![[ICO]](/icons/blank.gif) | Name | Size | Description |
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![[PARENTDIR]](/icons/back.gif) | Parent Directory | - | |
![[ ]](/icons/unknown.gif) | OTAN Alerta! (1984)(Juegos & Estrategia)(es)[aka NATO Alert].z80 | 30K | |
| O_K_ Yah! (1988)(Pirate Software).z80 | 33K | |
| O_K_ Yah! (1988)(Pirate Software)[a].z80 | 33K | |
| Oberon 69 (1990)(G_LL_ Software)(es).z80 | 42K | |
| Oberon 69 (1990)(G_LL_ Software)(es)[a].z80 | 42K | |
| Objetivo - La Moncloa (1985)(Software Center)(es).z80 | 41K | |
| Obliterator (1989)(Melbourne House)(128k).z80 | 46K | |
| Obliterator (1989)(Melbourne House)(128k)[a].z80 | 41K | |
| Obliterator (1989)(Melbourne House).z80 | 37K | |
| Obliterator (1989)(Melbourne House)[a2].z80 | 37K | |
| Obliterator (1989)(Melbourne House)[a].z80 | 40K | |
| Oblivion (1986)(Alpha-Omega Software).z80 | 29K | |
| Ocean Conqueror (1987)(Rack-It).z80 | 41K | |
| Ocean Conqueror (1987)(Rack-It)[a].z80 | 41K | |
| Ocean Dancer (1984)(King Software).z80 | 30K | |
| Octagon (1987)(Budgie Budget Software).z80 | 40K | |
| Octagon (1987)(Budgie Budget Software)[a].z80 | 40K | |
| Octan (1987)(Silverbird Software).z80 | 41K | |
| Octopus Life (1999)(CSSCGC).z80 | 7.8K | |
| Odd Ball (1987)(The Power House).z80 | 26K | |
| Odd Ball (1987)(The Power House)[a].z80 | 26K | |
| Odd Job Eddie (1985)(Strobe).z80 | 31K | |
| Odd Job Eddie (1986)(Tynesoft)(128k)[re-release].z80 | 51K | |
| Odisea (1990)(Juana Pueblo Soft)(es)(Part 1 of 2).z80 | 32K | |
| Odisea (1990)(Juana Pueblo Soft)(es)(Part 2 of 2).z80 | 31K | |
| Odyssee (19xx)(-)(de).z80 | 35K | |
| Odyssey of Hope, The (1984)(Martech Games).z80 | 37K | |
| Official Father Christmas, The (1989)(Alternative Software).z80 | 32K | |
| Oh Mummy!! (1986)(Sinclair Research).z80 | 19K | |
| OiX (1984)(Jaroslaw Cichocki)(pl).z80 | 21K | |
| Oink! - Piggy Tales (1987)(CRL Group).z80 | 23K | |
| Oink! - Piggy Tales (1987)(CRL Group)[a2].z80 | 23K | |
| Oink! - Piggy Tales (1987)(CRL Group)[a].z80 | 23K | |
| Ole, Toro (1985)(Americana Software)[re-release].z80 | 37K | |
| Ole, Toro (1985)(Dinamic Software)(es).z80 | 35K | |
| Ole, Toro (1985)(Dinamic Software)(es)[a].z80 | 31K | |
| Olimpo en Guerra (1989)(Eduardo Jose Villalobos)(es).z80 | 39K | |
| Olli & Lissa - The Ghost of Shilmoore Castle (1986)(Firebird Softwa..> | 40K | |
| Olli & Lissa - The Ghost of Shilmoore Castle (1986)(Firebird Softwa..> | 35K | |
| Olli & Lissa - The Ghost of Shilmoore Castle (1986)(Firebird Softwa..> | 40K | |
| Olli & Lissa II - Halloween (1987)(Silverbird Software).z80 | 42K | |
| Olli & Lissa III - The Candlelight Adventure (1989)(Codemasters).z80 | 41K | |
| Olli & Lissa III - The Candlelight Adventure (1989)(Codemasters)[a]..> | 41K | |
| Olympiad '86 (1986)(Atlantis Software).z80 | 29K | |
| Olympiad '86 (1986)(Atlantis Software)[a].z80 | 29K | |
| Olympicon (1984)(Mitec).z80 | 40K | |
| Olympics (1984)(CRL Group)(Part 1 of 2).z80 | 39K | |
| Olympics (1984)(CRL Group)(Part 2 of 2).z80 | 38K | |
| Olympimania (1984)(Automata UK).z80 | 29K | |
| Olympimania (1984)(Automata UK)[a].z80 | 31K | |
| Omega 2 (19xx)(-).z80 | 32K | |
| Omega One (1987)(Mastertronic).z80 | 43K | |
| Omega One (1987)(Mastertronic)[a].z80 | 43K | |
| Omega Run (1983)(CRL Group).z80 | 39K | |
| Omega Zone, The (1991)(Peter Curtis).z80 | 34K | |
| Omega Zone, The (1991)(Peter Curtis)[a].z80 | 34K | |
| Ometron (1983)(Software Projects).z80 | 24K | |
| Ometron (1983)(Software Projects)[a].z80 | 48K | |
| On Cue (1987)(Mastertronic Added Dimension).z80 | 17K | |
| On Cue (1987)(Mastertronic Added Dimension)[a].z80 | 17K | |
| One Arm Bandit (1985)(Argus Press Software).z80 | 20K | |
| One Man and his Droid (1985)(Mastertronic).z80 | 19K | |
| One Man and his Droid (1985)(Mastertronic)[a2].z80 | 19K | |
| One Man and his Droid (1985)(Mastertronic)[a3].z80 | 19K | |
| One Man and his Droid (1985)(Mastertronic)[a4].z80 | 19K | |
| One Man and his Droid (1985)(Mastertronic)[a].z80 | 19K | |
| One Queen Puzzle, The (1999)(CSSCGC).z80 | 4.2K | |
| One for the Road (1986)(Tynesoft).z80 | 7.4K | |
| One of Our Wombats is Missing! (1990)(Zenobi Software).z80 | 39K | |
| One of Our Wombats is Missing! (1990)(Zenobi Software)[a].z80 | 39K | |
| One on One (1985)(Ariolasoft UK).z80 | 33K | |
| On the Oche (1984)(Artic Computing).z80 | 20K | |
| On the Run (1985)(Design Design Software).z80 | 32K | |
| On the Run (1985)(Design Design Software)[a].z80 | 33K | |
| Oops (1988)(The Big Apple Entertainment Company).z80 | 20K | |
| Open Door (1988)(Tartan Software).z80 | 40K | |
| Operation Gunship (1989)(Codemasters).z80 | 41K | |
| Operation Gunship (1989)(Codemasters)[a].z80 | 41K | |
| Operation Hormuz (1989)(Again Again)(128k).z80 | 47K | |
| Operation Hormuz (1989)(Again Again).z80 | 41K | |
| Operation Nightingale (1985)(Softly Softly).z80 | 38K | |
| Operation Thunderbolt (1989)(Ocean Software)(128k).z80 | 113K | |
| Operation Thunderbolt (1989)(Ocean Software).z80 | 39K | |
| Operation Wolf (1988)(Ocean Software)(128k).z80 | 119K | |
| Operation Wolf (1988)(Ocean Software)(128k)[a2].z80 | 119K | |
| Operation Wolf (1988)(Ocean Software)(128k)[a3].z80 | 116K | |
| Operation Wolf (1988)(Ocean Software)(128k)[a].z80 | 117K | |
| Operation Wolf (1988)(Ocean Software).z80 | 38K | |
| Oppressed Land, The (1994)(Zenobi Software).z80 | 39K | |
| Ora Jatek (1996)(Laszlo Nyitrai)(128k)(hu).z80 | 14K | |
| Oracle's Cave, The (1984)(Doric Computer Services).z80 | 42K | |
| Oracle's Cave, The (1984)(Doric Computer Services)[a].z80 | 40K | |
| Orbit (1996)(CSSCGC).z80 | 2.1K | |
| Orbiter (1982)(Silversoft)(16k).z80 | 9.2K | |
| Orbiter (1982)(Silversoft)(16k)[a].z80 | 9.2K | |
| Orbix the Terrorball (1986)(Streetwise).z80 | 33K | |
| Orbix the Terrorball (1986)(Streetwise)[a].z80 | 36K | |
| Orc Attack (1984)(Creative Sparks).z80 | 23K | |
| Orc Attack (1984)(Creative Sparks)[a].z80 | 23K | |
| Orc Island (1984)(Double Play Adventures).z80 | 27K | |
| Orc Island (1984)(Double Play Adventures)[a].z80 | 27K | |
| Organ (19xx)(-).z80 | 8.1K | |
| Oriental Hero (1987)(Firebird Software).z80 | 40K | |
| Oriental Hero (1987)(Firebird Software)[a].z80 | 38K | |
| Orion (1983)(Software Projects).z80 | 21K | |
| Orion (1983)(Software Projects)[a].z80 | 21K | |
| Orstalon, The (1992)(Mark Evans)(128k)[incomplete].z80 | 78K | |
| Osten (1984)(JC Jumbo Data)(16k)(dk).z80 | 6.9K | |
| Osvajanje Zvedza (19xx)(-)(cs).z80 | 3.8K | |
| Ot Egy Sorban (1998)(Laszlo Nyitrai)(hu).z80 | 27K | |
| Othello (1998)(Laszlo Nyitrai)(128k)(hu).z80 | 18K | |
| Othello (1998)(Laszlo Nyitrai)(hu).z80 | 27K | |
| Out Run (1988)(US Gold)(128k).z80 | 31K | |
| Outcast (1987)(CRL Group).z80 | 38K | |
| Out for the Count (1989)(Dynamite Designs).z80 | 31K | |
| Outlaw (1990)(Players Premier Software)(128k).z80 | 59K | |
| Outlaws (19xx)(-).z80 | 17K | |
| Out of This World (1987)(Reaktor).z80 | 35K | |
| Out of the Limelight (1992)(Zenobi Software).z80 | 37K | |
| Out of the Shadows (1984)(Mizar Computing).z80 | 30K | |
| Out of the Shadows (1984)(Mizar Computing)[a2].z80 | 30K | |
| Out of the Shadows (1984)(Mizar Computing)[a].z80 | 30K | |
| Overboard (1996)(CSSCGC).z80 | 4.7K | |
| Overkill (1988)(Atlantis Software).z80 | 40K | |
| Overlander (1988)(Elite Systems)(128k).z80 | 51K | |
| Overlander (1988)(Elite Systems).z80 | 41K | |
| Overlander (1988)(Elite Systems)[a].z80 | 41K | |
| Overlord (1988)(CCS).z80 | 35K | |
| Overlords (1985)(MC Lothlorien).z80 | 18K | |
| Oxo (1998)(Laszlo Nyitrai)(128k)(hu).z80 | 9.6K | |
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