Here’s a fan-generated Warhammer Fantasy Battles book based on Medieval Arabic archetypes: Warhammer Araby
The Miniature Wargaming Editor
Warhammer fantasy Battles Albion Army Book
Albion is an army book for Warhammer Fantasy based on archetypes of the British Isles.
Take Back Toe Print and Play
Take Back Toe is a free print and play game with elements of mancala and backgammon.
Estalia Warhammer Fantasy Army Book
Estalia is an unofficial army book for Warhammer Fantasy — based, it seems on Spanish medieval and renaissance archetypes