Grant Howitt
Books
Goblin Quest
ISBN 2370000235299
Odd Jobs
2021
ISBN 9781914408939
Sin: A Spire Sourcebook
ISBN 9781913032210- No cover
Shadow Operations
2020
ISBN 9781913032142 
Unbound
2016
ISBN 9780996376532
Spire: The City Must Fall
2018
ISBN 9780996376556
Strata: A Spire RPG Sourcebook
ISBN 9781913032005
Paranoia: Red Clearance Edition
ISBN 9781908460646
Heart: The City Beneath
2020
Black Magic: a Spire RPG sourcebook
Book of Masks: a Spire RPG sourcebook
Eidolon Sky: a Spire RPG scenario
Blood and Dust: a Spire RPG scenario