| 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 | |