Game System
- Pack & Stack13
- Periodic: A Game of The Elements13
- Phantasm13
- Pirates of a Shattered World13
- Poo13
- Princes of Florence13
- Princes of the Dragon Throne13
- Queen by Midnight13
- RPXpress13
- RUNEQUEST Game System13
- Rattle Battle Grab The Loot13
- Relic Knights13
- Resident Evil 313
- Retro Raygun13
- Ricochet Robot13
- Romance of the Nine Empires13
- Ronin Dice13
- Ruse13
- Sam Grant13
- Scavenge13