Fictional Zodiac Theme
(You can edit this, To make it longger.)
Sometimes Western and Eastern zodiacs and the Druidic Tree Birth Signs just don't cut it. Inventing new zodiac and horoscope systems is a nice way to add depth to a world different from ours, and a completely new birth sign/horoscope system can be used to give a basis for foreign myths and superstitions.
- Thir13en Ghosts has the Black Zodiac corresponding to the thirteen ghosts needed to activate Basileus's Machine and open the Ocularis Infernum.
- Eberron has the Dragonmarked Houses, With 12 Dragonmarked for each Houses. (Phiarlan and Thuranni both use the same Dragonmarked, The Mark of Shadow) and the 12 Moon.