| Piña | Developer | |
| Pjchardt | Developer | |
| Pk-9 Studio | Developer | |
| Placate The Cattin | Developer | |
| PlaceHolder | Developer | |
| Placebo Games | Developer | |
| Placeholder Gameworks | Developer | |
| Plague | Developer | |
| PlakNightGames | Developer | |
| Plan 1 | Publisher | |
| Plan B | Developer | |
| PlanchetteGames | Developer | |
| Planet Alpha | Developer | |
| Planet Entertainment | Publisher | |
| Planet Interactive | Developer | |
| Planet Moon Studios | Developer | |
| PlanetEightGames | Developer | |
| PlanetHoward | Developer | |
| PlanetRealm | Developer | |
| PlanetTzero | Developer | |
| PlanktonTech | Developer | |
| Planning Office WADA | DeveloperPublisher | |
| Planning Office Wada | DeveloperPublisher | |
| Planschi | Developer | |
| PlantLeaf | Developer | |
| PlantMama | Developer | |
| PlantOnMyPing | Developer | |
| Planta | Developer | |
| Plantus | Developer | |
| Plasma Spade | Developer | |
| Plastic | Developer | |
| Plastic Games | Developer | |
| Plastic Piranha | Developer | |
| Platine Dispositif | Publisher | |
| Platinum Egg | Developer | |
| Platinum Productions | Developer | |
| Platinum Productions (David J Anderson, Ian Morrison) | Developer | |
| Platinum Productions (David J Anderson, Ian Morrison, F David Thorpe) | Developer | |
| Platinum-Egg | Developer | |
| PlatinumGames | DeveloperPublisher | |
| PlatinumNinja72 | Developer | |
| Plato | DeveloperPublisher | |
| PlatonGames | Developer | |
| Platoniax Studio | Developer | |
| Platonic Partnership | Developer | |
| PlattSoft | Developer | |
| Platypus Studios | Developer | |
| Platypuus | Developer | |
| Plausible Concept | Developer | |
| Play Avenue | DeveloperPublisher | |
| Play Byte | Publisher | |
| Play Cute | Developer | |
| Play It | Publisher | |
| Play It (2003 Re-Release) | Publisher | |
| Play It Games | Publisher | |
| Play It Ltd | Publisher | |
| Play It Ltd (2003 Re-Release) | Publisher | |
| Play It! | DeveloperPublisher | |
| Play It!EU | Publisher | |
| Play It!PAL | Publisher | |
| Play Mechanix | DeveloperPublisher | |
| Play Mechanix, Inc. | Publisher | |
| Play NYC 2020 | Developer | |
| Play THQ | Publisher | |
| Play Ten Interactive | Publisher | |
| Play Wireless | Developer | |
| Play it! | Publisher | |
| Play8Bitars | Developer | |
| PlayDoujin | Publisher | |
| PlayDude And Go India | Developer | |
| PlayEveryWare | DeveloperPublisher | |
| PlayEveryWare Games | Publisher | |
| PlayFirst | DeveloperPublisher | |
| PlayFirst, Inc. | DeveloperPublisher | |
| PlayFishy | Developer | |
| PlayFusion | DeveloperPublisher | |
| PlayKiseki | Developer | |
| PlayLogic International | Publisher | |
| PlayMagic | Developer | |
| PlayMates | Publisher | |
| PlayMedusa | Developer | |
| PlayMocha | Developer | |
| PlayOn Interactive | Publisher | |
| PlayPak | Publisher | |
| PlayStation C.A.M.P. | Developer | |
| PlayTechTonics | DeveloperPublisher | |
| PlayWay | DeveloperPublisher | |
| Playable Creatures | Developer | |
| Playables | Developer | |
| Playbrains | Developer | |
| Playcrafting | Developer | |
| Playdead | DeveloperPublisher | |
| Playdigious | Publisher | |
| Playdius | Publisher | |
| Playdius Entertainment | DeveloperPublisher | |
| Player 1 | DeveloperPublisher | |
| Player Wonderful | Developer | |
| Player25748 | Developer | |
| PlayerStudio1 | Developer | |
| Player_Senpai | Developer | |
| Players | DeveloperPublisher | |
| Players Premier Software | Publisher | |
| Players Software | Publisher | |
| Playfellow Studio | Developer | |
| Playfetch | Developer | |
| Playful | Developer | |
| Playful Corp | Developer | |
| Playful Pasta | Developer | |
| Playful Studios | DeveloperPublisher | |
| Playfusion | Publisher | |
| Playground Games | Developer | |
| Playimu | Developer | |
| Playism | Publisher | |
| Playlogic | DeveloperPublisher | |
| Playlogic Entertainment | DeveloperPublisher | |
| Playlogic EntertainmentEU | Publisher | |
| Playlogic EntertainmentPAL | Publisher | |
| Playlogic Game Factory | Developer | |
| Playlogic International | Publisher | |
| Playmark | Publisher | |
| Playmates | Publisher | |
| Playmates Interactive | Publisher | |
| Playmates Interactive Entertainment | Publisher | |
| Playmates Interactive EntertainmentNA | Publisher | |
| Playmates InteractiveNA | Publisher | |
| Playmates NA | Publisher | |
| PlaymatesNA | Publisher | |
| Playmind | DeveloperPublisher | |
| Playmobil Interactive | Developer | |
| Playmore | DeveloperPublisher | |
| Playmous | DeveloperPublisher | |
| Playnet Inc. | Developer | |
| Playniac | DeveloperPublisher | |
| Playonretro | Developer | |
| Playrise Digital | DeveloperPublisher | |
| Playrix | Developer | |
| Playsea | Publisher | |
| Playsport Games | Developer | |
| Playstack | Publisher | |
| Playstige Interactive | DeveloperPublisher | |
| Playstos Entertainment | Developer | |
| Playtonic Games | Developer | |
| Playtra | Developer | |
| Playway | Publisher | |
| Playwood Project | Developer | |
| Please wait | Developer | |
| PleasingFungus | Developer | |
| Pleroma | Developer | |
| Plex | Developer | |
| Pliant Press | Developer | |
| Plokie | Developer | |
| Plucky Porcupine Game Boutique | Developer | |
| Plucky Rat | Developer | |
| Plueschkatze | Developer | |
| Plug In Digital | DeveloperPublisher | |
| PlugWorld | Developer | |
| Plum | Developer | |
| PlumJuice | Developer | |
| Plumjam | Developer | |
| Plundration | Developer | |
| PlungerGames | Developer | |
| Plus Games | Developer | |
| Plus Ultra | Developer | |
| Plus67 | Developer | |
| Plusw | Developer | |
| Pluto's Heart | Developer | |
| PlutoCrashed | Developer | |
| PlutoHimself | Developer | |
| Plutoneus | Developer | |
| PlutoniumPowered | Developer | |
| Plyb | Developer | |
| Plystos Entertainment | Developer | |
| Pnda Game Studio | Developer | |
| Pocket | DeveloperPublisher | |
| Pocket Company | Developer | |
| Pocket Direct | Publisher | |
| Pocket Guava | Developer | |
| Pocket Llama | Developer | |
| Pocket Money Games | DeveloperPublisher | |
| Pocket Studios | Developer | |
| Pocket Trap | Developer | |
| PocketGear | Publisher | |
| PocketRocket | Developer | |
| Pocketeers | Developer | |
| PocketsPockets | Developer | |
| Pocketwatch Games | DeveloperPublisher | |
| Pocky | Developer | |
| Pod Bay | Developer | |
| Pod Bay Enterprises | Developer | |
| Pod Games | Developer | |
| Pod Ruben | Developer | |
| PodgeSherry | Developer | |
| Podpolnye Nedodelki | Developer | |
| Poe Taito | Developer | |
| Pogesque | Developer | |
| Pogo Pogo | Developer | |
| Pogo.com | Developer | |
| Poh C. Lim | Developer | |
| Poincare | Developer | |
| Point N' Sheep | Developer | |