Region | Title | System | Version | Edition | Languages | Serial | Status |
 | O.D.T. | PC | | Dice | | DCG 005509 |  |
 | Obscure II ObsCure II | PC | | Original | | |  |
 | Oddworld: Abe's Exoddus (CD Installieren) | PC | 2.0 | Original | | |  |
 | Oddworld: Abe's Exoddus (CD Abspielen) | PC | 2.0 | Original | | |  |
 | Oddworld: Munch's Oddysee | XBOX | | Original | | MS-001 |  |
 | Oddworld: Strangers Vergeltung | XBOX | | Original | | EA-109 |  |
 | Odin Sphere: Leifthrasir | PS3 | 01.00 | Original | | BLES-02241 |  |
 | Odyssee: Auf der Suche nach Odysseus (Disc 1) | PC | | Original | | ODY-GERCD1 |  |
 | Odyssee: Auf der Suche nach Odysseus (Disc 2) | PC | | Original | | ODY-GERCD2 |  |
 | Of Light and Darkness: The Prophecy (Disc 1) | PC | | Original | | |  |
 | Of Light and Darkness: The Prophecy (Disc 2) | PC | | Original | | |  |
 | Of Light and Darkness: The Prophecy (Disc 3) | PC | | Original | | |  |
 | Of Orcs and Men | XBOX360 | | Original | | FE-2009 |  |
 | Of Orcs and Men | PS3 | 01.01 | Original | | BLES-01586 |  |
 | Off Road | WII | | Original | | RVL-RO2P-EUR |  |
 | Off Road | PS2 | 1.01 | Original | | SLES-55032 |  |
 | Off-Road: Wide Open Test Drive Off-Road: Wide Open | XBOX | | Original | | IG-001 |  |
 | Off-Road: Wide Open Test Drive Off-Road: Wide Open | PS2 | 1.00 | Original | | SLES-50232 |  |
 | Offensive | PC | | Original | | |  |
 | Offroad Off-Road Redneck Racing | PC | | Original | | ECD 000592K |  |
 | Offroad Extreme! | PS2 | 1.01 | Original | | SLES-52751 |  |
 | Ogallala: Das Kartenspiel für PC | PC | | Original | | ECD000799D 00031111-001 |  |
 | Oil Tycoon | PC | 1.0 | Original | | |  |
 | Okano Software Classics: Volume 2 | PC | | Original | | |  |
 | Oldtimer: Erlebte Geschichte Teil II | PC | | Original | | |  |
 | Olympic Games: Atlanta 1996 | PC | | Original | | |  |
 | Omega Assault | PSX | | Original | | SLES-04051 |  |
 | One Piece: Pirate Warriors 3 | PS3 | 01.00 | Original | | BLES-02140 |  |
 | Onimusha 3 | PC | | Original | | 5004561 |  |
 | Open Season | XBOX | | Original | | US-097 |  |
 | Open Season | GC | | Original | | DL-DOL-GOSX-EUU |  |
 | Opera Fatal | PC | | Tandem | | 1444 |  |
 | Operation Barbarossa: The Struggle for Russia | PC | | Original | | |  |
 | Operation Mittelmeer | PC | | Original | | |  |
 | Operation WinBack 2: Project Poseidon | XBOX | | Original | | KO-008 |  |
 | The Operational Art of War II: 1956-2000 The Operational Art of War II: Bewaffnete Konflikten | PC | | Original | | |  |
 | The Operative: No One Lives Forever (Disc 1) | PC | 1.004 | Game of the Year Edition | | S0025036 |  |
 | The Operative: No One Lives Forever (Disc 2) | PC | 1.0 | Original | | FXX08903223D2 |  |
 | The Operative: No One Lives Forever (Disc 2) | PC | 1.004 | Game of the Year Edition | | S0025037 |  |
 | Opsys | PC | | Original | | |  |
 | The Orange Box | XBOX360 | | Original | | EA-2063 |  |
 | Order Up!! | PS3 | 01.04 | Original | | BLES-01470 |  |
 | Orion Burger | PC | | Abenteuer Doppelpack: Premier Collection | | MOBRLPGE72 |  |
 | Orion Burger | PC | | Original | | |  |
 | Oscar | PC | | Golden Zone | | |  |
 | Othello CD-ROM | PC | | Original | | |  |
 | Otto's Ottifanten | PC | | Original | | |  |
 | Outbreaker | PC | | Original | | |  |
 | Outer Ridge | PC | 1.0 | Original | | SPI004 |  |
 | The Outforce | PC | 1.0.0.0 | Original | | |  |
 | Outlaw Golf | XBOX | | Original | | TM-006 |  |
 | Outlaw Tennis | XBOX | | Original | | TT-118 |  |
 | Outlaws: Die Gesetzlosen (Disc 1) | PC | 1.1.1 | Original | | |  |
 | Outlaws: Die Gesetzlosen (Disc 2) | PC | 1.1.1 | Original | | |  |
 | Outpost | PC | | Original | | S390021012ZZ2 |  |
 | Outpost | PC | | Original | | S 390121012ZZZ |  |
 | Outpost | PC | 1.51 | Schweinepreise | | S390122CZ12ZZ |  |
 | Outrage | PC | | Original | | |  |
 | Outwars (Disc 1) | PC | 1.0 | Original | | 0398 Artikelnr. X00-14039 DE |  |
 | Outwars (Disc 2) | PC | 1.0 | Original | | 0398 Artikelnr. X00-14040 DE |  |
 | OverBlood 2 (Disc 1) | PSX | | Original | | SLES-01879 |  |
 | OverBlood 2 (Disc 2) | PSX | | Original | | SLES-11879 |  |
 | OverBlood 2 (Disc 2) | PSX | Rev 1 | Original | | SLES-12187 … |  |
 | Overboard! | PC | | Dice | | DCG 005752, DMM 005776 |  |
 | OverKill | PC | | ROMWARE | | ROM 10 007 |  |
 | Overlord: Raising Hell | PS3 | 01.00 | Original | | BLES-00257 |  |
 | O.D.T. | PC | | Original | | | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Obscure ObsCure | PC | | Original | | 71902134 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Obscure II ObsCure II | PS2 | 1.01 | Original | | SLES-54782 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Obsidian (Disc 1) | PC | | Original | | | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Obsidian (Disc 2) | PC | | Original | | | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Obsidian (Disc 3) | PC | | Original | | | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Obsidian (Disc 4) | PC | | Original | | | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Obsidian (Disc 5) | PC | | Original | | | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Oddworld: Abe's Oddysee | PC | 2.0 | Original | | IB2G-ODDG5 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Oddworld: Munch's Oddysee | XBOX | | Original, Classics | | MS-001 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Official Formula 1 Racing | PC | | Original | | | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Official PlayStation 2 Magazine Demo 33 | PS2 | 1.01 | | | SCED-51568 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Official PlayStation 2 Magazine Demo 45 | PS2 | 1.01 | | | SCED-52085 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Official PlayStation 2 Magazine Demo 48 | PS2 | 1.01 | | | SCED-52088 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Official PlayStation 2 Magazine Demo 51 Das Offizielle PlayStation 2 Magazin 11/2004: Uncut Edition | PS2 | 1.01 | | | SCED-52091 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Official PlayStation 2 Magazine: Special Edition 2004/01 | PS2 | 1.01 | | | SCED-52119 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Okage: Shadow King | PS2 | 1.01 | Original | | SCUS 97129 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Omega Boost | PSX | | Original | | SCES-02120 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Omerta: City of Gangsters | XBOX360 | | Original | | KY-2021 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | One Piece: Pirate Warriors | PS3 | 02.00 | Original, Essentials | | BLES-01672 … | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Onechanbara: Bikini Zombie Slayers | WII | Rev 1 | Original | | RVL-RONP-EUR | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Oni | PS2 | 1.02 | Original | | SLES-50177 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Open Season | PS2 | 1.01 | Original | | SLES-54316 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Open Season (Disc 1) | PC | 1.00 | Original | | 5004904-CD 1 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Open Season (Disc 2) | PC | 1.00 | Original | | 5004904-CD 2 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Open Season (Disc 3) | PC | 1.00 | Original | | 5004904-CD 3 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Operation Air Assault | PS2 | 1.01 | Original | | SLES-52572 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Operation Air Assault 2 | PS2 | 1.01 | Original | | SLES-54804 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Operation Flashpoint: Gold Upgrade | PC | 1.30 | Original, Gold Edition | | MOFUCDEU00, MOFUCDUS00 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Operation WinBack 2: Project Poseidon | PS2 | 1.00 | Original | | SLES-54116 … | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | The Operative: No One Lives Forever (Disc 1) | PC | 1.0 | Original | | FXX08903223D1 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | The Orange Box | PS3 | 01.00 | Original | | BLES-00171 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Othello | PC | | Original | | | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Outcast (Disc 1) | PC | | Play the Games Vol. 3 | | | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Outcast (Disc 2) | PC | | Play the Games Vol. 3 | | | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Outlaw Golf | PS2 | 1.01 | Original | | SLES-51926 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Outlaw Golf 2 | XBOX | | Original | | TT-023 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Outlaw Golf 2 | PS2 | 1.01 | Original | | SLES-52965 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Outlaw Volleyball | PS2 | 1.01 | Original | | SLES-52259 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Outlaw Volleyball Remixed | PS2 | 1.01 | Original | | SLES-53138 … | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Outlaws (Disc 1) | PC | 1.0 | Original | | | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Outlaws (Disc 2) | PC | 1.0 | Original | | | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Outlive | PC | 1.01 | Original | | | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Outpost 2: Geteilte Bestimmung | PC | 1.0 | Original | | S0011248 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | OutRun 2006: Coast 2 Coast | PC | 1.0 | Original | | SEGA-PC029 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | OverBlood 2 (Disc 1) | PSX | Rev 1 | Original | | SLES-01879 … | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | OverBlood 2 (Disc 2) | PSX | Rev 1 | Original | | SLES-11879 … | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | OverBlood 2 (Disc 1) | PSX | Rev 1 | Original | | SLES-02187 … | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Overboard! | PC | | Original | | | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |
 | Overboard! | PC | | Dice | | DCG 005752, DMM 005776 | ![2 and more dumps from original media [!] 2 and more dumps from original media [!]](/images/status/green.png) |