| 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 | |