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Build mechanical computers powered by marbles to solve logic puzzles. Escape planet Eniac and discover how computers work.
Build mechanical computers powered by marbles to solve logic puzzles. Escape planet Eniac and discover how computers work.
4,198 backers pledged $404,071 to help bring this project to life.

Turing Tumble Progress Update #8: Virtual Pack Release

Posted by Paul Boswell (Creator)


I'll start with a quick update before we get to the Virtual Pack release.

1. Tonight we have a Skype meeting set up with LongPack to make sure they understand each of the fixes we requested and to get an update from them. We'll also find out how long it will take before we get the next iteration of the game. 

2. We're about to make the transition away from our Kickstarter page to an independent Turing Tumble website. I've been creating the site for the last month or so and it's getting close. (If you want a sneak peek, you can check out We'll be looking for feedback when it's ready. I'm no expert on web development, so any sage advice you can give would be greatly appreciated.

The Virtual Pack

We've been excited about this day for a long time! Today we're finally releasing the Virtual Pack to those who got it as an add-on or as part of their reward. Initially we said we'd release the virtual pack when we go into production. Well we're not in production yet (though I think we're close), but we want to give you the chance to start making things with it now. Especially those of you who want to make the game for a holiday gift.

Community forum

To help us all in this endeavor, I created a forum so we can collaborate on our projects, share ideas, and show off what we've done. The forum is at I've already posted some things in the "Make It" topic to get us started.

The Turing Tumble forum
The Turing Tumble forum

For all you super-makers out there looking for something more difficult, I also added some challenges! The challenges describe problems we ran into that we've never been able to solve. For example, can you design that tilt-adjustable board stand? A better crossover? Longer-distance bit connections? There will be some sort of prize for those who figure out good solutions, but we haven't figured out what they will be just yet.

What's in the virtual pack?

You will get an email from BackerKit soon with a download link to the Virtual Pack. The virtual pack contains:

  • Some basic instructions
  • STL files for all of the plastic parts
  • A pdf of the Turing Tumble puzzle book

Last night, Alyssa and I went back and forth on whether or not we should release the puzzle book. It will be important for some to have it (e.g., if it will be used to make a gift or to generate lesson plans), but we're afraid many of you will go through the puzzles now and spoil the experience for yourself. The game is way more fun when you have the physical game in front of you. But rather than keep the book from you, we decided to trust you and just say, in capital letters, 


There. I hate to use uppercase like that, but it's for your own good. :)

Creative Commons license

We want you to be able to make cool things from our designs, remix them, and share them. Therefore, everything in the Virtual Pack is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.   

We’ve had companies tell us we’re crazy for releasing the source files for our game – that it makes it way too easy for people to copy the game and undercut our business. That could be true, but we think the benefits will outweigh the risk. We think people like you will be able to use these plans to make amazing things we would never dream up on our own. We also think it will be a great way to spread the word about Turing Tumble. So please, if you make something out of these plans, consider sharing it! Share it with us on the community page, on Reddit, Facebook, Twitter, or anywhere else you think people will appreciate it.

If you have a question about the legality of something you want to do, even if it conflicts with the Creative Commons license or is covered by our patent, don’t hesitate to ask us. We truly don’t want that to stop individuals from doing cool stuff. We’re nerds at heart and we're all about open-source projects.

Can't wait to see your creations!!!

Paul and Alyssa

Catherine Villeret, Noel Yap, and 25 more people like this update.


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    1. Paul Boswell Creator on

      Thanks JJRR! Yes, it looks like you read my mini update in the main comments section. There are 4 big steps left - finalizing the injection molds, production, shipping to distribution facilities, and shipping to backers. Of those, the first is the most risky. I'm pretty confident we'll have it fulfilled by February, but we'll get our second iteration of the game next week and then we'll have a *much* better idea of how close we are. A lot depends on how good the molders are at making the changes we requested. I'll send another big update when we get that second iteration. Keep your fingers crossed!

    2. JJRR on

      This is great. Level of communication from the creators is perfect. Every update just reminds me how much I’m looking forward to the finished product.

      Has the timeline shifted materially? Are you still thinking February fulfillment is realistic?

    3. Paul Boswell Creator on

      @Edwin: Thank you! I'll fix that soon.

    4. Edwin Sauvé on

      Had a quick look at the website, looks really nice.

      One very important thing to fix asap, make the whole website https with a proper signed certificate in place!! The basic (non-login) can theoretically stay as is, but at least the community part with login MUST be https to be secure. If you want, you could contact me to help give some guidelines on how to do this.

    5. Paul Boswell Creator on

      And don't try and say, "My friend looked at the book..." because we'll know.

      We'll know.

    6. Paul Boswell Creator on

      @Joe Pregracke:
      -1 point for looking early.
      +2 points for finding an error and telling us about it.
      Thanks, Joe!

    7. Paul Boswell Creator on

      @Chris Charles: Thanks, Chris! You made our day.

    8. Missing avatar

      Joe Pregracke

      I know you said not to look at the book, but I couldn't resist. It looks great, and I can't wait until I get the real thing. I did notice one mistake, however. On the final puzzle (#60, Comparator), in the description for the equal case, the interceptor is given as M instead of E, like on the diagrams. Though maybe if I squint and turn my head just right... ;)

    9. Missing avatar

      Chris Charles on

      Another stellar update. I'm *so* glad I backed this project!

    10. Paul Boswell Creator on

      @Catherine: We can't WAIT! We just sent out the email blast about the digital download. Just tell me if you have any questions. I'll be more than happy to help.

    11. Catherine Villeret on

      What a great post! Thank you so much for letting us have the full virtual bundle!

      Sure thing I will keep you guys posted on our own FabLab's scaled up Wooden Turing Tumble...

      Sharing is caring :)