| Settings | |||||
|---|---|---|---|---|---|
| Name | Owner | Posts | Characters | ||
| Maximum Ride | Guilty | 0 | 9 | ||
| MCU | Anya | 3 | 26 | ||
| MDZS | MaggieoftheOwls | 14 | 17 | ||
| Mechuria | NormalAnomaly | 1 | 4 | ||
| Medaeval | realworldalt | 0 | 1 | ||
| Medallion | Alicorn | 5 | 3 | ||
| median | perinoveau | 0 | 0 | ||
| medianverse | westwind | 3 | 6 | ||
| megacontinuity scholomance | DDF | 0 | 2 | ||
| Megazomia | Archon | 3 | 4 | ||
| Megumi and Tsugumi (Manga) | red | 0 | 0 | ||
| Melodia | DawnlightMelody | 0 | 1 | ||
| Membrane | Tricky | 0 | 2 | ||
| Mercury | ChaosMagic | 1 | 2 | ||
| Mergery | Kappa | 0 | 1 | ||
| Metaspace | Unbitwise | 1 | 3 | ||
| Meteor | MaggieoftheOwls | 1 | 1 | ||
| Metroid | ray | 0 | 2 | ||
| MidChilda | st753m | 0 | 0 | ||
| Middle Names | decembercat | 0 | 4 | ||
| Midgard | Hellevi | 0 | 6 | ||
| Midnight | Anya | 0 | 25 | ||
| Midnight Mass | Anya | 0 | 0 | ||
| Midnight Place | Aabcehmu | 0 | 2 | ||
| Milliways | Tregiah | 96 | 16 | ||