| System (Setting) | Publications | Articles |
|---|---|---|
 H P Lovecraft Preparatory Academy | 3 | 13 |
 Hastur | 1 | 1 |
| The Heart of Cthulhu | 2 | 2 |
| Hero System | 3 | 7 |
| Heroes of Normandie | 1 | 1 |
| The Hills Rise Wild | 1 | 1 |
| Hollow Earth Expedition | 1 | 1 |
| Hornet Leader | 1 | 1 |
| Horrified: World of Monsters | 1 | 1 |
| Horror on the Orient Express: The Board Game | 1 | 1 |
| Horrors in the Night | 1 | 1 |
| Hotel Lovecraft | 1 | 1 |
| The House on Sentinel Hill | 1 | 1 |
| Hyperspace | 1 | 1 |