25 GAMES
Obsession
[no publisher]
1991
Gambling - Yahtzee
High
ST, STe
Oel Imperium (Das) 1.0
1987
Strategy - Stock Market / Corporate
Ohr-Helden
1990
Education - Music
Oil Imperium 2.0
reLINE Software
1989
Low, High
ST, STe, TT
Oilis Hyperworm 1.3
ST Deluxe Disk Magazine
Arcade - Snake
Ökolopoly
Studiengruppe für Biologie und Umwelt GmbH
Education - Science / Nature
Oliver & Company
Coktel Vision
Arcade - Miscellaneous
Low
Omar Sharif's Bridge
Oxford Softworks
Cards - Bridge
Medium
On Safari [Re-release]
Action Sixteen
Shoot'em Up! - Crosshair
On the Road
Lifetimes
Simulation - Miscellaneous
Low, Medium
Once upon a Time - Abracadabra
Adventure - Miscellaneous
Once upon a Time - Baba Yaga
Once upon a Time - Le Petit Chaperon Rouge
Only Valency 6
1994
Brain - Solitaire
Low, VGA
ST, STe, TT, Falcon030
Ooze
Ariolasoft (Germany)
1988
Adventure - Text
Low, Medium, High
Operation Hongkong
HGSS-Productions
Adventure - Text / Graphics
Opus No 1
Arcade - Maze
Ostern 2000
1999
Board Game - Miscellaneous
Othello Killer
Ubi Soft
Board Game - Reversi
Oxyd
Dongleware
1992
Brain - Logical / Puzzle
Oxyd [monochrome]
Oxyd [preview]
Oxyd II
Oxyd Magnum!
1993
Oxyd Magnum! [CD-ROM]
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![On Safari [Re-release]](https://www.atarimania.com/st/screens/on_safari.gif)
![Oxyd [monochrome]](https://www.atarimania.com/st/screens/oxyd_mono.gif)
![Oxyd [preview]](https://www.atarimania.com/st/screens/oxyd_preview_monochrome_dongleware.gif)
