| Tags | |||||
|---|---|---|---|---|---|
| Name | Type | Posts | Characters | ||
| Old Kingdom | Setting | 0 | 6 | ||
| Oldoria | Setting | 1 | 4 | ||
| Old Republic | Setting | 16 | 19 | ||
| Olympus | Setting | 0 | 11 | ||
| omega-C | Setting | 1 | 5 | ||
| Omegaverse | Setting | 0 | 1 | ||
| Ommatidium | Setting | 0 | 2 | ||
| Omniscience | Setting | 1 | 5 | ||
| Oneiroi | Setting | 0 | 1 | ||
| One Piece | Setting | 0 | 5 | ||
| Optophobia | Setting | 0 | 3 | ||
| Orbital Deck | Setting | 0 | 2 | ||
| Orchid War Reborn | Setting | 0 | 0 | ||
| Order of the Stick | Setting | 6 | 30 | ||
| Original | Setting | 0 | 0 | ||
| Original Setting | Setting | 2 | 1 | ||
| Ormulum | Setting | 3 | 6 | ||
| orphan black | Setting | 0 | 1 | ||
| Orrery of Worlds | Setting | 0 | 0 | ||
| osirion | Setting | 4 | 6 | ||
| Ossis | Setting | 0 | 2 | ||
| OTC | Setting | 8 | 16 | ||
| Otherverse | Setting | 0 | 10 | ||
| Otherways | Setting | 0 | 15 | ||
| otherwoods | Setting | 0 | 1 | ||