Black Magic
Grant Howitt & Christopher Taylor
Spire RPG (1.10)
Magister's Guide
Jay Iles
Spire RPG (4)
Strata: a Spire sourcebook
Spire RPG (3)
Sin layout
Spire RPG (2)
Spire: The City Must Fall
Christopher Taylor & Grant Howitt
Spire RPG (1)