Region | Title | System | Version | Edition | Languages | Serial | Status |
| OutRun 2 | CHIHIRO | 2.000 | Original | | GDX-0004A | |
| Ollie King オーリーキング | CHIHIRO | 1.003 | Original | | GDX-0007 | |
| Otomedius (System Disc) オトメディウス | KEA | JAA | Original | | GGGJAA01 | |
| Otomedius (Application Disc 2) オトメディウス | KEA | JAA | Original | | GGGJAA03 | |
| Otomedius (Application Disc 1) オトメディウス | KEA | JAA | Original | | GGGJAA02 | |
| Our House featuring The Family Circus | VIS | | Original | | 25-6146 | |
| Oha Suta Series 02: Oha Ska! おはスタシリーズ02 おは スカ | KSITE | | Original | | 538714 | |
| Oha Suta Series 01: Zonapara おはスタシリーズ01 象南波羅~ゾナパラ~ | KSITE | | Original | | 536956 | |
| Ovation | ARCH | 1.48S | | | 00139 | |
| Oregano Oregano: RISC OS Web Browser | ARCH | | Original | | | |
| One-derful Theater ONEだふるシアター | X68K | | | | | |
| Oh!X 2001 Spring Special CD-ROM | X68K | | | | | |
| Oh!X 2000 Spring Special CD-ROM (Part 2) | X68K | | | | | |
| Oh!X 2000 Spring Special CD-ROM (Part 1) | X68K | | | | | |
| Oh!X 1999 Summer Special CD-ROM | X68K | | | | | |
| Oh!X 1999 Spring Special CD-ROM (Part 1) | X68K | | | | | |
| Oh!X 1999 Spring Special CD-ROM (Part 2) (Sampler Disc) | X68K | | | | | |
| Oh!X 1998 Spring Special CD-ROM (Part 2) (Sampler Disc) | X68K | | | | | |
| Oh!X 1998 Spring Special CD-ROM (Part 1) | X68K | | | | | |
| Okigaru Igo Taikyoku お気軽囲碁対局 | PPC | | Original | | | |
| Oxford Handbook of Clinical Medicine for PDAs: Seventh Edition | PALM | 10.0.05/2007.9.7 | | | | |
| 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 | |
| OnHand Chess / Sega Swirl Lite | PALM | PDA103-01 | Original | | PDA103-01 | |
| Okigaru Igo Taikyoku お気軽囲碁対局 | PALM | | Original | | | |
| Oh-chan no Oekaki Logic for Palm おーちゃんのお絵かきロジック for Palm | PALM | 1.04 | Original | | | |
| ODN Palm Power Pack | PALM | | Original | | | |
| Ozaki Yutaka: Eyes: "Hakushi no Sanran" Yori 尾崎 豊 eyes「白紙の散乱」より | PHOTO-CD | | | | CAT.908753-7 | |
| Osaka City 大阪 | PHOTO-CD | | Original | | | |
| 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 | | | |
| Oldtimer | PHOTO-CD | | Original | | 813 0067 | |
| De Overval: Over Dwangmiddelen en Getuigenverhoor | CDI | | Original | | ovrvl 01 | |
| Les Ours Berenstain: Comme des Grands | CDI | 1.05 | | | 812 0063 | |
| Otto Bock: Orthopädische Industrie: Neuheiten Vol. 2: Stand Januar 1997 | CDI | | Original | | | |
| Othello | CDI | | Original | | 810 0163 | |
| Osterreichs Werbepreise: Vier Highlights | CDI | | Original | | | |
| OSHA MHE Forklifts OSHA MHE Forklifts: PFS Interactive Training | CDI | | Original | | | |
| Origami | CDI | | Original | | 810 0041 | |
| OptImage Media Showcase | CDI | 1.0 | Original | | | |
| OptImage CD-I Starter System: Sampler Disc: Version 1.1 | CDI | | | | | |
| OptImage CD-I 220 Adjustment Disc | CDI | | Original | | | |
| Open Universiteit: Practicum Toxicologische Histopathologie Open University: Practical Toxicological Histopathology | CDI | | Original | | 4589 | |
| L'Open de Palm Springs | CDI | | Original, For Demonstration Only | | 812 0002 | |
| Op Jacht naar Vernuft | CDI | | | | | |
| Oogst van de Zon | CDI | | Original | | 814 0004 | |
| Ontdek het Onbekende Nederland | CDI | 1.06 | Original | | 814 0104 | |
| Ontdek de Interactieve Wereld van Neckermann | CDI | | Original | | | |
| One Step Ahead | CDI | | | | Demo 10.05.94 | |
| Omgaan met Steriele Medische Hulpmiddelen Omgaan met Steriele Medische Hulp-Middelen | CDI | | Original | | | |
| Omgaan met Steriele Medische Hulpmiddelen | CDI | | Demo | | | |
| Oil of Ulay: Colour Collection: Colour Consultant | CDI | | Original | | | |
| Oesterreichische Nationalbibliothek: Multimediale Enzyklopaedie auf 3 CD-i's (Disc 3) (Apokalypse) | CDI | | Original | | 0103313 | |
| Oesterreichische Nationalbibliothek: Multimediale Enzyklopaedie auf 3 CD-i's (Disc 2) (Sammlungen) | CDI | | Original | | 0103313 | |
| Oesterreichische Nationalbibliothek: Multimediale Enzyklopaedie auf 3 CD-i's (Disc 1) (Prunksaal/Impressionen) | CDI | | Original | | 0103313 | |
| Objectif Transparence | CDI | | Original | | RP IND 4 94 | |
| Objectif Transparence | CDI | | Original | | RP IND 4 94 | |
| Obduction | MAC | | Kickstarter | | | |
| Outdoor Wander Land アウトドアワンダーランド | MAC | | Original | | ILL-940715 | |
| The Operative: No One Lives Forever (Disc 1) (Game Disc) | MAC | 1.004 | MacPlay | | | |
| Oni | MAC | | Original | | | |
| Odyssey: The Legend of Nemesis | MAC | 1.0 | Original | | | |
| Oddworld: Abe's Exoddus: US Manual | MAC | | Art Assets | | | |
| Oddworld: Abe's Exoddus: UK Packaging | MAC | | Art Assets | | | |
| Oceans Below The Software Toolworks Presents ... Oceans Below | MAC | | Original | | 2198620-590001 / I 073100, CDRM1103420 | |
| Oceans Below オーシャンズ・ビロウ | MAC | | Original | | MSC001 | |
| Obsidian (Disc 5) | MAC | | Original, Great Series | | INR-001, MKM-001 | |
| Obsidian (Disc 4) | MAC | | Original, Great Series | | INR-001, MKM-001 | |
| Obsidian (Disc 3) | MAC | | Original, Great Series | | INR-001, MKM-001 | |
| Obsidian (Disc 2) | MAC | | Original, Great Series | | INR-001, MKM-001 | |
| Obsidian (Disc 1) | MAC | | Original, Great Series | | INR-001, MKM-001 | |
| 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 | |
| Oto to E no Deru Eigo Jisho No. 1: Start with Words 音と絵の出る英語辞書 No.1 「Start with Words」 | FMT | | Original, Rerelease | | HMA-217 | |
| Oshiete Noobow おしえて ぬ~ぼ~ | FMT | | Original | | HMF-110 | |
| Oshare Cooking II おしゃれクッキングⅡ | FMT | Rev B | Original | | HMA-267B | |
| Oshare Cooking おしゃれクッキング | FMT | Rev A | Original | | HMA-267A | |
| Operation Wolf オペレーション・ウルフ | FMT | 1.00 | Ving Vol. 3 | | HMB-126 | |
| Only You: Seikimatsu no Juliet-tachi Only You ~世紀末のジュリエットたち~ | FMT | | Shokai Gentei | | | |
| Okiraku TownsGEAR お気楽 TownsGEAR | FMT | | Bundled with Book | | SBHW-00002 | |
| Okashina Mother Goose: Mixed-Up Mother Goose おかしなマザー・グース | FMT | | Original | | HMB-235 | |
| Obaachan no Chiebukuro おばあちゃんの知恵袋 | FMT | | Original | | HMC-169 | |
| OASYS/Win V2.0 | FMT | | Original | | B28C7020 | |
| Oyaji Hunter Mahjong おやじハンター・マージャン | 3DO | | Original, Sample | | IMP-SF0703 | |
| Outer World アウター・ワールド | 3DO | | Original | | FZ-SJ3451 | |
| Out of This World | 3DO | RE | 3DO Maniac Pack | | | |
| Out of This World | 3DO | | Original | | | |
| Oukoku no Grand Chef 王国のグランシェフ | 3DO | | Original | | FZ-SJ4252 | |
| Orbatak | 3DO | | Arcade CD-ROM | | | |
| OnSide Soccer | 3DO | | Unlicensed (oldergames, Good Deal Games Double Header! Two Game Set) | | | |
| 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 | |
| Olympic Summer Games | 3DO | | Original | | FZ-SW0012 | |
| Olympic Soccer | 3DO | | Original | | FZ-SW0011 | |
| Olympic Games | 3DO | | Bundled with Magazine (Demo) | | | |
| Oilman オイルマン | 3DO | | Hibaihin | | OIL-9610 | |
| Ogura Hyakunin Isshu 小倉百人一首 | 3DO | | Original | | SV-0201 | |
| Off-World Interceptor | 3DO | | Original | | | |
| Off-World Interceptor 혹성질주 | 3DO | | Original | | GDT-GA241 | |
| Off-World Interceptor オフ‐ワールド・インターセプター | 3DO | | Original | | FZ-SJ3151 | |
| Oceans Below | 3DO | | Original | | | |
| Oceans Below オーシャンズ・ビロウ | 3DO | | Original | | FZ-SJ2752 | |
| OverTop オーバートップ | NGCD | | Original | | ADCD-011 | |
| Oshidashi Zintrick ~ ZinTricK 押し出しジントリック | NGCD | | Original | | ADCD-104 | |
| Overkill & Lunar-C | CD32 | | Original | | /DP130002 | |
| OnEscapee | ACD | | Original | | | |
| Oldtimer | ACD | | Original | | | |
| Oh Yes... More Worms! Volume 1 | ACD | | Original | | | |
| Overlord II | XBOX360 | | Beta | | CM-2058 | |
| Overlord | XBOX360 | | Beta | | CM-2005 | |
| Overlord | XBOX360 | | Beta | | CM-2005 | |
| Original Xbox Game Support: December 2005 (1.2) Prise en charge des jeux Xbox d'origine: Décembre 2005 (1.2) | XBOX360 | | Original | | | |
| Original Xbox Game Support: August 2006 (1.5) | XBOX360 | | | | | |
| Overlord II | XBOX360 | | Original | | CM-2057 | |
| Overlord | XBOX360 | | Original | | CM-2005 | |
| Over G: Energy Airforce | XBOX360 | | Original | | TI-2001 | |
| Over G Fighters | XBOX360 | | Original | | TI-2001 | |
| The Outfit | XBOX360 | | Original | | TQ-2002 | |
| The Outfit | XBOX360 | | Original | | TQ-2002 | |
| Ougon Musou Kyoku X 黄金夢想曲X | XBOX360 | | Original | | AJ-2003 | |
| 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 | |
| Ore no Yome: Anata dake no Hanayome 俺の嫁 ~あなただけの花嫁~ | XBOX360 | | Original | | IF-2008 | |
| The Orange Box 오렌지 박스 | XBOX360 | | Original | | EA-2063 | |
| The Orange Box | XBOX360 | | Original | | EA-2063 | |
| The Orange Box | XBOX360 | | Original | | EA-2063 | |
| Operation Flashpoint: Red River | XBOX360 | | Original | | CM-2104 | |
| Operation Flashpoint: Red River | XBOX360 | | Original | | CM-2104 | |
| Operation Flashpoint: Dragon Rising | XBOX360 | | Original | | CM-2065 | |
| Operation Flashpoint: Dragon Rising | XBOX360 | | Original | | CM-2065 | |
| Operation Darkness | XBOX360 | | Original | | AT-2002 | |
| Operation Darkness オペレーション・ダークネス | XBOX360 | | Original | | SU-2001 | |
| Open Season | XBOX360 | | Original, ESA Foundation Holiday Bundle | | US-2024 | |
| Open Season | XBOX360 | | Original | | US-2024 | |
| Oneechanbara Z: Kagura お姉チャンバラZ~カグラ~ | XBOX360 | | Original | | DP-2036 | |
| 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 | |
| Onechanbara: Bikini Samurai Squad | XBOX360 | | Original | | DP-2026 | |
| Omerta: City of Gangsters | XBOX360 | | Original | | KY-2021 | |
| The Official Xbox Magazine: Australia & New Zealand: Issue 112 | XBOX360 | | | | IM-2159 | |
| The Official Xbox Magazine: Australia & New Zealand: Issue 111 | XBOX360 | | | | IM-2157 | |
| The Official Xbox Magazine: Australia & New Zealand: Issue 110 | XBOX360 | | | | IM-2156 | |
| The Official Xbox Magazine: Australia & New Zealand: Issue 109 | XBOX360 | | | | IM-2155 | |
| The Official Xbox Magazine: Australia & New Zealand: Issue 108 | XBOX360 | | | | IM-2154 | |
| The Official Xbox Magazine: Australia & New Zealand: Issue 107 | XBOX360 | | | | IM-2153 | |
| The Official Xbox Magazine: Australia & New Zealand: Issue 106 | XBOX360 | | | | IM-2152 | |
| The Official Xbox Magazine: Australia & New Zealand: Issue 105 | XBOX360 | | | | IM-2151 | |
| The Official Xbox Magazine: Australia & New Zealand: Issue 104 | XBOX360 | | | | IM-2150 | |
| The Official Xbox Magazine: Australia & New Zealand: Issue 103 | XBOX360 | | | | IM-2149 | |
| The Official Xbox Magazine: Australia & New Zealand: Issue 101 | XBOX360 | | | | IM-2147 | |
| The Official Xbox Magazine: Australia & New Zealand: Issue 100 | XBOX360 | | | | IM-2146 | |
| Official Xbox Magazine Game Disc 99 | XBOX360 | | | | IM-2116 | |
| Official Xbox Magazine Game Disc 98 | XBOX360 | | | | IM-2115 | |
| Official Xbox Magazine Game Disc 97 | XBOX360 | | | | IM-2114 | |
| Official Xbox Magazine Game Disc 96 | XBOX360 | | | | IM-2113 | |
| Official Xbox Magazine Game Disc 95 | XBOX360 | | | | IM-2112 | |
| Official Xbox Magazine Game Disc 94 | XBOX360 | | | | IM-2110 | |
| Official Xbox Magazine Game Disc 93 | XBOX360 | | | | IM-2107 | |
| Official Xbox Magazine Game Disc 92 | XBOX360 | | | | IM-2084 | |
| Official Xbox Magazine Game Disc 91 | XBOX360 | | | | IM-2083 | |
| Official Xbox Magazine Game Disc 90 | XBOX360 | | | | IM-2082 | |
| Official Xbox Magazine Game Disc 89 | XBOX360 | | | | IM-2081 | |
| Official Xbox Magazine Game Disc 88 | XBOX360 | | | | IM-2080 | |
| Official Xbox Magazine Game Disc 87 | XBOX360 | | | | IM-2079 | |
| Official Xbox Magazine Game Disc 86 | XBOX360 | | | | IM-2078 | |
| Official Xbox Magazine Game Disc 85 | XBOX360 | | | | IM-2076 | |
| Official Xbox Magazine Game Disc 84 | XBOX360 | | | | IM-2075 | |
| Official Xbox Magazine Game Disc 83 | XBOX360 | | | | IM-2074 | |
| Official Xbox Magazine Game Disc 82 | XBOX360 | | | | IM-2073 | |
| Official Xbox Magazine Game Disc 81 | XBOX360 | | | | IM-2072 | |
| Official Xbox Magazine Game Disc 80 | XBOX360 | | | | IM-2061 | |
| Official Xbox Magazine Game Disc 79 | XBOX360 | | | | IM-2060 | |
| Official Xbox Magazine Game Disc 78 | XBOX360 | | | | IM-2056 | |
| Official Xbox Magazine Game Disc 77 | XBOX360 | | | | IM-2055 | |
| Official Xbox Magazine Game Disc 76 | XBOX360 | | | | IM-2053 | |
| Official Xbox Magazine Game Disc 75 | XBOX360 | | | | IM-2051 | |
| Official Xbox Magazine Game Disc 74 | XBOX360 | | | | IM-2054 | |
| Official Xbox Magazine Game Disc 73 | XBOX360 | | | | IM-2052 | |
| Official Xbox Magazine Game Disc 72 | XBOX360 | | | | IM-2048 | |
| Official Xbox Magazine Game Disc 71 | XBOX360 | | | | IM-2037 | |
| Official Xbox Magazine Game Disc 70 | XBOX360 | | | | IM-2036 | |
| Official Xbox Magazine Game Disc 69 | XBOX360 | | | | IM-2035 | |
| Official Xbox Magazine Game Disc 68 | XBOX360 | | | | IM-2034 | |
| Official Xbox Magazine Game Disc 67 | XBOX360 | | | | IM-2033 | |
| Official Xbox Magazine Game Disc 66 | XBOX360 | | | | IM-2032 | |
| Official Xbox Magazine Game Disc 65 | XBOX360 | | | | IM-2027 | |
| Official Xbox Magazine Game Disc 60 | XBOX360 | | | | IM-2013 | |
| Official Xbox Magazine Game Disc 54e | XBOX360 | | | | SQ-2002 | |
| Official Xbox Magazine Game Disc 131 | XBOX360 | | | | IM-2117 | |
| Official Xbox Magazine Game Disc 130 | XBOX360 | | | | IM-2116 | |
| Official Xbox Magazine Game Disc 129 | XBOX360 | | | | IM-2115 | |
| Official Xbox Magazine Game Disc 128 | XBOX360 | | | | IM-2109 | |
| Official Xbox Magazine Game Disc 127 | XBOX360 | | | | IM-2108 | |
| Official Xbox Magazine Game Disc 126 | XBOX360 | | | | IM-2107 | |
| Official Xbox Magazine Game Disc 125 | XBOX360 | | | | IM-2106 | |
| Official Xbox Magazine Game Disc 124 | XBOX360 | | | | IM-2161 | |
| Official Xbox Magazine Game Disc 123 | XBOX360 | | | | IM-2160 | |
| Official Xbox Magazine Game Disc 122 | XBOX360 | | | | IM-2159 | |
| Official Xbox Magazine Game Disc 121 | XBOX360 | | | | IM-2158 | |
| Official Xbox Magazine Game Disc 120 | XBOX360 | | | | IM-2157 | |
| Official Xbox Magazine Game Disc 119 | XBOX360 | | | | IM-2156 | |
| Official Xbox Magazine Game Disc 118 | XBOX360 | | | | IM-2155 | |
| Official Xbox Magazine Game Disc 117 | XBOX360 | | | | IM-2153 | |
| Official Xbox Magazine Game Disc 116 | XBOX360 | | | | IM-2152 | |
| Official Xbox Magazine Game Disc 115 | XBOX360 | | | | IM-2151 | |
| Official Xbox Magazine Game Disc 114 | XBOX360 | | | | IM-2150 | |
| Official Xbox Magazine Game Disc 113 | XBOX360 | | | | IM-2149 | |
| Official Xbox Magazine Game Disc 112 | XBOX360 | | | | IM-2148 | |
| Official Xbox Magazine Game Disc 111 | XBOX360 | | | | IM-2147 | |
| Official Xbox Magazine Game Disc 110 | XBOX360 | | | | IM-2146 | |
| Official Xbox Magazine Game Disc 109 | XBOX360 | | | | IM-2145 | |
| Official Xbox Magazine Game Disc 108 | XBOX360 | | | | IM-2144 | |
| Official Xbox Magazine Game Disc 107 | XBOX360 | | | | IM-2143 | |
| Official Xbox Magazine Game Disc 106 | XBOX360 | | | | IM-2123 | |
| Official Xbox Magazine Game Disc 105 | XBOX360 | | | | IM-2122 | |
| Official Xbox Magazine Game Disc 104 | XBOX360 | | | | IM-2121 | |
| Official Xbox Magazine Game Disc 103 | XBOX360 | | | | IM-2120 | |
| Official Xbox Magazine Game Disc 102 | XBOX360 | | | | IM-2119 | |
| Official Xbox Magazine Game Disc 101 | XBOX360 | | | | IM-2118 | |
| Official Xbox Magazine Game Disc 100 | XBOX360 | | | | IM-2117 | |
| Of Orcs and Men | XBOX360 | | Original | | FE-2009 | |
| Obut Pétanque 2 | XBOX360 | | Original | | W6-2008 | |
| OutRun 2 | XBOX | | Beta | | | |
| OutRun 2006: Coast 2 Coast | XBOX | | Original | | SE-136 | |
| OutRun 2 | XBOX | | Original | | SE-054 | |
| OutRun 2 アウトラン2 | XBOX | | Shokai Genteiban | | SE-054 | |
| OutRun 2 | XBOX | | Original | | SE-054 | |
| OutRun 2 | XBOX | | Demo | | SE-057 | |
| Outlaw Volleyball: Red Hot | XBOX | | Original | | SS-003 | |
| Outlaw Volleyball | XBOX | | Original | | SS-003 | |
| Outlaw Volleyball 아웃로 발리볼 | XBOX | | Original | | SS-003 | |
| Outlaw Volleyball アウトローバレーボール | XBOX | | World Collection | | SS-003 | |
| Outlaw Volleyball | XBOX | | Original | | SS-007 | |
| Outlaw Tennis | XBOX | | Original | | TT-118 | |
| 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 | XBOX | | Original | | TT-023 | |
| Outlaw Golf 2 | XBOX | | Original | | TT-023 | |
| Outlaw Golf | XBOX | | Original | | VU-016 | |
| Outlaw Golf アウトローゴルフ | XBOX | | World Collection | | VU-016 | |
| Outlaw Golf | XBOX | | Original | | TM-006 | |
| Outlaw Golf | XBOX | | Original | | TM-006 | |
| Otogi: Myth of Demons | XBOX | | Original | | FS-002 | |
| Otogi: Myth of Demons | XBOX | | Special Pack | | FS-002 | |
| Otogi: Myth of Demons | XBOX | | Original | | FS-002 | |
| Otogi: Hyakki Toubatsu Emaki O・TO・GI ~百鬼討伐絵巻~ | XBOX | | Special Pack | | FS-004 | |
| 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 | |
| Operation WinBack 2: Project Poseidon | XBOX | | Original | | KO-008 | |
| Operation Flashpoint: Elite | XBOX | | Original | | CM-090 | |
| Open Season | XBOX | | Original | | US-097 | |
| Open Season | XBOX | | Original | | US-097 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 12/2005 | XBOX | | Original | | IM-048 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 12/2002 | XBOX | | Original | | IM-003 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 11/2005 | XBOX | | Original | | IM-046 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 11/2004 | XBOX | | Original | | IM-035 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 11/2003 | XBOX | | Original | | IM-022 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 11/2002 | XBOX | | Original | | IM-002 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 10/2005 | XBOX | | Original | | IM-045 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 10/2004 | XBOX | | Original | | IM-034 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 10/2003 | XBOX | | Original | | IM-021 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 09/2006 | XBOX | | Original | | IM-226 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 09/2005 | XBOX | | Original | | IM-044 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 09/2004 | XBOX | | Original | | IM-032 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 08/2006 | XBOX | | Original | | IM-226 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 08/2005 | XBOX | | Original | | IM-043 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 08/2003 | XBOX | | Original | | IM-019 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 08/2002 | XBOX | | Original | | IM-001 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 07/2005 | XBOX | | Original | | IM-042 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 07/2004 | XBOX | | Original | | IM-030 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 07/2003 | XBOX | | Original | | IM-018 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 06/2005 | XBOX | | Original | | IM-041 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 06/2004 | XBOX | | Original | | IM-029 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 06/2003 | XBOX | | Original | | IM-017 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 05/2005 | XBOX | | Original | | IM-040 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 04/2005 | XBOX | | Original | | IM-039 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 04/2003 | XBOX | | Original | | IM-015 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 03/2005 | XBOX | | Original | | IM-038 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 02/2003 | XBOX | | Original | | IM-013 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 01/2006 | XBOX | | Original | | IM-049 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 01/2004 | XBOX | | Original | | IM-024 | |
| Das Offizielle Xbox-Magazin: Cover-DVD 01/2003 | XBOX | | Original | | IM-012 | |
| Official Xbox Starter Pack 2004 | XBOX | | Original | | IM-001 | |
| The Official Xbox Playable Cheats | XBOX | | Original | | IM-001 | |
| Official Xbox Magazine Game Disc 64 | XBOX | | | | IM-223 | |
| Official Xbox Magazine Game Disc 63 | XBOX | | | | IM-222 | |
| Official Xbox Magazine Game Disc 62 | XBOX | | Original | | IM-221 | |
| Official Xbox Magazine Game Disc 61 | XBOX | | Original | | IM-220 | |
| Official Xbox Magazine Game Disc 61 | XBOX | | Original | | IM-229 | |
| Official Xbox Magazine Game Disc 60 | XBOX | | Original | | IM-229 | |
| Official Xbox Magazine Game Disc 59 | XBOX | | Original | | IM-218 | |
| Official Xbox Magazine Game Disc 59 | XBOX | | Original | | IM-227 | |
| Official Xbox Magazine Game Disc 58 | XBOX | | Original | | IM-216 | |
| Official Xbox Magazine Game Disc 58 | XBOX | | Original | | IM-227 | |
| Official Xbox Magazine Game Disc 57 | XBOX | | Original | | IM-215 | |
| Official Xbox Magazine Game Disc 57 | XBOX | | Original | | IM-227 | |
| Official Xbox Magazine Game Disc 56 | XBOX | | Original | | IM-213 | |
| Official Xbox Magazine Game Disc 56 | XBOX | | Original | | IM-225 | |
| Official Xbox Magazine Game Disc 55 | XBOX | | | | IM-209 | |
| Official Xbox Magazine Game Disc 55 | XBOX | | Original | | IM-217 | |
| Official Xbox Magazine Game Disc 54 | XBOX | | Original | | IM-208 | |
| Official Xbox Magazine Game Disc 54 | XBOX | | Original | | IM-214 | |
| Official Xbox Magazine Game Disc 54 | XBOX | | Original | | IM-214 | |
| Official Xbox Magazine Game Disc 53 | XBOX | | Original | | IM-204 | |
| Official Xbox Magazine Game Disc 53 | XBOX | | Original | | IM-212 | |
| Official Xbox Magazine Game Disc 52 | XBOX | | Original | | IM-082 | |
| Official Xbox Magazine Game Disc 52 | XBOX | | Original | | IM-210 | |
| Official Xbox Magazine Game Disc 51 | XBOX | | Original | | IM-081 | |
| Official Xbox Magazine Game Disc 51 | XBOX | | Original | | IM-205 | |
| Official Xbox Magazine Game Disc 51 | XBOX | | Original | | IM-205 | |
| Official Xbox Magazine Game Disc 50 | XBOX | | Original | | IM-080 | |
| Official Xbox Magazine Game Disc 50 | XBOX | | Original | | IM-050 | |
| Official Xbox Magazine Game Disc 49 | XBOX | | Original | | IM-078 | |
| Official Xbox Magazine Game Disc 49 | XBOX | | Original | | IM-049 | |
| Official Xbox Magazine Game Disc 48 | XBOX | | Original | | IM-048 | |
| Official Xbox Magazine Game Disc 48 | XBOX | | Original | | IM-077 | |
| Official Xbox Magazine Game Disc 48 | XBOX | | Original | | IM-048 | |
| Official Xbox Magazine Game Disc 47 | XBOX | | Original | | IM-076 | |
| Official Xbox Magazine Game Disc 47 | XBOX | | Original | | IM-047 | |
| Official Xbox Magazine Game Disc 46 | XBOX | | Original | | IM-075 | |
| Official Xbox Magazine Game Disc 46 | XBOX | | Original | | IM-046 | |
| Official Xbox Magazine Game Disc 46 | XBOX | | Original | | IM-046 | |
| Official Xbox Magazine Game Disc 45 | XBOX | | Original | | IM-074 | |
| Official Xbox Magazine Game Disc 45 | XBOX | | Original | | IM-045 | |
| Official Xbox Magazine Game Disc 45 | XBOX | | Original | | IM-045 | |
| Official Xbox Magazine Game Disc 44 | XBOX | | Original | | IM-071 | |
| Official Xbox Magazine Game Disc 44 | XBOX | | Original | | IM-044 | |
| Official Xbox Magazine Game Disc 44 | XBOX | | Original | | IM-044 | |
| Official Xbox Magazine Game Disc 43 | XBOX | | Original | | IM-070 | |
| Official Xbox Magazine Game Disc 43 | XBOX | | Original | | IM-043 | |
| Official Xbox Magazine Game Disc 43 | XBOX | | Original | | IM-043 | |
| Official Xbox Magazine Game Disc 42 | XBOX | | Original | | IM-042 | |
| Official Xbox Magazine Game Disc 42 | XBOX | | Original | | IM-069 | |
| Official Xbox Magazine Game Disc 42 | XBOX | | Original | | IM-042 | |
| Official Xbox Magazine Game Disc 41 | XBOX | | Original | | IM-041 | |
| Official Xbox Magazine Game Disc 41 | XBOX | | Original | | IM-068 | |
| Official Xbox Magazine Game Disc 41 | XBOX | | Original | | IM-041 | |
| Official Xbox Magazine Game Disc 40 | XBOX | | Original | | IM-067 | |
| Official Xbox Magazine Game Disc 40 | XBOX | | Original | | IM-040 | |
| Official Xbox Magazine Game Disc 39 | XBOX | | Original | | IM-039 | |
| Official Xbox Magazine Game Disc 39 | XBOX | | Original | | IM-039 | |
| Official Xbox Magazine Game Disc 38 | XBOX | | Original | | IM-038 | |
| Official Xbox Magazine Game Disc 38 | XBOX | | Original | | IM-038 | |
| Official Xbox Magazine Game Disc 37 | XBOX | | Original | | IM-037 | |
| Official Xbox Magazine Game Disc 37 | XBOX | | Original | | IM-037 | |
| Official Xbox Magazine Game Disc 36 | XBOX | | Original | | IM-036 | |
| Official Xbox Magazine Game Disc 36 | XBOX | | Original | | IM-036 | |
| Official Xbox Magazine Game Disc 35 | XBOX | | Original | | IM-035 | |
| Official Xbox Magazine Game Disc 35 | XBOX | | Original | | IM-035 | |
| Official Xbox Magazine Game Disc 34 | XBOX | | Original | | IM-034 | |
| Official Xbox Magazine Game Disc 34 | XBOX | | Original | | IM-034 | |
| Official Xbox Magazine Game Disc 33 | XBOX | | Original | | IM-033 | |
| Official Xbox Magazine Game Disc 33 | XBOX | | Original | | IM-033 | |
| Official Xbox Magazine Game Disc 32 | XBOX | | Original | | IM-032 | |
| Official Xbox Magazine Game Disc 32 | XBOX | | Original | | IM-032 | |
| Official Xbox Magazine Game Disc 31 | XBOX | | Original | | IM-031 | |
| Official Xbox Magazine Game Disc 31 | XBOX | | Original | | IM-031 | |
| Official Xbox Magazine Game Disc 30 | XBOX | | Original | | IM-030 | |
| Official Xbox Magazine Game Disc 30 | XBOX | | Original | | IM-030 | |
| Official Xbox Magazine Game Disc 29 | XBOX | | Original | | IM-029 | |
| Official Xbox Magazine Game Disc 29 | XBOX | | Original | | IM-029 | |
| Official Xbox Magazine Game Disc 28 | XBOX | | Original | | IM-028 | |
| Official Xbox Magazine Game Disc 28 | XBOX | | Original | | IM-028 | |
| Official Xbox Magazine Game Disc 28 | XBOX | | Original | | IM-028 | |
| Official Xbox Magazine Game Disc 27 | XBOX | | Original | | IM-027 | |
| Official Xbox Magazine Game Disc 27 | XBOX | | Original | | IM-027 | |
| Official Xbox Magazine Game Disc 27 | XBOX | | Original | | IM-027 | |
| Official Xbox Magazine Game Disc 26 | XBOX | | Original | | IM-025 | |
| Official Xbox Magazine Game Disc 26 | XBOX | | Original | | IM-026 | |
| Official Xbox Magazine Game Disc 26 | XBOX | | Original | | IM-026 | |
| Official Xbox Magazine Game Disc 25 | XBOX | | Original | | IM-024 | |
| Official Xbox Magazine Game Disc 25 | XBOX | | Original | | IM-025 | |
| Official Xbox Magazine Game Disc 25 | XBOX | | Original | | IM-025 | |
| Official Xbox Magazine Game Disc 24 | XBOX | | Original | | IM-023 | |
| Official Xbox Magazine Game Disc 24 | XBOX | | Original | | IM-024 | |
| Official Xbox Magazine Game Disc 24 | XBOX | | Original | | IM-024 | |
| Official Xbox Magazine Game Disc 23 | XBOX | | | | IM-022 | |
| Official Xbox Magazine Game Disc 23 | XBOX | | Original | | IM-023 | |
| Official Xbox Magazine Game Disc 23 | XBOX | | Original | | IM-024 | |
| Official Xbox Magazine Game Disc 23 | XBOX | | Original | | IM-023 | |
| Official Xbox Magazine Game Disc 22 | XBOX | | Original | | IM-021 | |
| Official Xbox Magazine Game Disc 22 | XBOX | | Original | | IM-022 | |
| Official Xbox Magazine Game Disc 22 | XBOX | | Original | | IM-022 | |
| Official Xbox Magazine Game Disc 21 | XBOX | | Original | | IM-021 | |
| Official Xbox Magazine Game Disc 21 | XBOX | | Original | | IM-020 | |
| Official Xbox Magazine Game Disc 21 | XBOX | | Original | | IM-021 | |
| Official Xbox Magazine Game Disc 20 | XBOX | | Original | | IM-020 | |
| Official Xbox Magazine Game Disc 20 | XBOX | | Original | | IM-019 | |
| Official Xbox Magazine Game Disc 20 | XBOX | | Original | | IM-020 | |
| Official Xbox Magazine Game Disc 19 | XBOX | | Original | | IM-018 | |
| Official Xbox Magazine Game Disc 19 | XBOX | | Original | | IM-019 | |
| Official Xbox Magazine Game Disc 19 | XBOX | | Original | | IM-019 | |
| Official Xbox Magazine Game Disc 19 | XBOX | | Original | | IM-019 | |
| Official Xbox Magazine Game Disc 18 | XBOX | | Original | | IM-018 | |
| Official Xbox Magazine Game Disc 18 | XBOX | | Original | | IM-017 | |
| Official Xbox Magazine Game Disc 18 | XBOX | | Original | | IM-018 | |
| Official Xbox Magazine Game Disc 18 | XBOX | | Original | | IM-018 | |
| Official Xbox Magazine Game Disc 17 | XBOX | | Original | | IM-016 | |
| Official Xbox Magazine Game Disc 17 | XBOX | | Original | | IM-017 | |
| Official Xbox Magazine Game Disc 17 | XBOX | | Original | | IM-017 | |
| Official Xbox Magazine Game Disc 16 | XBOX | | Original | | IM-015 | |
| Official Xbox Magazine Game Disc 16 | XBOX | | Original | | IM-016 | |
| Official Xbox Magazine Game Disc 16 | XBOX | | Original | | IM-016 | |
| Official Xbox Magazine Game Disc 15 | XBOX | | | | IM-014 | |
| Official Xbox Magazine Game Disc 15 | XBOX | | Original | | IM-015 | |
| Official Xbox Magazine Game Disc 14 | XBOX | | Original | | IM-013 | |
| Official Xbox Magazine Game Disc 14 | XBOX | | Original | | IM-014 | |
| Official Xbox Magazine Game Disc 14 | XBOX | | Original | | IM-014 | |
| Official Xbox Magazine Game Disc 13 | XBOX | | Original | | IM-012 | |
| Official Xbox Magazine Game Disc 13 | XBOX | | Original | | IM-013 | |
| Official Xbox Magazine Game Disc 12 | XBOX | | | | IM-011 | |
| Official Xbox Magazine Game Disc 12 | XBOX | | Original | | IM-012 | |
| Official Xbox Magazine Game Disc 12 | XBOX | | Original | | IM-014 | |
| Official Xbox Magazine Game Disc 11 | XBOX | | Original | | IM-010 | |
| Official Xbox Magazine Game Disc 11 | XBOX | | Original | | IM-011 | |
| Official Xbox Magazine Game Disc 11 | XBOX | | Original | | IM-013 | |
| Official Xbox Magazine Game Disc 10 | XBOX | | | | IM-009 | |
| Official Xbox Magazine Game Disc 10 | XBOX | | Original | | IM-010 | |
| Official Xbox Magazine Game Disc 10 | XBOX | | Original | | IM-010 | |
| Official Xbox Magazine Game Disc 09 | XBOX | | Original | | IM-008 | |
| Official Xbox Magazine Game Disc 09 | XBOX | | Original | | IM-009 | |
| Official Xbox Magazine Game Disc 09 | XBOX | | Original | | IM-009 | |
| Official Xbox Magazine Game Disc 08 | XBOX | | Original | | IM-007 | |
| Official Xbox Magazine Game Disc 08 | XBOX | | Original | | IM-008 | |
| Official Xbox Magazine Game Disc 08 | XBOX | | Original | | IM-008 | |
| Official Xbox Magazine Game Disc 07 | XBOX | | | | IM-006 | |
| Official Xbox Magazine Game Disc 07 | XBOX | | Original | | IM-007 | |
| Official Xbox Magazine Game Disc 07 | XBOX | | Original | | IM-007 | |
| Official Xbox Magazine Game Disc 06 | XBOX | | Original | | IM-005 | |
| Official Xbox Magazine Game Disc 06 | XBOX | | Original | | IM-006 | |
| Official Xbox Magazine Game Disc 06 | XBOX | | Original | | IM-006 | |
| Official Xbox Magazine Game Disc 05 | XBOX | | Original | | IM-004 | |
| Official Xbox Magazine Game Disc 05 | XBOX | | Original | | IM-005 | |
| Official Xbox Magazine Game Disc 05 | XBOX | | Original | | IM-005 | |
| Official Xbox Magazine Game Disc 04 | XBOX | | Original | | IM-003 | |
| Official Xbox Magazine Game Disc 04 | XBOX | | Original | | IM-004 | |
| Official Xbox Magazine Game Disc 04 | XBOX | | Original | | IM-004 | |
| Official Xbox Magazine Game Disc 03 | XBOX | | Original | | IM-002 | |
| Official Xbox Magazine Game Disc 03 | XBOX | | Original | | IM-003 | |
| Official Xbox Magazine Game Disc 03 | XBOX | | Original | | IM-003 | |
| Official Xbox Magazine Game Disc 02 | XBOX | | Original | | IM-001 | |
| Official Xbox Magazine Game Disc 02 | XBOX | | Original | | IM-002 | |
| Official Xbox Magazine Game Disc 02 | XBOX | | Original | | IM-002 | |
| Official Xbox Magazine Game Disc 01 | XBOX | | Original | | IM-001 | |
| Official Xbox Magazine Best of Xbox Game Demos Vol. 1 | XBOX | | Original | | IM-026 | |
| The Official Xbox Live Disc | XBOX | | Original | | IM-001 | |
| The Official Xbox 50 Best Games 20 Games to Play | XBOX | | | | IM-001 | |
| Off-Road: Wide Open Test Drive Off-Road: Wide Open | XBOX | | Original | | IG-001 | |
| Oddworld: Strangers Vergeltung | XBOX | | Original | | EA-109 | |
| Oddworld: Stranger's Wrath | XBOX | | Original | | EA-109 | |
| Oddworld: Stranger's Wrath | XBOX | | Original | | EA-109 | |
| Oddworld: Munch's Oddysee | XBOX | | Platinum Hits | | MS-001 | |
| Oddworld: Munch's Oddysee | XBOX | | Original | | MS-001 | |
| Oddworld: Munch's Oddysee | XBOX | | Original | | MS-001 | |
| Oddworld: Munch's Oddysee | XBOX | | Original, Classics | | MS-001 | |
| Oddworld: Munch's Oddysee | XBOX | | Original | | MS-001 | |
| Oddworld: Munch's Oddysee | XBOX | | Original | | MS-001 | |
| Oddworld: La Fureur de l'Etranger Oddworld: Stranger's Wrath | XBOX | | Original | | EA-109 | |
| Obscure ObsCure | XBOX | | Original | | MI-009 | |
| Obscure ObsCure | XBOX | | Original | | MI-009 | |
| Obscure ObsCure | XBOX | | Original | | MI-009 | |
| Obscure ObsCure | XBOX | | Original | | MI-009 | |
| Ojousama Sousamou お嬢様捜査網 | PC-FX | | Original | | FXNHE616 | |
| Ookami-teki Monshou: Crest of Wolf 狼的紋章 クレスト・オブ・ウルフ | PCE | | Original | | HCD3044 | |
| Oyungezer: Mart 2010 | PC | | | | | |
| Overwatch | PC | | Origins Edition | | | |
| Overwatch | PC | | Game of the Year Edition, Legendary Edition | | 73052010US, S7302210 | |
| Overwatch | PC | | Origins Edition | | 052429 | |
| Overlord II | PC | 1.0 | Original | | MOVL2CDUS00 | |
| Overlord II | PC | | Original | | MOVL2CDEU00 | |
| Overclocked: Una Storia di Violenza | PC | 1.1 | Original | | | |
| Outward | PC | | Day One Edition | | 1024669LAINT, 103699 | |
| Ori and the Blind Forest: Definitive Edition | PC | 5.3.2.9582331 | Limited Edition | | | |
| The Orange Box (Disc 1) | PC | | Rerelease | | | |
| The Orange Box (Disc 1) | PC | | Rerelease | | | |
| Opowieści z Narnii: Książe Kaspian | PC | | Covermount | | | |
| Operation Flashpoint: Red River | PC | | Original | | MOFP3CDUS00 | |
| Operation Flashpoint: Red River | PC | 1.0 | Original | | MOFP3CDEU00 | |
| OnlineGamez | PC | | | | | |
| Omerta: City of Gangsters | PC | | Covermount | | G1DVD0215 | |
| Obduction | PC | 1.4.2 | Kickstarter | | | |
| Owlboy (Game Disc) | PC | 0.0.6152.604 | IndieBox | | | |
| Overlord: Raising Hell | PC | 1.3 | Original | | | |
| Overlord: Raising Hell | PC | 1.3 | Original | | MOVLRCDEU00 | |
| Overlord II | PC | | Preview Code | | | |
| Overlord II | PC | | Original | | | |
| Overlord | PC | 1.0 | Original | | MOVL1CDFC00 | |
| Overlord | PC | 1.2 | Original | | | |
| Overlord BGamer 153 (Side A) | PC | | Covermount | | | |
| Overlord | PC | 1.2 | Original | | MOVL1CDPL00 (DVD), POVL1CDPL03 (Box) | |
| Overlord | PC | | Original | | MOVL1CDEU00 | |
| OutRun 2006: Coast 2 Coast | PC | | Top Games | | SEGA-PC029 | |