| Settings | |||||
|---|---|---|---|---|---|
| Name | Owner | Posts | Characters | ||
| Objects | red | 2 | 13 | ||
| oblivion | ZT5 | 0 | 0 | ||
| Obsidian | Anya | 0 | 17 | ||
| Obsidian Universe | Kappa | 0 | 0 | ||
| Odyssey | Diaeresis | 0 | 1 | ||
| Oerth | Adelene | 3 | 9 | ||
| Ohtori Academy | sphinx | 0 | 1 | ||
| Olam | acidshill | 1 | 2 | ||
| Olan | WarmestLight | 0 | 2 | ||
| Old Kingdom | Kappa | 0 | 6 | ||
| Oldoria | Iarwain | 1 | 4 | ||
| Old Republic | Diaeresis | 16 | 19 | ||
| Olympus | Hellevi | 0 | 11 | ||
| omega-C | Neva | 1 | 5 | ||
| Omegaverse | andaisq | 0 | 1 | ||
| Ommatidium | decembercat | 0 | 2 | ||
| Omniscience | red | 1 | 5 | ||
| One Piece | Anya | 0 | 3 | ||
| Optophobia | root | 0 | 3 | ||
| Orchid War Reborn | Sage/Nemesis | 0 | 0 | ||
| Order of the Stick | perinoveau | 1 | 27 | ||
| Original | Anya | 0 | 0 | ||
| Original Setting | Kappa | 1 | 1 | ||
| Ormulum | Orm | 3 | 6 | ||
| orphan black | ChaosMagic | 0 | 1 | ||