DOS (Page 480)
One-Nil Soccer Manager
Sports
One-Nil Soccer Manager '95
Sports
 (19xx).png)
One-Sale Manager Ru 19xx
Simulation
Onesimus- A Quest for Freedom
Action
Ono
Strategy
Ono
Action
Onslaught
Action
Oo-Topos
Adventure
Oo-Topos
Adventure
Ooze- Creepy Nitese
Adventure
Oozes
Action
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Operacja Glemp Pl
Adventure
Operation 'Just Because'
Strategy
Operation - Vulture
Action
Operation 1123-theta Virus
Adventure
Operation Black Diamond
Simulation
Operation Carnage
Action
Operation Carnage
Action
Operation Cleaner
Strategy
Operation Combat
Strategy
Operation Combat 2
Strategy
Operation Combat II- By Land, Sea and Air
Strategy
Operation Europe- Path to Victory 1939-45
Strategy
Operation Frog
Educational