O'Brien Vocabulary Placement Test (The)
(Educational Activities) | O'Riley's Mine
(Datasoft, Disk) | O'Riley's Mine
(US Gold, Tape) |
 | 
| 
|
|
Objective: Kursk
(SSI) | Objective: Kursk
(DKG) | Oblitroid
(KE-Soft) |
| | |
|
Obronca Ziemi
(Bajtek) | Observational Astronomy Program
(ANALOG Computing) | Obst
(Zong) |
| | |
|
OCI
(Tearsoft) | Oczko
(Tajemnice Atari) | Odd Man Out - Plurals
(ACE Newsletter) |
| | |
|
Odieus' Quest for the Magic Flingshot
| Odieus' Quest for the Magic Flingshot
(CTH Enterprises) | Odin
(Odesta) |
| | |
|
Odysseus
(?) | Odyssey in Time
(Krell Software) | Oelbaron
|
| | |
|
Oelsuche
(Happy Computer) | Ogre
(MicroProse Software (UK), Disk) | Ogre
(Origin Systems) |
| 
| |
|
Oh! Frankie!
| Ohm's Law
(Dynacomp) | Ohrozeni Britaniku
|
| | |
|
Oil Well
| Oil's Well
(Sierra On-Line, Cartridge) | Oil's Well
(Main Street Publishing) |
| 
| |
|
Oil's Well
(Aackosoft) | Oil-Panic
| Oil-Panic
(Computronic) |
| | |
|
Oklahoma Run
(Edupro) | Old MacDonald
| Old Saloon
(Happy Computer) |
| | |
|
Old Surehand
(CPU / Roeske Verlag) | Old Took's Secret (The)
(Computer Seen Software (The)) | Olde Gold
(New Atari User) |
| | |
|
Olde House (Ye)
([no publisher]) | Olin in Emerald
(Adventure International (USA), Disk) | Ollie's Follies
(American Eagle Software, Disk) |
| 
| 
|
|
Ollie's Follies
(Americana, Tape) | Olympia
| Olympiad
(Compute!) |
| | |
|
Olympic Dash
| Olympic Duel
| Olympic Skier
(Americana, Tape) |
| | 
|
|
Olympics
(Sir Video) | Omar
(Antic Software) | Omaze
([no publisher]) |
| | |
|
Omega
(SGM Software) | Omidor
| On Cue
(Mastertronic (UK), Tape) |
| | 
|
|
On Slaught [aka Klystron Raider]
| On-Track Computer Model Car Racing
(Gamestar, Disk) | One for the Road
(ANALOG Computing) |
| 
| |
|
One Life
| One Man and His Droid
(Mastertronic (UK), Tape) | One Moon and Two Suns
([no publisher]) |
| 
| |
|
One on One
(Compute!) | One-on-One
(Electronic Arts, Disk) | One-on-One
(Ariola (UK), Disk) |
| 
| 
|
|
One-on-One
(Ariola (UK), Tape) | One-on-One
(Atari (USA), Cartridge) | Onyx
(UtopiaSoft) |
| 
| |
|
Opera House / Qa!
(SECS) | Operacja "Pustynna Burza"
(Tajemnice Atari) | Operation Blood
(Mirage Software) |
| | |
|
Operation Blood [lg]
| Operation Crossroads
(Shoesoft) | Operation Desert Storm
|
| | |
|
Operation Market Garden
(SSI, Disk) | Operation Sabotage
(SoftSide Publications) | Operation Whirlwind
(Brøderbund Software, Disk) |
| | 
|
|
Operation Wolf II
| Operazione Tuono
(Lindasoft) | Oranges and Lemons
(KJB Programs) |
| | |
|
Orb
(Page 6 Magazine) | Orb of Zarramier (The)
(Futureware, Tape) | Orb Pinball
(New Atari User) |
| 
| |
|
Orbis Pictus - Anglictina
(DP) | Orbis Pictus - Nemcina
(DP, Tape) | Orbit
|
| 
| |
|
Orbit - A Trip to the Moon
(Antic Software) | Orbital Simulation
(West Valley Atari Users Group) | Orc Attack
(Thorn EMI (UK), Cartridge) |
| | 
|
|
Orc Attack
(Creative Sparks, Cartridge) | Orccon
| Ordralphabétix
(Hatier) |
| | |
|
Oregon Trail (The)
(Softswap) | Original Adventure
(LotsaBytes) | Original Adventure
(Howell, Robert) |
| | |
|
Orion Miner
(Home Computing Weekly) | Orson
(New Atari User) | Orthocrack 1
(Hatier) |
| | |
|
Orthocrack 2
(Hatier) | Orthocrack 3
(Hatier) | Orthographe
(Ecole Communale de Wihéries) |
| | |
|
Orto Puzzle
(Sikor Soft) | Ortografia
(Mirage Software) | Osadnicy
|
| | |
|
Ostfront (1941)
| Otello
(Tajemnice Atari) | |
| | |
