| System (Setting) | Publications | Articles |
|---|---|---|
 S-P-O-N-G-E: Fight the Evil | 1 | 1 |
 Savage Worlds (Achtung!) | 20 | 123 |
| Savage Worlds (Dust) | 1 | 8 |
| Savage Worlds (Realms of Cthulhu) | 7 | 19 |
| Savage Worlds | 14 | 42 |
| Scheherazade | 1 | 1 |
| Scion | 1 | 13 |
| The Seals of Cthulhu | 1 | 1 |
| Searchers of the Unknown | 1 | 1 |
| Secret Cthulhu | 1 | 1 |
| The Secret War | 1 | 1 |
| Secrets of the Lost Tomb | 2 | 2 |
| A Settling of Snow | 1 | 1 |
| The Shadow of a Dark God | 1 | 1 |
| Shadow of Miskatonic | 1 | 1 |
| Shadow of the Elder Gods | 1 | 1 |
| Shadowrun | 2 | 2 |
 Shadows of Cthulhu | 1 | 1 |
| Shadows Over Normandie | 14 | 14 |
| Shattered Dreams | 3 | 4 |
| Silent Legions | 1 | 8 |
| Smash Up | 1 | 1 |
| Soth | 1 | 8 |
| Space 1889 | 6 | 7 |
| The Spawn of Yog-Sothoth | 1 | 1 |
| Spectre: Operations | 2 | 2 |
| Spiralis | 1 | 4 |
| Spycraft | 1 | 1 |
| Squamous | 1 | 2 |
| The Stalking Terror | 1 | 1 |
| Star Wars | 1 | 2 |
| The Stars Are Right | 1 | 1 |
| Stay Away! | 2 | 2 |
| StickGuy | 1 | 0 |
| Sticky Cthulhu | 1 | 1 |
| Strange Aeon | 3 | 15 |
| Strange Aeons | 1 | 1 |
| Strike! | 1 | 1 |
| A Study in Emerald | 4 | 4 |
| The Suits: Cthulhu | 1 | 1 |
| Summoner's Grimoire | 1 | 1 |
| Sundered Epoch: Generations | 1 | 1 |
| Superworld | 1 | 1 |
| Sushi Dice | 1 | 1 |
| Svalbard | 2 | 4 |
| Swords and Wizadry | 1 | 1 |