The basic concept is you play a "character" based of the player's actual combined Chinese/Greek zodiac.
Races
https://docs.google.com/open?id=0B6r6KFirefQVMmE5YzAxOTItOTE0MC00MjZhLTk5YT ctODczYmJiNDJhNDMz
Classes
https://docs.google.com/open?id=0B6r6KFirefQVMWY0NGIyOGQtM2FmZS00NzYyLWJkMD MtN2FjNjY2MmQyNzVm
So far the races and classes are not balanced with core pathfinder. And for xp the characters should be treated as 1 level higher (or the EL of the encounter one lower).