games starting with o, page 4
Orbitron
| Name | orbitron |
| Mfr | Comsoft (Signatron US... |
| Year | 1982 |
| Genre | N/A |
| Players | 2 |
| Status | good |
| DLs | 157 |
Orbs (10/7/94 prototype?)
| Name | orbs |
| Mfr | American Sammy |
| Year | 1994 |
| Genre | N/A |
| Players | 1 |
| Status | good |
| DLs | 187 |
Orchid Mist (0100849V, NSW/ACT)
| Name | orchidmsa |
| Mfr | Aristocrat |
| Year | 1999 |
| Genre | Fruit Machines |
| Players | 1 |
| Status | preliminary |
| DLs | 61 |
Orchid Mist (0101241V, New Zealand)
| Name | orchidmsnz |
| Mfr | Aristocrat |
| Year | 2000 |
| Genre | Fruit Machines |
| Players | 1 |
| Status | imperfect |
| DLs | 68 |
Orchid Mist (0200849V, NSW/ACT)
| Name | orchidms |
| Mfr | Aristocrat |
| Year | 1999 |
| Genre | Fruit Machines |
| Players | N/A |
| Status | preliminary |
| DLs | 137 |
Ordenador-TV (Spain)
| Name | ordentv |
| Mfr | Taikee / V-Tac |
| Year | 2007 |
| Genre | N/A |
| Players | N/A |
| Status | preliminary |
| DLs | 140 |
Ordisavant (France)
| Name | ordisava |
| Mfr | Video Technology / Yeno |
| Year | 1988 |
| Genre | N/A |
| Players | N/A |
| Status | preliminary |
| DLs | 83 |
Ordyne (Japan, English Version)
Organiser II Alpha POS 200
| Name | psionp200a |
| Mfr | Psion |
| Year | 1987 |
| Genre | N/A |
| Players | N/A |
| Status | imperfect |
| DLs | 82 |
Organiser II CM Multilingual
Organiser II LA Multilingual
Organiser II POS 200
Oriental Beauty (10213511, NSW/ACT)
| Name | orbeaut |
| Mfr | Aristocrat |
| Year | 2006 |
| Genre | Fruit Machines |
| Players | N/A |
| Status | preliminary |
| DLs | 115 |
Oriental Diamonds (Barcrest) (German) (MPU4) (RAB 0.1)
Oriental Legend / Xiyou Shi E Zhuan (ver. 105, Korean Board)
| Name | orlegend105k |
| Mfr | IGS |
| Year | 1997 |
| Genre | Beat-'Em-Up |
| Players | 4 |
| Status | imperfect |
| DLs | 207 |
Oriental Legend / Xiyou Shi E Zhuan (ver. 105, Taiwanese Board)
| Name | orlegend105t |
| Mfr | IGS |
| Year | 1997 |
| Genre | Beat-'Em-Up |
| Players | 4 |
| Status | imperfect |
| DLs | 215 |
Oriental Legend / Xiyou Shi E Zhuan (ver. 111, Chinese Board)
| Name | orlegend111c |
| Mfr | IGS |
| Year | 1997 |
| Genre | Beat-'Em-Up |
| Players | 4 |
| Status | imperfect |
| DLs | 167 |
Oriental Legend / Xiyou Shi E Zhuan (ver. 111, Korean Board)
| Name | orlegend111k |
| Mfr | IGS |
| Year | 1997 |
| Genre | Beat-'Em-Up |
| Players | 4 |
| Status | imperfect |
| DLs | 135 |
Oriental Legend / Xiyou Shi E Zhuan (ver. 111, Taiwanese Board)
| Name | orlegend111t |
| Mfr | IGS |
| Year | 1997 |
| Genre | Beat-'Em-Up |
| Players | 4 |
| Status | imperfect |
| DLs | 152 |
Oriental Legend / Xiyou Shi E Zhuan (ver. 112)
| Name | orlegende |
| Mfr | IGS |
| Year | 1997 |
| Genre | Beat-'Em-Up |
| Players | 4 |
| Status | imperfect |
| DLs | 194 |
Oriental Legend / Xiyou Shi E Zhuan (ver. 112, Chinese Board)
| Name | orlegendc |
| Mfr | IGS |
| Year | 1997 |
| Genre | Beat-'Em-Up |
| Players | 4 |
| Status | imperfect |
| DLs | 259 |
Oriental Legend / Xiyou Shi E Zhuan (ver. 126)
| Name | orlegend |
| Mfr | IGS |
| Year | 1997 |
| Genre | Beat-'Em-Up |
| Players | 4 |
| Status | imperfect |
| DLs | 2376 |
Oriental Legend / Xiyou Shi E Zhuan (ver. ???, Chinese Board)
| Name | orlegendca |
| Mfr | IGS |
| Year | 1997 |
| Genre | Beat-'Em-Up |
| Players | 4 |
| Status | imperfect |
| DLs | 186 |
Oriental Legend 2 (Korea) / Xiyou Shi E Zhuan Qunmoluanwu (World, China, Japan, Hong Kong, Taiwan) (ver. 203) [Oriental Ex]
| Name | oldsplus203 |
| Mfr | IGS |
| Year | 2004 |
| Genre | Beat-'Em-Up |
| Players | 4 |
| Status | preliminary |
| DLs | 472 |
Oriental Legend 2 (Korea) / Xiyou Shi E Zhuan Qunmoluanwu (World, China, Japan, Hong Kong, Taiwan) (ver. 205) [Oriental Ex]
| Name | oldsplus |
| Mfr | IGS |
| Year | 2004 |
| Genre | Beat-'Em-Up |
| Players | 4 |
| Status | preliminary |
| DLs | 3172 |
Oriental Legend 2 (V101, Oversea)
| Name | orleg2_101 |
| Mfr | IGS |
| Year | 2007 |
| Genre | Beat-'Em-Up |
| Players | 4 |
| Status | good |
| DLs | 920 |
Oriental Legend 2 (V103, Oversea)
| Name | orleg2_103 |
| Mfr | IGS |
| Year | 2007 |
| Genre | Beat-'Em-Up |
| Players | 4 |
| Status | good |
| DLs | 922 |
Oriental Legend 2 (V104, Oversea)
| Name | orleg2 |
| Mfr | IGS |
| Year | 2007 |
| Genre | Beat-'Em-Up |
| Players | 4 |
| Status | good |
| DLs | 18038 |
Oriental Legend Special / Xiyou Shi E Zhuan Super (ver. 100, set 1)
| Name | olds100 |
| Mfr | IGS |
| Year | 1998 |
| Genre | Beat-'Em-Up |
| Players | 4 |
| Status | preliminary |
| DLs | 421 |
Oriental Legend Special / Xiyou Shi E Zhuan Super (ver. 100, set 2)
| Name | olds100a |
| Mfr | IGS |
| Year | 1998 |
| Genre | Beat-'Em-Up |
| Players | 4 |
| Status | preliminary |
| DLs | 308 |
Oriental Legend Super / Xiyou Shi E Zhuan Super (ver. 101, Korean Board)
| Name | olds |
| Mfr | IGS |
| Year | 1998 |
| Genre | Beat-'Em-Up |
| Players | 4 |
| Status | preliminary |
| DLs | 3533 |
Orion 128 + Z80 Card II
Orion 128 + Z80 Card II (MS7007)
Orion 128 + Z80 Card II + IDE
Orion 128 + Z80 Card II + IDE (MS7007)
Orion TI-84 Plus (Boot Code 1.02)
| Name | ti84pov2 |
| Mfr | Texas Instruments |
| Year | 201? |
| Genre | N/A |
| Players | N/A |
| Status | preliminary |
| DLs | 60 |
Orion TI-84 Plus (Boot Code 1.03)
| Name | ti84pov3 |
| Mfr | Texas Instruments |
| Year | 201? |
| Genre | N/A |
| Players | N/A |
| Status | preliminary |
| DLs | 58 |
Orion TI-84 Plus (bootleg)
| Name | ti84pob |
| Mfr | Texas Instruments |
| Year | 201? |
| Genre | N/A |
| Players | N/A |
| Status | preliminary |
| DLs | 57 |
Orius (ver UAA)
| Name | orius |
| Mfr | Konami |
| Year | 1991 |
| Genre | Shoot-'Em-Up |
| Players | 2 |
| Status | imperfect |
| DLs | 207 |
Orlando Magic (BWB) (MPU4) (set 1)
Orlando Magic (BWB) (MPU4) (set 2)
| Name | m4orland__a |
| Mfr | BWB |
| Year | 199? |
| Genre | N/A |
| Players | N/A |
| Status | preliminary |
| DLs | 28 |
Orlando Magic (BWB) (MPU4) (set 3)
| Name | m4orland__b |
| Mfr | BWB |
| Year | 199? |
| Genre | N/A |
| Players | N/A |
| Status | preliminary |
| DLs | 30 |
Orlando Magic (BWB) (MPU4) (set 4)
| Name | m4orland__c |
| Mfr | BWB |
| Year | 199? |
| Genre | N/A |
| Players | N/A |
| Status | preliminary |
| DLs | 27 |
Orlando Magic (BWB) (MPU4) (set 5)
| Name | m4orland__d |
| Mfr | BWB |
| Year | 199? |
| Genre | N/A |
| Players | N/A |
| Status | preliminary |
| DLs | 26 |
Orlando Magic (BWB) (MPU4) (set 6)
| Name | m4orland__e |
| Mfr | BWB |
| Year | 199? |
| Genre | N/A |
| Players | N/A |
| Status | preliminary |
| DLs | 32 |
Orlando Magic (BWB) (MPU4) (set 7)
| Name | m4orland__f |
| Mfr | BWB |
| Year | 199? |
| Genre | N/A |
| Players | N/A |
| Status | preliminary |
| DLs | 30 |
Orlando Magic (BWB) (MPU4) (set 8)
| Name | m4orland__g |
| Mfr | BWB |
| Year | 199? |
| Genre | N/A |
| Players | N/A |
| Status | preliminary |
| DLs | 33 |
Orlando Magic (BWB) (MPU4) (set 9)
| Name | m4orland__h |
| Mfr | BWB |
| Year | 199? |
| Genre | N/A |
| Players | N/A |
| Status | preliminary |
| DLs | 32 |
Osborne-1 (Nuevo Video)
| Name | osborne1nv |
| Mfr | Osborne/Nuevo |
| Year | 1984 |
| Genre | N/A |
| Players | N/A |
| Status | good |
| DLs | 52 |
Osborne-1 with SCREEN-PAC
| Name | osborne1sp |
| Mfr | Osborne |
| Year | 1983 |
| Genre | N/A |
| Players | N/A |
| Status | good |
| DLs | 40 |
Oscar (0100348V, NSW/ACT)
| Name | oscara5a |
| Mfr | Aristocrat |
| Year | 1996 |
| Genre | Fruit Machines |
| Players | 1 |
| Status | imperfect |
| DLs | 61 |
Oscar (0200348V, NSW/ACT)
| Name | oscara5 |
| Mfr | Aristocrat |
| Year | 1996 |
| Genre | Fruit Machines |
| Players | N/A |
| Status | preliminary |
| DLs | 124 |
Oshiri Tantei - Puputto Kaiketsu Game (Japan)
Otakara Itadaki Luffy Kaizoku-Dan! (Japan, v1.02)
| Name | lufykzku |
| Mfr | Banpresto / Eiichiro ... |
| Year | 2001 |
| Genre | N/A |
| Players | 1 |
| Status | good |
| DLs | 164 |
Otenami Haiken (V2.04J 1999/02/01 18:00:00)
| Name | otenamih |
| Mfr | Success |
| Year | 1999 |
| Genre | Mini-Games |
| Players | 2 |
| Status | imperfect |
| DLs | 422 |
Otenami Haiken Final (V2.07JC 2005/04/20 15:36)
| Name | otenamhf |
| Mfr | Success / Warashi |
| Year | 2005 |
| Genre | Mini-Games |
| Players | 2 |
| Status | imperfect |
| DLs | 564 |
Otenki Kororin (V2.01J 2001/07/02 10:00)
Othello (version 3.0)
Othello Derby (Japan)
Othello Multivision FG-1000
| Name | omv1000 |
| Mfr | Tsukuda Original |
| Year | 1984 |
| Genre | N/A |
| Players | N/A |
| Status | good |
| DLs | 87 |
Othello Multivision FG-2000
| Name | omv2000 |
| Mfr | Tsukuda Original |
| Year | 1984 |
| Genre | N/A |
| Players | N/A |
| Status | good |
| DLs | 77 |
Othello Shiyouyo (J 980423 V1.002)
Oak Technology OTI-64111 "Spitfire"
| Name | oti64111_pci |
| Mfr | ? |
| Year | ???? |
| Genre | N/A |
| Players | N/A |
| Status | ???? |
| DLs | 132 |
Otogizoushi Urashima Mahjong (Japan)
Otomedius (ver GGG:J:A:A:2008041801)
Otona no Mahjong (Japan 880628)
Ougon no Shiro (Japan)
| Name | ogonsiro |
| Mfr | Allumer / Taito Corpo... |
| Year | 1986 |
| Genre | N/A |
| Players | 2 |
| Status | good |
| DLs | 244 |
Oui-Oui - Pocket Dream Console (VideoJet, France)
| Name | ouipdc |
| Mfr | Conny / VideoJet |
| Year | 2008 |
| Genre | N/A |
| Players | N/A |
| Status | imperfect |
| DLs | 292 |
Out Run (deluxe sitdown earlier version)
Out Run (deluxe sitdown)
Out Run (deluxe sitdown) (Enhanced Edition v1.0.3)
| Name | outrundxeha |
| Mfr | hack (Chris White) |
| Year | 2013 |
| Genre | Driving |
| Players | 1 |
| Status | good |
| DLs | 218 |
Out Run (deluxe sitdown) (Enhanced Edition v2.0.3)
| Name | outrundxeh |
| Mfr | hack (Chris White) |
| Year | 2020 |
| Genre | Driving |
| Players | 1 |
| Status | good |
| DLs | 398 |
