Found 73 games.
| O i X |
 
| | Year: | 1987 | | | | Publisher: | Krajowa Agencja Wydawnicza (KAW)
| | | | Author: | Jarosław Cichocki
| | | | Genre: | Hi-Res game Logical Single Screen Tic-Tac-Toe
| | | | Controller: | Joystick
| | | | Players: | 1 | | |
|
| O'riley's Mine |
 
| | Year: | 1983 | | | | Publisher: | Datasoft US Gold
| | | | Developer: | --
| | | | Author: | Mark Riley
| | | | Genre: | Arcade Collect'em Single Screen
| | | | Controller: | Joystick Keyboard
| | | | Players: | 2 | | |
|
| Obcy |
  
| | Year: | 2007 | | | | Publisher: | Blue Kitten Software
| | | | Developer: | --
| | | | Author: | Sławomir Woźniak (Bluki)
| | | | Genre: | Arcade
| | | | Controller: | Joystick Keyboard
| | | | Players: | 1 | | | | Language: | BASIC
| | | | Comment: | Atari version of "Obcy" - ZX-81 game (1989) (IKS, issue 1/1989). | | |
|
| Oblitroid |
  
| | Year: | 1989 | | | | Developer: | KE-Soft
| | | | Author: | Kemal Ezcan (Yoda Zhang)
| | | | Controller: | Joystick
| | | | Players: | 1 | | | | Language: | Turbo BASIC XL
| | |
|
| Obrona |
  
| | Genre: | Arcade Shoot'em Up Shooting Single Screen
| | | | Controller: | Joystick
| | | | Players: | 1 | | | | Language: | BASIC
| | |
|
| Obrona Ziemi |
   
| | Year: | 2008 | | | | Publisher: | Blue Kitten Software
| | | | Developer: | --
| | | | Author: | Sławomir Woźniak (Bluki)
| | | | Genre: | Arcade Hi-Res game Shoot'em Up Shooting Single Screen
| | | | Controller: | Joystick Keyboard
| | | | Players: | 1 | | | | Language: | Turbo BASIC XL
| | |
|
| Obrońca Ziemi |
 
| | Year: | 1990 | | | | Publisher: | Bajtek
| | | | Developer: | --
| | | | Author: | Piotr Karpiuk
| | | | Genre: | Arcade Shooting Single Screen
| | | | Players: | 1 | | | | Language: | BASIC
| | | | Comment: | Bajtek, issue 53-54, 07-08.1990. | | |
|
| Obwody |
 
| | Year: | 1994 | | | | Developer: | --
| | | | Author: | Jacek Ziętek
| | | | Genre: | ASCII graphic Logical
| | | | Controller: | Keyboard
| | | | Players: | 1 | | | | Language: | BASIC
| | |
|
| Ocean Detox |
   
| | Year: | 2010 | | | | Publisher: | --
| | | | Developer: | --
| | | | Author: | Marek Pavlík (Mapa)
| | | | Genre: | Arcade Shooting Submarine
| | | | Controller: | Joystick
| | | | Players: | 1 | | |
|
| Ochos Locos |
  
| | Author: | Marco Antonio Checa
| | | | Genre: | Cards Hi-Res game
| | | | Controller: | Keyboard
| | | | Players: | 1 | | | | Language: | BASIC
| | |
|
| OCI |
  
| | Year: | 1988 | | | | Publisher: | Tearsoft
| | | | Developer: | --
| | | | Author: | Stuart Tomlinson
| | | | Genre: | Adventure Text
| | | | Controller: | Keyboard
| | | | Players: | 1 | | | | Language: | BASIC
| | |
|
| Octopus |
   
| | Year: | 2011 | | | | Developer: | --
| | | | Author: | Arkadiusz Lubaszka (Larek) (ArSoft)
| | | | Genre: | Arcade
| | | | Controller: | Joystick
| | | | Players: | 1 | | |
|
| Oczko |
  
| | Genre: | ASCII graphic Cards Gambling
| | | | Controller: | Keyboard
| | | | Players: | 1 | | | | Language: | BASIC
| | |
|
| Oczko |
  
| | Year: | 1991 | | | | Publisher: | Tajemnice Atari
| | | | Developer: | --
| | | | Author: | Dariusz Żołna (De Jet)
| | | | Genre: | ASCII graphic Cards Gambling
| | | | Controller: | Keyboard
| | | | Players: | 1 | | | | Language: | Assembler
| | | | Comment: | Tajemnice Atari, issue 8, 08.1991.
On title screen: [-] [+] to set target result or any key to start game.
during game:
[ESC] - exit game
[CLEAR] - go back to title screen
[RETURN] - get next card
[SPACE] - end of taking cards | | |
|
| Oczopląs |
  
| | Year: | 2015 | | | | Publisher: | --
| | | | Developer: | --
| | | | Author: | Marek Ogłodek (Koala)
| | | | Genre: | Arcade
| | | | Controller: | Joystick
| | | | Players: | 1 | | |
|
| Odd Man Out. Plurals |
     
| | Year: | 1983 | | | | Publisher: | ACE Newsletter
| | | | Author: | Wayne Real
| | | | Genre: | Educational Words
| | | | Controller: | Joystick
| | | | Players: | 1 | | | | Language: | BASIC
| | |
|
| Odieus' Quest for the Magic Flingshot |
 
| | Publisher: | Closer To Home Enterprises (CTH Ent.)
| | | | Genre: | Adventure Text
| | | | Controller: | Keyboard
| | | | Players: | 1 | | |
|
| Odin |
  
| | Publisher: | Odesta
| | | | Developer: | Alpha-Beta Software Group
| | | | Author: | Larry Atkin Peter Frey
| | | | Genre: | Board Hi-Res artifacts Hi-Res title screen Logical Reversi
| | |
|
| Odwracanka |
 
| | Year: | 1986 | | | | Genre: | ASCII graphic Board Logical Reversi Single Screen
| | | | Controller: | Keyboard
| | | | Language: | BASIC
| | |
|
| Odwracanka |
  
| | Year: | 1998 | | | | Author: | Arkadiusz Lubaszka (Larek) (ArSoft)
| | | | Genre: | Hi-Res game Logical Reversi
| | | | Controller: | Joystick Mouse (C64)
| | | | Players: | 1 | | | | Language: | Turbo BASIC XL
| | |
|
| Odysseus |
 
| | Genre: | Arcade Hi-Res game Pinball Pinball Construction Set Single Screen
| | | | Controller: | Paddles
| | | | Players: | 4 | | |
|
| Oelbaron |
     
| | Author: | Helmut Doetsch
| | | | Genre: | Trading Strategy
| | | | Controller: | Keyboard
| | | | Players: | 6 | | | | Language: | BASIC
| | |
|
| Oelsuche |
  
| | Year: | 1985 | | | | Publisher: | Happy Computer
| | | | Author: | Kai-Uwe Wahl
| | | | Genre: | Ant Eater Arcade Single Screen
| | | | Controller: | Joystick
| | | | Players: | 1 | | | | Language: | BASIC
| | | | Comment: | Happy Computer, issue 08.1985 | | |
|
| OF |
   
| | Year: | 1990 | | | | Publisher: | System Inteligence Service (SIS)
| | | | Author: | Pavel Höfner
| | | | Genre: | Adventure Text
| | | | Controller: | Keyboard
| | | | Players: | 1 | | |
|
| Ogre |
 
| | Year: | 1986 | | | | Publisher: | MicroProse Software Origin Systems
| | | | Author: | David Lubar
| | | | Genre: | Hi-Res game War Strategy
| | | | Controller: | Joystick Keyboard
| | | | Players: | 1 | | |
|
| Ogrodnik |
 
| | Year: | 2013 | | | | Publisher: | --
| | | | Developer: | --
| | | | Author: | Piotr Zyśk (Amentes)
| | | | Genre: | ASCII graphic
| | | | Controller: | Keyboard
| | | | Players: | 1 | | | | Language: | BASIC
| | |
|
| Oh Frankie |
  
| | Author: | David Hood
| | | | Controller: | Joystick
| | | | Players: | 1 | | |
|
| Oil Business |
   
| | Year: | 1994 | | | | Publisher: | --
| | | | Developer: | --
| | | | Author: | Jacek Ziętek
| | | | Genre: | Trading Strategy
| | | | Controller: | Keyboard
| | | | Players: | 1 | | | | Language: | BASIC
| | |
|
| Oil Miner |
  
| | Genre: | Trading Strategy
| | | | Players: | 1 | | | | Language: | BASIC
| | |
|
| Oilgame |
  
| | Genre: | Trading Strategy
| | | | Controller: | Keyboard
| | | | Players: | 4 | | |
|
| Oilgame Deluxe |
     
| | Year: | 2012 | | | | Publisher: | Flop
| | | | Developer: | --
| | | | Author: | František Houra (Fandal)
| | | | Genre: | Trading Strategy
| | | | Controller: | Joystick Multijoy
| | | | Players: | 8 | | | | Comment: | Flop, issue 55, 04.2012. | | |
|
| Oils Well |
 
| | Year: | 1983 | | | | Publisher: | Aackosoft Main Street Publishing Sierra Entertainment (Sierra On-Line) (On-Line Systems)
| | | | Developer: | --
| | | | Author: | Thomas Mitchell
| | | | Genre: | Arcade Collect'em Single Screen
| | | | Controller: | Joystick
| | | | Players: | 1 | | |
|
| Olde Gold |
  
| | Year: | 1990 | | | | Publisher: | New Atari User
| | | | Developer: | --
| | | | Author: | Bill Halsall
| | | | Genre: | Adventure Arcade Multi Screen
| | | | Players: | 1 | | |
|
| Olewka |

| | Year: | 2010 | | | | Publisher: | --
| | | | Developer: | --
| | | | Author: | Marek Ogłodek (Koala)
| | | | Genre: | Arcade Single Screen
| | | | Controller: | Joystick
| | | | Players: | 1 | | |
|
| Olki |
    
| | Year: | 1994 | | | | Publisher: | Stan-Bit
| | | | Genre: | Adventure Arcade Multi Screen
| | | | Controller: | Joystick
| | | | Players: | 1 | | |
|
| Ollie's Follies |
 
| | Year: | 1984 | | | | Publisher: | American Eagle Software Americana
| | | | Developer: | Fanda
| | | | Author: | Frank Cohen
| | | | Genre: | Arcade Platformer Single Screen
| | | | Controller: | Joystick
| | | | Players: | 2 | | | | Cheat: | Level codes:Level 5: FRANK Level 10: FANDA Level 15: NORBI Level 20: ZOOM |
| | | | Trainer: | Unlimited lives: $[CE 81 36] → $[AD 81 36] $[CE 80 36] → $[AD 80 36] | | |
|
| Olympia |
        
| | Year: | 1985 | | | | Publisher: | TeleMatch
| | | | Developer: | --
| | | | Author: | Markus Pischel
| | | | Genre: | Arcade Sport
| | | | Controller: | Joystick
| | | | Players: | 4 | | | | Language: | BASIC
| | | | Comment: | TeleMatch Computer Praxis, issue 02.1985. | | |
|
| Olympic Dual |

| | Genre: | Arcade Split Screen Sport
| | | | Controller: | Joystick
| | | | Players: | 2 | | |
|
| Olympic Skier |
  
| | Year: | 1986 | | | | Publisher: | Americana
| | | | Developer: | Mr. Chip Software
| | | | Author: | Amin Hoque
| | | | Genre: | Arcade Sport Vertical Scrolling
| | | | Controller: | Joystick Keyboard
| | | | Players: | 1 | | |
|
| Omega |
 
| | Year: | 1984 | | | | Publisher: | SGM Software
| | | | Controller: | Joystick
| | |
|
| Omidor |
  
| | Year: | 1989 | | | | Author: | Peter Sabath
| | | | Genre: | Arcade Qix
| | | | Players: | 1 | | |
|
| On Cue Pool 87 |
 
| |
| On Cue Snooker 87 |
 
| |
| On-Track - Computer Model Car Racing |
  
| | Year: | 1985 | | | | Publisher: | Gamestar
| | | | Author: | Ed Ringler John Cutter Scott Orr
| | | | Genre: | Arcade Cars Racing
| | | | Controller: | Joystick
| | | | Players: | 2 | | |
|
| One for the Road |
 
| | Year: | 1985 | | | | Publisher: | ANALOG Computing
| | | | Developer: | --
| | | | Author: | Clayton Walnum
| | | | Genre: | Adventure Text
| | | | Controller: | Keyboard
| | | | Players: | 1 | | | | Comment: | ANALOG Computing, issue 41, 04.1986. | | |
|
| One Life |
     
| | Year: | 1993 | | | | Developer: | P&S Software
| | | | Author: | Krzysztof Paizert
| | | | Genre: | Arcade First Person Perspective (FPP) Motorcycle Racing Simulation
| | | | Controller: | Joystick
| | | | Players: | 1 | | |
|
| One Man and His Droid |
  
| | Year: | 1986 | | | | Publisher: | Mastertronic
| | | | Author: | Adrian Sheppard
| | | | Genre: | Arcade Maze
| | | | Controller: | Joystick
| | | | Players: | 1 | | | | Cheat: | Level codes:
Level 2: BUBBLE Level 3: ATARI Level 4: FINDERS Level 5: GENETIC Level 6: ZAPPED Level 7: MEGASONIC Level 8: TIMEWARP Level 9: ECTOPLASM Level 10: GORGEOUS | Level 11: SEASIDE Level 12: GIZMO Level 13: KING KONG Level 14: HOLOGRAM Level 15: CURRY RICE Level 16: COFFEE Level 17: CASSETTE Level 18: TELESCOPE Level 19: COMPUTER Level 20: EDACRAEDA |
| | |
|
| One-on-One |
 
| | Year: | 1983 | | | | Publisher: | Ariolasoft Atari Electronic Arts
| | | | Author: | Chuck Peavey Eric Hammond
| | | | Genre: | Arcade Basketball Sport
| | | | Controller: | Joystick Keyboard
| | | | Players: | 2 | | |
|
| Onslaught |

| | Year: | 1982 | | | | Author: | Harvey Lentchner
| | | | Genre: | Arcade Shoot'em Up Shooting Vertical Scrolling
| | | | Controller: | Joystick
| | |
|
| Onyx |
 
| | Year: | 1990 | | | | Publisher: | Utopia Software
| | | | Author: | Jan Burian
| | | | Genre: | Adventure Text
| | | | Controller: | Keyboard
| | | | Players: | 1 | | | | Language: | BASIC
| | |
|
| Opera House |
   
| | Year: | 1985 | | | | Publisher: | SECS
| | | | Developer: | Bignose Software
| | | | Author: | Peter Sleeman Steve Calkin
| | | | Genre: | Adventure Text
| | | | Controller: | Keyboard
| | | | Players: | 1 | | | | Language: | BASIC
| | |
|
| Operacja Pustynna Burza |
 
| | Year: | 1991 | | | | Publisher: | Tajemnice Atari
| | | | Developer: | --
| | | | Author: | Dariusz Żołna (De Jet)
| | | | Genre: | Arcade ASCII graphic Shoot'em Up Shooting Tank Vertical Scrolling
| | | | Controller: | Joystick Keyboard
| | | | Players: | 1 | | | | Language: | Assembler
| | | | Comment: | Tajemnice Atari, issue 7, 07.1991 | | |
|
| Operation Blood |
  
| | Year: | 1992 | | | | Publisher: | Mirage Software
| | | | Developer: | Our 5oft
| | | | Author: | Paweł Bulkowski Paweł Kalinowski (Pirx)
| | | | Genre: | Arcade Crosshair Shoot'em Up Shooting
| | | | Controller: | Joystick Mouse (Amiga) Mouse (Atari ST)
| | | | Players: | 1 | | | | Comment: | Polish version. | | | | Cheat: | Press [OPTION]+[CONTROL]+[,] to get energy. Press [OPTION]+[CONTROL]+[A] to change level. | | |
|
| Operation Blood |
 
| | Year: | 1992 | | | | Publisher: | A New Generation (ANG Software)
| | | | Developer: | Our 5oft
| | | | Author: | Paweł Bulkowski Paweł Kalinowski (Pirx)
| | | | Genre: | Arcade Crosshair Shoot'em Up Shooting
| | | | Controller: | Joystick Mouse (Amiga) Mouse (Atari ST)
| | | | Players: | 1 | | | | Comment: | English version. | | |
|
| Operation Crossroads |
   
| | Publisher: | Shoesoft
| | | | Genre: | Arcade Shoot'em Up Shooting
| | | | Controller: | Joystick
| | | | Players: | 1 | | |
|
| Operation Desert Storm |

| | Year: | 1992 | | | | Author: | Dariusz Żołna (De Jet)
| | | | Controller: | Joystick
| | | | Players: | 1 | | |
|
| Operation Market Garden |
 
| | Year: | 1985 | | | | Publisher: | Strategic Simulations Inc. (SSI)
| | | | Author: | Chuck Kroegel David Landrey
| | | | Genre: | War Strategy
| | | | Controller: | Keyboard
| | |
|
| Operation Whirlwind |
   
| | Year: | 1983 | | | | Publisher: | Brøderbund Software
| | | | Author: | Roger Damon
| | | | Genre: | Hi-Res artifacts Hi-Res title screen War Strategy
| | | | Controller: | Joystick Keyboard
| | |
|
| Oranges and Lemons |
 
| | Year: | 1983 | | | | Publisher: | KJB Programs
| | | | Genre: | Gambling
| | |
|
| Orb |
 
| | Year: | 1987 | | | | Publisher: | Page 6 Software
| | | | Author: | Gary Wheaton (B. Wheaton)
| | | | Controller: | Joystick
| | |
|
| Orb Pinball |
 
| | Publisher: | New Atari User
| | | | Developer: | --
| | | | Author: | Chris Guise
| | | | Genre: | Arcade Hi-Res game Pinball Pinball Construction Set Single Screen
| | | | Controller: | Joystick Paddles
| | | | Players: | 4 | | |
|
| Orbit |
 
| | Author: | R. Horne
| | | | Players: | 1 | | |
|
| Orc Attack |
 
| | Year: | 1983 | | | | Publisher: | Creative Sparks (Thorn EMI)
| | | | Author: | Dean Lock
| | | | Genre: | Arcade
| | | | Controller: | Joystick
| | | | Players: | 1 | | |
|
| Osadnicy |
  
| | Year: | 1995 | | | | Author: | Paweł Strzelec
| | | | Genre: | Strategy
| | | | Players: | 1 | | |
|
| Die Ostfront 1941 |

| |
| Otello |
 
| | Year: | 1993 | | | | Publisher: | Tajemnice Atari
| | | | Developer: | --
| | | | Author: | Maciej Majchrowski
| | | | Genre: | Board Logical Reversi
| | | | Controller: | Joystick
| | |
|
| Othello |
 
| | Genre: | Board Logical Reversi
| | | | Language: | BASIC
| | |
|
| Othello Blitz |

| | Genre: | Board Logical Reversi
| | | | Controller: | Keyboard
| | | | Players: | 1 | | |
|
| Othello II |
  
| | Year: | 1990 | | | | Publisher: | Sawfish Software
| | | | Author: | Michael Guntersdorfer
| | | | Genre: | Board Logical Reversi
| | | | Controller: | Joystick
| | | | Players: | 2 | | | | Language: | BASIC
| | |
|
| Outlaw |
 
| | Year: | 1979 | | | | Publisher: | Atari Program Exchange (APX)
| | | | Developer: | Atari
| | | | Author: | David Crane
| | | | Genre: | Arcade Shoot'em Up Shooting
| | | | Controller: | Joystick
| | | | Players: | 2 | | |
|
| Outris |
 
| | Year: | 1992 | | | | Publisher: | Domain Software
| | | | Author: | J. Korzewski S. Różański
| | | | Genre: | Arcade Logical Single Screen Tetris
| | | | Controller: | Joystick
| | | | Players: | 2 | | |
|
| Oxygene |
  
| | Year: | 1988 | | | | Publisher: | Atari Team (TAT)
| | | | Genre: | Arcade Mirax Force Shoot'em Up Shooting
| | | | Controller: | Joystick
| | | | Players: | 1 | | |
|
| Ozzy's Orchard |
  
| | Year: | 1983 | | | | Publisher: | TG Software
| | | | Genre: | Arcade Single Screen
| | | | Controller: | Joystick
| | | | Players: | 2 | | |
|