- Epic Words
- Rule Systems
Rule System Directory
| Rule System (sort) | Publisher (sort) | Edition | Settings | Campaigns (sort) |
|---|---|---|---|---|
| Legends of Alyria | 1 | 0 | ||
| M&M Superlink | 2 | 2 | ||
| Marvel Superheroes | TSR | 1st | 0 | 6 |
| Mazes & Perils | Wild Games Productions | 1st | 0 | 0 |
| MechWarrior | FASA Corporation | 3rd | 1 | 0 |
| Megaversal system | Palladium Books | Ultimate Edition | 1 | 3 |
| Metal Magic and Lore | 5th Epoch Publishing | 1st | 1 | 0 |
| Microlite20 | Microlite20 | 1st | 0 | 0 |
| Microscope | Lame Mage Productions | 1st | 0 | -1 |
| Middle-earth Role Playing | Iron Crown Enterprises | 2nd | 1 | 2 |
| Mongoose Traveler | Mongoose Publishing | 1st | 1 | 0 |
| Mongoose Traveller | Mongoose Publishing | Mongoose Traveller | 0 | 6 |
| More Than Human | Fan Published | 1st | 0 | 0 |
| Mouse Guard | 1 | 3 | ||
| Munchkin RPG | 1st | 1 | 0 | |
| Mutants & Masterminds | 1st | 1 | 0 | |
| Mutants & Masterminds | 2nd | 2 | 9 | |
| Mutants & Masterminds | Green Ronin Publishing | 3rd | 1 | 23 |
| Myth & Magic | New Haven Games | 1st | 0 | 0 |
| Numenera | Monte Cook Games | 1st | 1 | 12 |
| Old School Hack | Kirin Robinson | 1.0 (beta) | 0 | 1 |
| One-Roll Engine | ArcDream Publishing | 1st | 5 | 2 |
| Other Game System | 1 | 77 | ||
| OVA: The Anime Role-Playing Game | Wise Turtle | 1st | 0 | 0 |
| Palladium Megaversal | Palladium Books | 1st | 0 | 2 |
