I've been self publishing Stonebreaker since 2013 under my Shipwreck Planet imprint, and there are currently 4 books available in the series:

• The Shipwreck Planet Store
• Stonebreaker: Part One
• Stonebreaker: Part Two
• Stonebreaker: Part Three
• Stonebreaker: Part Four

Over the Wall and Stonebreaker have also been published by Uncivilized Books. You can purchase them here:

• Over the Wall
• Stonebreaker (collects parts 1-3)

For everything else, please check my portfolio site at peterwartman.com.