4,382 GAMES
Oil Imperium 2.0
reLINE Software
1989
Strategy - Stock Market / Corporate
Low, High
ST, STe, TT
Oil Imperium [Re-release]
Rainbow Arts
1993
Oil Imperium
Erbe Software
[no publisher]
2021
Oilmania
Dencker-Barile
1991
Arcade - Collect'em!
Low
ST, STe
Oilmania [coverdisk]
ST Deluxe Disk Magazine
Old Towers
Oliver & Company
Coktel Vision
Arcade - Miscellaneous
System 4
Olympiad Collection (The)
Micro-Value
Sports - Multi-Event
Olympique de Marseille
Ocean Software
Sports - Soccer
STe Only
Olympus
Olympian Software
1990
Adventure / Arcade - 2-D
ST
Omnicron Conspiracy
Image Works
Adventure - Point and Click
First Star Software
Once upon a Time - Abracadabra
Adventure - Miscellaneous
Once upon a Time - Baba Yaga
Once upon a Time - Caperucita Roja
Once upon a Time - Le Petit Chaperon Rouge
One Step Beyond
Brain - Logical / Puzzle
Onslaught
Hewson
Shoot'em Up! - Horizontal Scrolling
Onslaught [Re-release]
Mirror Image
Silica Distribution Ltd.
Onyx [Licenceware]
Budgie UK
Operation Angelica [Licenceware]
Operation Harrier
US Gold
Shoot'em Up! - Multi-Directional
Operation Harrier [Re-release]
Kixx
Operation Hormuz
Again Again
Operation Hormuz [Re-release]
Alternative Software
Opération Jupiter
Infogrames
Simulation - Miscellaneous
Operation Neptune
Operation Neptune [Re-release]
Smash 16
Operation Thunderbolt
Shoot'em Up! - Crosshair
Operation Thunderbolt [Re-release]
Hit Squad (The)
1992
Operation: Cleanstreets
Brøderbund Software
Arcade - Beat'em Up!
Opus No 1
Arcade - Maze
High
Orbit 2000 [Budget]
Byte Back
Shoot'em Up! - Vertical Scrolling
Orbit 2000 [Re-release]
Oriental Games
Micro Style
Sports - Boxing / Martial Arts
Oriental Games [Re-release]
Original (The)
1994
Arcade - Boulder Dash
Low, VGA, RGB
ST, STe, TT, Falcon030
Original (The) [registered]
Delta Labs Media
1995
Ork
Psygnosis
Arcade - Platformer (Scrolling)
Ormet Kruper
Arcade - Snake
50 per page
![Oilmania [coverdisk]](https://www.atarimania.com/st/screens/oilmania.gif)
_micro-value.gif)
![Onyx [Licenceware]](https://www.atarimania.com/st/screens/onyx_budgie_uk.gif)
![Operation Angelica [Licenceware]](https://www.atarimania.com/st/screens/operation_angelica.gif)
![Operation Harrier [Re-release]](https://www.atarimania.com/st/screens/operation_harrier_kixx.png)
![Operation Thunderbolt [Re-release]](https://www.atarimania.com/st/screens/operation_thunderbolt_hit_squad_(the)_5.png)
![Orbit 2000 [Budget]](https://www.atarimania.com/st/screens/orbit_2000_byteback.gif)
_[no_publisher].png)
![Original (The) [registered]](https://www.atarimania.com/st/screens/original_(the)_registered_delta_labs_media_2.png)
