Saving Satoshi


What it’s about

The year is 2139. The last bitcoin is two weeks from being mined. For months, a clock has ticked down in Satoshi Square.

The world awaits the last block. Then, suddenly, the network grinds to a halt.

You receive a holocat from someone using the name Satoshi Nakamoto. (It’s like any other e-hologram, but this one is shaped like a cat). You open the holocat by booping its nose curious to hear what it has to say...

Built with fun

Saving Satoshi is a light-hearted first point of contact for coders who are curious about Bitcoin development. Saving Satoshi has a mix of technical text and code-based challenges, but the challenges should be doable for anyone with basic coding skills. The project is free and open source (FOSS) and all the art has been generated using text-to-image tools like Midjourney.

This project is in continuous development and takes an iterative approach to incorporate feedback as we release new chapters. There are currently ten chapters mapped out. However more may be added as the project continues to grow.

How to contribute

We’re an open-source project, so all doors are open for you to help shape it.


A great way to contribute is to go through Chapter 1 and give us any feedback on the overall experience you might have using this form.


All suggestions are welcome, including content changes, game mechanics – really anything. We are also always looking for help reviewing and QA-ing code changes. For code improvements, you can directly open an issue or submit a pull request on GitHub.

If you want to get involved with design, story, or anything else, join us in the #saving-satoshi channel in the Bitcoin Design Discord. Mention how you’d like to contribute and we’ll help point you in the right direction.

Our commitment to privacy

At Saving Satoshi, we are deeply committed to ensuring the privacy and security of our users. We believe in transparency and want you to understand how and why we track app usage. To achieve this, we use a powerful tool called Umami.

What is Umami?

Umami is an open-source analytics platform that helps us gather essential insights about how you use our app. It allows us to make data-driven decisions and continuously enhance our product to better meet your needs. You can view the Umami dashboard here.

What Data Do We Collect?

Rest assured, we only collect non-personal and anonymized data, such as:
  1. Product Improvement: We use the data to identify areas where our app can be improved. By understanding how you use our app, we can make it more efficient, user-friendly, and secure.
  2. Compatibility: Understanding the devices and platforms you use allows us to optimize our app for various configurations, ensuring it works seamlessly for you.

Your Privacy Matters

We want to emphasize that your privacy is of utmost importance to us. We do not collect any personally identifiable information, and the data we gather is used solely for the purpose of improving our app. Your data is never shared or sold to third parties.

If you have any concerns or questions about our data collection practices or privacy policies, please don't hesitate to contact us. We are committed to providing you with a transparent and secure experience while using our app.


Now be quick, Satoshi needs you.


An open-source production by the bitcoin community.

Check the code