City State of the Invincible Overlord
| Publishers | Judges Guild |
|---|---|
| Publication | 1976 |
| Genres | Role-playing |
| Parent games | Dungeons & Dragons |
City State of the Invincible Overlord is a fantasy role-playing game supplement originally published by Judges Guild in 1976. It was the first published fantasy role-playing game city setting, designed for use with Dungeons & Dragons (D&D), and officially approved for use with D&D from 1976 through 1983. It was later republished under license by Necromancer Games.