Fiend Folio

The Fiend Folio is a role-playing game supplement originally published in 1981 for Dungeons & Dragons and later adapted for other editions. It is a sourcebook that introduces a diverse array of monsters and creatures, often more unusual and imaginative than standard bestiaries. The content was inspired by contributions from fans and artists, making it a collection of unique, sometimes bizarre beings for Dungeon Masters to incorporate into their games. Overall, the Fiend Folio expands the creative possibilities for storytelling and encounters in fantasy role-playing adventures.