Alanna's Realm of Tortallan Fantasy: Tortall RPG and information.
Corus: Tamora Pierce RPG that takes place at about the same time as Trickster's Choice.
Corus Knight School: RPG based on the Tortallan novels.
Mother of the Moon: RPG based on the Song of the Lioness, taking place in a Mother of the Moon convent in southwestern Tortall.
Realm of Tortall: Beginning to advanced RPG based in the Tortallan universe, and set in Corus forty years after Trickster's Queen.
SpyGlass, A Tamora Pierce RPG: RPG based on the Tortallan world.
Within Winding Circle: RPG set in the world of the Circle of Magic books by Tamora Pierce.