I have already given you Witches and Vampires so now I present Werewolves.
Werewolves: The Beast Within is a 10/20 level race-as-a-class class for your favorite Basic Era OSR game.
From the back cover:
The fear to loose control and become a hungry, blood lusted
beast has haunted our nightmares since we clutched together
in the dark. It has also been the secret desire of others.
Lycanthropes been a staple of role-playing villains, monsters, and
anti-heroes since the dawn of the role-playing hobby.
Now you can play these fearsome monsters of horror tales and
movies in your Basic-Era style games.
Presented here is a full 20 level class with all the classic
Fully compatible with the werewolf monsters you have been
using for nearly 40 years.
Also fully compatible with my books for Witches and Vampires.
This one is a buck, but that is really just to pay for the art.
So celebrate "Half-aween" (half way to Halloween) with some classic monsters.