| Othello | 1984 | arcade |
| Othello Derby | 1995 | arcade |
| Othello Millennium | 1999 | gbc |
| Othello Shiyouyo | 1998 | arcade |
| Othello World | 1994 | gb |
| Othello World | 1992 | snes |
| Othello World II - Yume to Michi e no Chousen | 1995 | ps1 |
| Othello de Othello DS | 2004 | nds |
| Otogizoushi Urashima Mahjong | 1989 | arcade |
| Otona no Asobi | 1999 | ps1 |
| Otona no Gal-jong - Kimi ni Haneman! | 2004 | ps2 |
| Otona no Gal-jong 2 - Koishite Bai Man! | 2005 | ps2 |
| Otona no Mahjong | 1988 | arcade |
| Our Graduation - Mahjong de Pon! Hanafuda de Koi! | 2000 | ps1 |
| Oyaji no Jikan - Nee-chan Hanafuda de Shoubu ya! | 2000 | ps1 |
| Oyaji no Jikan - Nee-chan Mahjong de Shoubu ya! | 2001 | ps1 |
| PK - New Exciting Poker! | 1987 | arcade |
| PK Rainbow | 1990 | arcade |
| PK Turbo | 1988 | arcade |
| PK Turbo Great 2 | 1992 | arcade |
| PK Turbo Special | | arcade |
| PMA Poker | 1983 | arcade |
| PT Reach Mahjong | 1979 | arcade |
| Pai Chenjan | 2001 | ps2 |
| Palm Town | 1999 | ps1 |
| Panel Action Bingo | 1993 | gb |
| Paradar | | arcade |
| Parent Jack | 1989 | arcade |
| Parrot Poker III | 2004 | arcade |
| Party Fun Pirate | 2009 | wii |
| Pass the Pigs - Let the Good Swines Roll! | 2008 | nds |
| Pastel Gal | 1985 | arcade |
| The Path of Go | 2010 | xbox360 |
| Peg Solitaire | 2011 | lynx |
| Penguins & Friends - Hey! That's My Fish! | 2009 | wii |
| Phantasy Star Online Episode III - C.A.R.D. Revolution | 2003 | gc |
| Piaoliang Jinhua | 2000 | arcade |
| Piaoliang Jinhua 2 | | arcade |
| Piccolo Poker 100 | 1991 | arcade |
| Pictionary - The Game of Video Quick Draw | 1990 | nes |
| PictureBook Games - A Pop-Up Adventure | 2009 | wii |
| PictureBook Games - Pop-Up Pursuit | 2009 | wii |
| Pili Shen Deng | 1998 | arcade |
| Pinkiri 8 | 1994 | arcade |
| Pirate Poker II | 2003 | arcade |
| Play4Texas Hold'em | 2011 | arcade |
| PlayMan Poker | 1981 | arcade |
| Player's Choice Multi-Game | 1994 | arcade |
| Player's Choice RAM Clear | 1987 | arcade |
| Player's Choice Standard Draw Poker | 1987 | arcade |
| Player's Edge 4 of a Kind Bonus Poker | 1987 | arcade |
| Player's Edge Aces and Faces Bonus Poker | 1987 | arcade |
| Player's Edge Deuces Wild Poker | 1987 | arcade |
| Player's Edge Double Bonus Poker | 1987 | arcade |
| Player's Edge Jake's Jacks Bonus Poker | 1987 | arcade |
| Player's Edge Joker Poker | 1987 | arcade |
| Player's Edge Plus 10's or Better | 1987 | arcade |
| Player's Edge Plus 4 of a Kind Bonus Poker | 1987 | arcade |
| Player's Edge Plus 5-in-1 Wingboard | 1995 | arcade |
| Player's Edge Plus 5-in-1 Wingboard - International | 1995 | arcade |
| Player's Edge Plus 5-in-1 Wingboard - Spanish | 1995 | arcade |
| Player's Edge Plus Ace$ Bonus | 1995 | arcade |
| Player's Edge Plus Ace$ Bonus Poker | 1995 | arcade |
| Player's Edge Plus Aces and Faces Bonus Joker Poker | 1987 | arcade |
| Player's Edge Plus Aces and Faces Bonus Poker | 1987 | arcade |
| Player's Edge Plus Barbaric Decues Wild Poker | 1995 | arcade |
| Player's Edge Plus Black Jack Bonus Poker | 1995 | arcade |
| Player's Edge Plus Blackjack | 1994 | arcade |
| Player's Edge Plus Blackjack Poker | 1995 | arcade |
| Player's Edge Plus Bonus Poker Deluxe | 1987 | arcade |
| Player's Edge Plus Deuces Joker Wild Poker | 1987 | arcade |
| Player's Edge Plus Deuces Wild Bonus Poker | 1995 | arcade |
| Player's Edge Plus Deuces Wild Bonus Poker - French | 1995 | arcade |
| Player's Edge Plus Deuces Wild Poker | 1987 | arcade |
| Player's Edge Plus Double Aces and Faces Bonus Poker | 1987 | arcade |
| Player's Edge Plus Double Black Jack Slots | 1996 | arcade |
| Player's Edge Plus Double Bonus Poker | 1987 | arcade |
| Player's Edge Plus Double Bonus Poker featuring 'Your Property' Royals | 1995 | arcade |
| Player's Edge Plus Double Cherry Bar Slots | 1996 | arcade |
| Player's Edge Plus Double Deuces Wild Poker | 1987 | arcade |
| Player's Edge Plus Double Deuces Wild Poker - French | 1987 | arcade |
| Player's Edge Plus Double Double Bonus Plus | 1995 | arcade |
| Player's Edge Plus Double Double Bonus Poker | 1995 | arcade |
| Player's Edge Plus Double Double Bonus with 3 Aces Poker | 1995 | arcade |
| Player's Edge Plus Double Double Bonus with 3 Jacks Poker | 1995 | arcade |
| Player's Edge Plus Double Down Stud Deuces Wild Poker | 1995 | arcade |
| Player's Edge Plus Double Down Stud Joker Poker | 1987 | arcade |
| Player's Edge Plus Double Down Stud Poker | 1987 | arcade |
| Player's Edge Plus Faces 'n' Deuces Double Bonus Poker | 1995 | arcade |
| Player's Edge Plus Full House Bonus Poker | 1995 | arcade |
| Player's Edge Plus Hearts Sequential Royal Double Bonus Poker | 1987 | arcade |
| Player's Edge Plus Jackpot Poker | 1995 | arcade |
| Player's Edge Plus Joker Poker | 1987 | arcade |
| Player's Edge Plus Joker Poker - French | 1987 | arcade |
| Player's Edge Plus Joker's Revenge Poker | 1995 | arcade |
| Player's Edge Plus Loose Deuce Deuces Wild! Poker | 1987 | arcade |
| Player's Edge Plus Lucky Deal Poker | 1995 | arcade |
| Player's Edge Plus Multi-Poker | 1995 | arcade |
| Player's Edge Plus Nevada Bonus Poker | 1995 | arcade |
| Player's Edge Plus No Faces Pay the Aces Poker | 1995 | arcade |