60 GAMES
O'Brien Vocabulary Placement Test (The)
Educational Activities, Inc.
?
Education - Reading
O'Riley's Mine
Datasoft
1983
Arcade - Collect'em!
US Gold
1984
MCC
Obcy
Blue Kitten Software
2007
Arcade - Miscellaneous
Obrona Ziemi
2008
Shoot'em Up! - Miscellaneous
Obronca Ziemi
Bajtek
1990
Obstacle
Dilithium Press
Arcade - Tron
Ocean Detox
[no publisher]
2010
Shoot'em Up! - Bomber
OCI
Tearsoft
1988
Adventure - Text
Octopus
ArSoft Corporation
2011
Odd Man Out
Antic
Education - Introductory
Oggs Eggs
Computer & Video Games
1985
Ohm's Law
Dynacomp
1982
Education - Miscellaneous
Ohrožení Brittaniku
1991
Oil Business
1994
Strategy - Stock Market / Corporate
Oil's Well
Sierra On-Line
Main Street Publishing
1986
Aackosoft
Oilgame Deluxe
Flop
2012
Old MacDonald
ACE Newsletter
Old Took's Secret (The)
Computer Seen, Inc. (The)
[unknown]
Olympiad
Compute!
Olympian
Sports - Athletics
Omar
Antic Software
Board Game - Miscellaneous
Omidor
Compy-Shop Magazin
1989
On the Piste
Games Computing
Sports - Skiing
On-Track Computer Model Car Racing
Gamestar
Racing - Overhead
One for the Road
ANALOG Computing
One Moon and Two Suns
2006
Arcade - Platformer (Scrolling)
Onslaught
Shoot'em Up! - Vertical Scrolling
Operacja "Pustynna Burza"
Tajemnice Atari
Shoot'em Up! - Horizontal Scrolling
Opération Base III
Shoot'em Up! - Crosshair
Operazione Tuono
Lindasoft
Orb
Page 6
Shoot'em Up! - 3-D
Orbis Pictus - Anglictina
DP
Education - Foreign Language
Orbis Pictus - Nemcina
Orbital Defense
Orbital Simulation
West Valley Atari Users Group
Education - Chemistry / Physics
Orbits
Interface Age
1980
Orioles Baseball
Sports - Baseball
Orthographe
École Communale de Wihéries
Education - Spelling
Osmosis
Cards - Solitaire
OTB
Gambling - Racing
Othello
1981
Board Game - Reversi
TAB Books
Friday Fun Software
Othello 3-D
Our Solar System
RPS Corporation
Education - Space / Astronomy