An Entity of Type: classical music composition,
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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.
