| System (Setting) | Publications | Articles |
|---|---|---|
 Labyrinth Lord | 3 | 6 |
| Labyrinth Lord (Mutant Future) | 1 | 1 |
| Lamentations of the Flame Princess | 3 | 2 |
 Lantern on the Dock | 1 | 1 |
| Lasers and Feelings (Sanity and Sorcery) | 1 | 1 |
| Leagues of Adventure | 9 | 14 |
| The Legacy of Cthulhu | 4 | 14 |
| Lift the Veil | 1 | 2 |
| Lil' Cthulhu | 1 | 1 |
| Little Fears | 1 | 1 |
| Lobotomy | 1 | 1 |
| Lost in R'lyeh | 3 | 3 |
| Lost Souls | 1 | 1 |
| Lovecraft Letter | 1 | 1 |
| Lovecraft Rules | 1 | 0 |
| The Lovecraft Tales | 1 | 1 |
| Lovecraft's Revenge | 2 | 2 |
| Lovecraftesque | 29 | 48 |
| Lovecraftian Shorts | 1 | 7 |