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RomName Publisher Year Country PlatForm
O'ConnerSanta Claus Software1990
O'Mac FarmerMass Tael1984
OLIONThinking Rabbit2018
OLIONTiny Yarou2018
ObliteratorMelbourne House / New Frontier1989
OceanoEgoTrip2015
Odyssey-KRittor Music / MCS-
OgreSystem Soft1986
OhFive Finger Punch2016
Oh Mummy!Longman1984
Oh Shit!Aackosoft1986
Oil's WellSierra On Line1985
Oil's WellSierra On Line1984
Old Skool DemoGuy Foster2005
Omega RaceColeco1983
One on One BasketballMicro Fun1984
One-On-OneMicro Fun1984
OpenMSX SystemRomsUnknown-
Operation CrossbowKaroshi Corporation2011
Operation WolfToybox2006
OpticsAl Alamiah1985
OrbitParker Brothers1983
OrganizerBarq1987
OrgussSega1984
Ostrich Farmerhardhat2007
OthelloPony Canyon1985
Othello CompeticaoA&L Soft2003
Other System RomsUnknown-
Our Arabic WorldAl Alamiah1987
Our CountryBarq1987
Our GloriesBarq1987
Outland PerspectiveMagicalZoo1987
OutroydStratford Computer Center1985
OutrunSega1988
Oyoide TangoHAL Laboratory1984