4
ONE
1
Action | 1 player | 1998
5
One Piece Grand Battle!
9
Fighting | 2 players | 2003
Oddballz: Your Wacky Computer Petz
Simulation | 1 player | 1996
3
OpenArena
6
FPS | 12 players | 2005
3
Obscure II
9
Survival - Horror | 2 players | 2007
Olympic Games: Atlanta 1996
1
Sports | 8 players | 1996
Obscure
3
Survival - Horror | 2 players | 2004
5
Operation Stealth
3
Adventure | 1 player | 1990
Otometeki Koi Kakumei * Love Revo!! DS
Visual novel | 1 player | 2006
OutRun 2 SP
1
Racing | 6 players | 2007
Ozzy & Drix
1
Action - Platformer | 1 player | 2003
One
1
Action - Shooter - Platformer | 1 player | 1997
Orcs & Elves
RPG | 1 player | 2007
Ogre Battle 64: Person of Lordly Caliber
2
Tactical - RPG | 1 player | 2000
Operation Neptune
Action - Edutainment | 1 player | 1991
Open Sonic
2
Action - Platformer | 1 player | 2010
Odoru Made in Wario
2
Other | 4 players | 2006
1
Out Run Europa
3
Racing | 1 player | 1991
Oretachi Game Center Zoku: Akumajou Dracula
Action - Platformer | 1 player | 2006
2
Ocarina of Time Spaceworld '97 Beta Experience
2
Action - Adventure | 1 player | 2021
One Piece: Going Baseball - Haejeok Yagu
Sports | 2 players | 2004
Oh No! More Lemmings
1
Puzzle | 1 player | 1991
Oddworld: Abe's Oddysee
5
Action - Platformer - Reflexion | 2 players | 1997
One Piece: Pirates' Carnival
5
Party game | 4 players | 2006
1
Onimusha: Blade Warriors
3
Fighting - Action | 4 players | 2004
2
Off Road Challenge
3
Racing | 2 players | 1997
1
Ogre Battle : The March of the Black Queen
1
RPG - Tactical | 1 player | 1995
Operation Jupiter
1
Action | 1 player | 1988
Okami
3
Action - Adventure | 1 player | 2008
OutRun
Racing | 1 player | 1991
Otona no Gal Jan: Kimi ni Hane Man
Adult - Board game | 1 player | 2003
Ore ga Omae o Mamoru
Action - Adventure - Platformer | 1 player | 2009
3
Operation Wolf
9
Shooter | 1 player | 1987
One Piece: Gigant Battle!
2
Fighting | 4 players | 2011
Ookami to Koushinryou: Boku to Holo no Ichinen
Simulation | 1 player | 2008
Ordyne
4
Shoot'em up | 2 players | 1988
1
OutRun 2006: Coast 2 Coast
8
Racing | 6 players | 2006
7
O.D.T.: Escape... Or Die Trying
19
Action - Adventure - RPG | 1 player | 1998
1
Out Run
9
Racing | 1 player | 1987
1
Odin Sphere
7
Action - RPG | 1 player | 2008
3
Oriental Legend
4
Beat'em up | 4 players | 1997
One Piece: Grand Adventure
10
Fighting | 2 players | 2006
Out of this World
Action - Adventure | 1 player | 1992
1
Omega Boost
3
Action - Shooter | 1 player | 1999
Oregon Trail for Windows
Adventure - Simulation - Edutainment | 1 player | 1996
1
Operation WinBack
3
Action | 2 players | 2001
4
OverBlood
5
Survival - Horror | 1 player | 1997
Olympic Gold: Barcelona '92
2
Sports | 4 players | 1992
OutRun 2019
Racing | 1 player | 1993
OutRun 2019
Racing | 1 player | 1993