The Piecemakers Open Call

The search for the next great mechanical puzzle is officially on. Gather your devious designs, take seductive pics of your prototype, or just pick up a pencil and start to dream — submissions are now open for the Piecemakers Open Call.

Entry, Rules, & Prizes

  • Enter your name, email, upload design files, and share an optional statement telling us everything you think we need to know about this puzzle design.
  • All file types are permitted, please share photos, drawings, videos, and if you have CAD that we can 3D print, that’s ideal. We’d love to be able to play with your puzzle.  
  • If you have multiple designs, you can submit up to 5.
  • We will select 5 finalists based on our evaluation of the quality and uniqueness of the design, as well as adherence to the criteria laid out in the video above. All 5 finalists go into consideration for being produced as Craighill puzzles.
  • The Craighill community will then vote on the designs and choose the “Community Favorite”.
  • All 5 finalists will receive the full Craighill Puzzle Collection (6 puzzles, estimated value of $731).
  • The Community Favorite will receive the Full Puzzle Collection plus a $1000 Craighill Gift Card (estimated value of $1731).
  • Contest closes July 31st, 2024.
  • In submitting your design, you are agreeing to the Terms and Conditions
  • Once you hit the Enter Contest button, an email will be sent asking for you to verify your account. Be sure to check your spam folder and move it to your primary inbox.
  • Once verified and successfully logged in, you will be directed to your account page. Once there, click on the orange ‘Go to Store’ button. You will now have access to your Piecemakers Open Call file submissions via the now visible ‘Piecemakers Open Call’ link.
  • Please direct any further questions regarding entry, submissions, or contest details to

Join the Piecemakers Guild

The Piecemakers Guild is a home for designers, makers, and lovers of mechanical puzzles. We consider all Open Call entrants to be members in good standing, but really, anyone is welcome. Join us on Discord to seek the counsel of your fellow Piecemakers, and sign up for email updates.

Piecemakers Community Puzzle Box

  • "Keep up the stellar work at Craighill! Really an inspiration to all of us." - Joel, Member since 2024

  • "Stacking the puzzles. Goal would be Wavelinks on top." - Douglas, Member since 2024

  • "Keep the designs coming!" - Tim, Member since 2024

"Over the past eight years we have designed and developed some of the most beautiful, challenging, premium mechanical puzzles on Earth. We're really ramping up our puzzle design and manufacturing, and we want to see what you've got." - Zach, Co-founder