| System (Setting) | Publications | Articles |
|---|---|---|
 Pandemic | 1 | 1 |
 Pandemonium | 1 | 1 |
| Paranoia | 2 | 2 |
| Pathfinder | 63 | 122 |
| Pathfinder (Starfinder) | 2 | 2 |
| PBM Call of the Cultists | 1 | 2 |
| PDQ | 4 | 9 |
| Penny Arcade: The Game | 1 | 1 |
| Phoenix Command | 1 | 2 |
| The Pip System | 1 | 0 |
| Pirate Borg | 0 | 1 |
| The Pirates of Leng | 1 | 0 |
| Planet Apocalypse | 1 | 1 |
| Plotwerks | 1 | 1 |
| Pocket Madness | 1 | 1 |
| Pokethulhu | 3 | 8 |
| Porphyra | 1 | 1 |
| Postcard Cthulhu | 1 | 1 |
| Power Core: Call of Cthulhu | 1 | 1 |
| Powered by the Apocalypse | 3 | 2 |
| Pulp Adventure | 2 | 6 |
| PunkApocalyptic | 1 | 1 |