| PepperBoi | Developer | |
| Peppermint Kids | DeveloperPublisher | |
| Pepperoni Games | Developer | |
| PeppersGamer | Developer | |
| Per K Grok | Developer | |
| PerIta Soft | Developer | |
| Perametade Games | Developer | |
| Perang Cemen | Developer | |
| Perceve | Developer | |
| Perchang | Developer | |
| Percy | Developer | |
| Percy Dragon | Developer | |
| Pere | Developer | |
| Perebite | Developer | |
| Perfect 10 Productions | Developer | |
| Perfect Entertainment | DeveloperPublisher | |
| Perfect Hat | DeveloperPublisher | |
| Perfect Run | Developer | |
| Perfect World | Publisher | |
| Perfect World Entertainment | Publisher | |
| Perfection Software | Publisher | |
| Perfectly Paranormal | DeveloperPublisher | |
| Perfoon | Developer | |
| Performance Designed Products | DeveloperPublisher | |
| Pergaeyon | Developer | |
| Perichron Interactive | Developer | |
| Perigon Games | Developer | |
| Periltek | Developer | |
| Perimeter Games | DeveloperPublisher | |
| Peringo | Developer | |
| PeriodOfPlay | Developer | |
| PeritaStudio | Developer | |
| Permafried Games | Developer | |
| Permafrost | Developer | |
| PeroPeroGames | Developer | |
| PeronJames | Developer | |
| Perp Games | Publisher | |
| Perpetual Diversion | Developer | |
| Perpetual FX Creative | Developer | |
| PerpetuosGames | Developer | |
| Perro Viejo | Developer | |
| PerroApaleado | Developer | |
| Perry Berkum | Developer | |
| Perry Optics | Developer | |
| Persegan | Developer | |
| Persephone's Chair | Developer | |
| Persian Soft | DeveloperPublisher | |
| Persijn Kwekkeboom | Developer | |
| Persistant Studio | Developer | |
| Persistant Studios | Developer | |
| PersonaBlack | Developer | |
| Personal Companion Software | DeveloperPublisher | |
| Personal Software | Publisher | |
| Personal Software Services | DeveloperPublisher | |
| Pertinax Games | Developer | |
| PeryLoth | Developer | |
| PeskyBees | Developer | |
| Pet Pumpkin | Developer | |
| PetMeGames | Developer | |
| PetTurtle | Developer | |
| PetaPhaser | Developer | |
| Pete Ainsworth | Developer | |
| Pete Austin | Developer | |
| Pete Carter | Developer | |
| Pete Cooke | Developer | |
| Pete Ellison | Developer | |
| Pete Frith | Developer | |
| Pete James | Developer | |
| PeteCimino | Developer | |
| Peter Adams | Developer | |
| Peter Austin | Developer | |
| Peter Bergman | Developer | |
| Peter Calver | Developer | |
| Peter Clarke | Developer | |
| Peter Cleary | Developer | |
| Peter Februar | Developer | |
| Peter Filiberti | Developer | |
| Peter Hann | Developer | |
| Peter Harrap | Developer | |
| Peter J. Favaro | Developer | |
| Peter J. Ranson | Developer | |
| Peter Johnson | Developer | |
| Peter Jones | Developer | |
| Peter Kaminski | Developer | |
| Peter Karboulonis | Developer | |
| Peter Killworth | Developer | |
| Peter Kiss | Developer | |
| Peter Liepa | Developer | |
| Peter Lu & Lea Schönfelder | DeveloperPublisher | |
| Peter M Harrap | Developer | |
| Peter M. Harrap | Developer | |
| Peter Milko (Pixel Pete) | Developer | |
| Peter Molyneux | Developer | |
| Peter Offerman | Developer | |
| Peter R. Jennings [1] [2] [3] | Developer | |
| Peter Rokitski | Developer | |
| Peter S. Boulton | Developer | |
| Peter Schmuckal & Leonard Barshack | Developer | |
| Peter Schmuckal and Dan Sommers | Developer | |
| Peter Steffen | Developer | |