ookami: Zekkeiban 大神 絶景版 | PS3 | 00.00 | Original, PlayStation 3 the Best, PlayStation 3 the Best (Reprint) | | BLJM 55061 … | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Ookami: Fude-hajime no Maki 大神 筆はじめノ巻 | PS2 | 1.01 | Taikenban | | SLPM 61124 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Ookami-teki Monshou: Crest of Wolf 狼的紋章 クレスト・オブ・ウルフ | PCE | | Original | | HCD3044 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Ookami Kakushi おおかみかくし | PSP | 1.04 | Original | | ULJM 05413 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Ookami 大神 | PS2 | 1.03 | Original, PlayStation 2 the Best | | SLPM 66375 … | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Oogami Ichirou Funtouki: 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, Sample | | HDR-0057 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Oogami Ichirou Funtouki: 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, Sample | | HDR-0057 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Ooga Booga | DC | 1.001 | Original | | 51140 |  |
 | Ooedo Senryoubako 大江戸千両箱 | PSP | 1.01 | Original | | ULJM 05099 |  |
 | Ooedo Fuusui Ingaritsu: Hanabi 2 大江戸風水因果律 花火2 | PSX | | Original | | SLPS 02814 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | 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 de Interactieve Wereld van Neckermann | CDI | | Original | | | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Ontdek de Boerderij met Barabas de Boekenbij | PC | | Original | | |  |
 | Onslaught | WII | | Beta | | |  |
 | OnSide Soccer | 3DO | | Unlicensed (oldergames, Good Deal Games Double Header! Two Game Set) | | | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Onsen Ryokou Kakumei: Ich liebe dich.! 温泉旅行革命 ~Ich liebe dich.!~ | PC | 1.00 | Original | | RUCCA-003 |  |
 | Onsen Ping-Pong 温泉卓球 | PC | | Event Oyobi Tsuushin Hanbaiban | | |  |
 | Onsen de Takkyuu 温泉de卓球 | PC | | Original | | |  |
 | Onsalakorv | PC | | Original | | |  |
 | Onore no Shinzuru Michi o Yuke 己の信ずる道を征け | PSP | 1.01 | Original | | ULJM 05465 |  |
 | 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 | EyeToy Camera Doukonban | | SLPS 20416 |  |
 | Onmyou Taisenki: Byakko Enbu 陰陽大戦記 白虎演舞 | PS2 | 1.01 | Original | | SLPS 20417 |  |
 | Only You: Sekai no Namida to Shoujo no Hanashi: Prelude Only You -世界の涙と少女のハナシ- Prelude | PC | 1.00 | Trial Edition version:share II | | |  |
 | Only You: Seikimatsu no Juliet-tachi Only You ~世紀末のジュリエットたち~ | FMT | | Shokai Gentei | | |  |
 | Only You: Rebel Cross Only You リベルクルス | PS2 | 1.03 | Original, Drama CD Tsuki | | SLPS 25150 … | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Only One 3in1 オンリーワン 3in1 | PC | | PC Game Bundle | | |  |
 | Only One 2: Naomi: Ai no Inori ga Todoku Toki オンリーワン2 なおみ 愛の祈りが届く時 | PC | 1.0.0.1 | Original | | ON2-NAO |  |
 | 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 |  |
 | Only One + R: Higyaku no Mermaid Minano オンリーワン+R ~被虐のマーメイド美奈乃~ | PC | | Original | | |  |
 | Only Fun: Entra anche tu nel mondo dei Videogames | PC | | | | |  |
 | OnlineGamez | PC | | | | |  |
 | 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 - 952 … | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Online Start-Up Disc v3.0 | PS2 | 1.01 | | | PBPX-95242 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Online Start-Up Disc v3.0 | PS2 | 1.01 | | | SCUS 97425 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Online Start-Up Disc v1.0 Disco de Inicio en Línea v1.0 | PS2 | 1.00 | Original | | PBPX 95250 … | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Online Start-Up Disc 4.0: Broadband Only | PS2 | 1.02 | Bundled with PS2 | | PBPX 95248 … | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Online Start-Up Disc 4.0: Broadband Only | PS2 | 1.01 | Bundled with PS2 | | PBPX 95248 |  |
 | Online Start-Up Disc 4.0 | PS2 | 1.00 | | | SCUS 97357 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Online Pro Wrestling オンラインプロレスリング | PS2 | 1.03 | Original | | SLPM 65586 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Online Games: Dai Guru Guru Onsen オンラインゲームズ 大ぐるぐる温泉 | PS2 | 1.01 | Original | | SLPM 62195 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Online G@mer n. 5: Juin/Juillet 2001 (Disc 1) | PC | | | | |  |
 | Online Connection CD: For the PlayStation Game Console | PSX | | Beta Trial Version 1.0 | | LSP-150500 … |  |
 | Online Arena: Disc 1: Edition 2000 | PC | | | | |  |
 | Onkel Alberts geheimnisvolles Notizbuch | PC | | Original | | |  |
 | Onitama 鬼魂~おにたま~ | PC | | Original | | BEA-403 |  |
 | Onimusha: Warlords | PS2 | 1.00 | Original, Greatest Hits | | SLUS 20018 … | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Onimusha: Warlords | PS2 | 1.00 | Original | | SLPM 67507 |  |
 | Onimusha: Warlords | PS2 | 1.02 | Original, Platinum | | SLES-50247 … | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | 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: Dawn of Dreams (Disc 2) | PS2 | 1.02 | Original | | SLUS 21362 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Onimusha: Dawn of Dreams (Disc 1) | PS2 | 1.02 | Original | | SLUS 21180 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Onimusha: Blade Warriors | PS2 | 1.01 | Original | | SLUS 20710 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Onimusha: Blade Warriors | PS2 | 1.01 | Original | | SLES-51913 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Onimusha Buraiden 鬼武者 無頼伝 | PS2 | 1.02 | Original | | SLPM 65411 |  |
 | Onimusha 3: Demon Siege | PS2 | 1.01 | Original | | SLUS 20694 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Onimusha 3 (Patch PL) | PC | | PC Game Bundle | | CENEGA 443/2006 |  |
 | Onimusha 3 鬼武者3 | PS2 | 1.01 | Original | | SLPM 65413 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Onimusha 3 | PS2 | 1.01 | Original | | SLES-51914 … | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Onimusha 3 | PC | | Original | | 5004561 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Onimusha 2: Samurai's Destiny | PS2 | 1.03 | Original | | SLUS 20393 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Onimusha 2: Samurai's Destiny | PS2 | 1.00 | Original | | SLES-50978 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Onimusha 2: Samurai's Destiny 鬼武者2 PAL | PS2 | 1.00 | Beta | | SLES-50978 |  |
 | Onimusha 2 鬼武者2 | PS2 | 1.04 | Shokai Press-ban | | SLPM 65100 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Onimusha 2 鬼武者2 | PS2 | 1.04 | Original, Mega Hits! | | SLPM 65101 … | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Onimusha 鬼武者 | PS2 | 1.03 | Original, Mega Hits! | | SLPM 65010 … | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Onimusha 鬼武者 | PS2 | 1.01 | Taikenban | | SLPM 61001 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Onikiri-den 鬼斬伝 | PC | | Original | | ZEUS-00001 |  |
 | 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 | | |  |
 | Onible'jd Ониблэйд | 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 |  |
 | The Oni Taiji!!: Mezase! Nidaime Momotarou The鬼退治!! 目指せ!二代目桃太郎 | PSX | | Major Wave | | SLPM 86989 |  |
 | Oni no Kamen 鬼ノ仮面 | PC | 1.00 | Original | | |  |
 | Oni / 4x4 Evo Oni / 4x4 Evolution | PC | | Demo | | 12DC1-09GM03-11 |  |
 | Oni | PC | 1.0 | Original | | | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Oni | PC | 1.00.000 | Original | | MTW-0390 |  |
 | Oni | PC | 1.0 | Covermount | | |  |
 | Oni | PC | 1.0 | Covermount | | |  |
 | Oni | PC | 1.0 | Green Pepper | | |  |
 | Oni | PS2 | 1.02 | Original, Platinum | | SLES-50134 … | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |