104 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
OakGraph
Oak Forest Software, Inc.
[unknown]
OakSpell
Education - Spelling
Obcy
Blue Kitten Software
2007
Arcade - Miscellaneous
Objective: Kursk
Strategic Simulations, Inc.
Strategy - Wargame
DKG
Obrona Ziemi
2008
Shoot'em Up! - Miscellaneous
Obronca Ziemi
Bajtek
1990
Obst
Zong
1992
Arcade - Catch'em!
Obstacle
Dilithium Press
Arcade - Tron
Occult Numbers
ERACE
Brain - Mastermind
Occupational Interest Matching
Career Research Corporation
1985
Education - Miscellaneous
Occupations
Aim Software
OCI
Tearsoft
1988
Adventure - Text
Octane
Project SERAPHIM
Education - Chemistry / Physics
Octopus
Odd Man Out
Antic
Education - Introductory
Odin
Odesta
1982
Board Game - Reversi
Odysseus
Pinball - Pinball Construction Set
Oggs Eggs
Computer & Video Games
Ohm's Law
Dynacomp
Ohrožení Brittaniku
[no publisher]
1991
Oil Business
1994
Strategy - Stock Market / Corporate
Oil Derrick
Oil Wells
Sears
1979
Oil's Well
Sierra On-Line
Main Street Publishing
1986
Aackosoft
OK Corral
Atari Computing
Shoot'em Up! - Duel
Old Forty-Niner
Interface Publications
Board Game - Miscellaneous
Old MacDonald
ACE Newsletter
Old Testament of the Holy Bible (The)
Computers as Tutors!
Education - Religion / Esoterism
Old Took's Secret (The)
Computer Seen, Inc. (The)
Old-Surehand
CPU / Roeske Verlag
Olin in Emerald
Adventure International
Adventure - Selectable Answers
Olympiad
Compute!
Olympian
Sports - Athletics
Olympic Dash
Olympic Dual
Stanton, Jeffrey
Omaha Holdem Poker
Martin, G.
Cards - Poker
Omar
Antic Software
On the Piste
Games Computing
Sports - Skiing
On-Track Computer Model Car Racing
Gamestar
Racing - Overhead
One Arm Bandit
SLCC Journal
Gambling - Slot Machine
One for the Road
ANALOG Computing
One Moon and Two Suns
2006
Arcade - Platformer (Scrolling)