From publisher blurb:
A collection of monsters, creatures, strange beings, traps, and encounters compatible with the Original Fantasy RPG and similar systems.
Beasties is a fantasy bestiary supplement compatible with the original fantasy roleplaying game and subsequent editions, and other “OSR” games that follow in the mold of the original like Colonial Troopers, Guardians, and Warriors of the Red Planet. More than just a manual of monsters this book includes ready made NPC’s, traps & tricks, a mega-dungeon adventure synopsis and random encounter tables.
This is a handy reference book to bring to your gaming table, or use for inspiration in creating adventures.