About the challenge

Join the community of developers, gather together in a team and show us how good you are!

We are looking for smart individuals and teams, from all over the world, who excel at functional programming. You are invited to learn more about æternity and to explore our unique Smart Contract language Sophia!

The Hæckathon will start remotely and have its end right after the Æternity Universe Two conference at the CryptoCastle, a historical place right in the heart of Germany.

Take this opportunity to code and finish your Submission during the Hæckathon Finale on-site at the CryptoCastle at a unique location where you also have the chance to meet some of the æternity lead developers in-person! Don't worry if you can't make it to the castle, you can also finish your project remotely.

To grow the developer community ecosystem we want you to build meaningful decentralized applications that drive user adoption.

You identified an important missing piece in our ecosystem? Build it and have the chance to win a prize of up to $15,000!


Date Event Details
01.08.2022 Start of the Hæckathon Sign up, join the community, find a team, generate an idea & start hæcking!
17./18.09.2022 Hæckathon Finale

You're invited to spend the final two days of the Hæckathon on-site at the CryptoCastle right after the Æternity Universe Two conference where you have the unique opportunity to meet some of the æternity developers in-person!

Sign up*

*If your project convinces us we will support you with travel expenses and accommodation! Form open until 04.09.2022, please let us know as soon as possible if you want to come to the CryptoCastle.

18.09.2022 Submission Deadline

Complete the submission form BEFORE 11:59 PM.

Judging Period & Community Voting

The judges will review all submissions and determine the winners.

The community will vote on their favorite projects and decide which team wins the Community Choice Award.

26.09.2022 Winner announcement

We'll officially announce the winners of the Hæckathon. Good luck!

Note: We will conduct some remote workshops and live Q&A sessions during the Hæckathon which will be added to the timeline later.

Contact & Support Channels

About æternity

Engineered to scale and last, æternity is an easily accessible blockchain platform for the global public. With numerous innovative functionalities and performance far ahead of earlier blockchains, æternity allows its users and community to seamlessly venture into the new era of society, economy, and digital interactions.

At its core, æternity is a blockchain protocol and a smart contract platform that goes beyond what traditional blockchains do. It is designed to be fault-tolerant and perfect for cases with billions of transactions in DeFi and more.

Read more at https://aeternity.com!


What to Build

There are no limitations!

Any decentralized application that you think can drive ecosystem growth and user adoption can be submitted!

In case you really need some hints, here is a list of topics:

  • Decentralized Finance (DeFi)
    • Crowdfunding
    • Trading
    • Lending / Borrowing
    • Staking
    • Insurance
    • Prediction Markets
    • Cross-Chain Atomic Swaps
  • Non-fungible tokens (NFTs)
    • Minting Solution / Launchpad
    • Marketplaces
    • Borrowing
  • Decentralized Autonomous Organizations (DAOs)
  • Gaming
  • Social networks
More specific and æternity feature related uses cases
  • AENS Marketplace for trading names
  • Meta transactions via "PayingForTx"
    • Provide an easy to use service that can handle signed transactions from users and pay their tx fee
  • Oracles
    • Random Number Generator (RNG)

    • Price oracles (data feeds)

    • Crowd based oracles for decision making

    • (Reliable) data oracles by calling a generic API (e.g. Wheather, Flight delay)

  • State-Channels
    • Pay-per-use
      • Video on-demand (á la Netflix)
      • Scientific Papers, pay only for parts you read
    • Decentralized General Payment Provider (á la Visa/Mastercard)
      • Open a channel with payment provider to pay the service provider (e.g. coffee shop, online service, train ticket, ...)
    • Patreon/Twitch/OnlyFans clone
      • Content producer delivers content and users pay if they like
      • Content itself could also be transmitted via State Channel
  • Generalized Accounts
    • (Social) recovery options
    • Spending limits
    • Multi-sig solutions
    • Usage of an alternative signature algorithm

What to Submit

  • Project name and a list of all team members
  • A description of what your project does and why you decided to build it
  • Demo video or presentation slides.
    • Your video should be around 3 minutes long and include a demo of your working project. (Videos must be made publicly visible)
  • Access to your GitHub code repository
  • Complete submission form
    • Provide all of the required fields on your Devpost submission form, BEFORE the final deadline on September 18, 2022, at 11:59 PM CET

Hackathon Sponsors


$30,000 in prizes
Cryptocurrency logo Prizes paid in cryptocurrency

1st place
Cryptocurrency logo

• $15,000 worth of Æ coins
• Feature in an official blog post announcing the winning submissions

2nd place
Cryptocurrency logo

• $8,000 worth of Æ coins
• Feature in an official blog post announcing the winning submissions

3rd place
Cryptocurrency logo

• $5,000 worth of Æ coins
• Feature in an official blog post announcing the winning submissions

Community Choice Award
Cryptocurrency logo

• $2,500 worth of Æ coins
• Feature in an official blog post announcing the winning submissions

Devpost Achievements

Submitting to this hackathon could earn you:


Benjamin Huskic

Benjamin Huskic
CTO / aeternity

Omar Saadoun

Omar Saadoun
CMO / aeternity

Marco Walz

Marco Walz
Lead Developer Relations / aeternity

Yanislav Malahov

Yanislav Malahov
Founder / aeternity

Judging Criteria

  • Potential impact
    How will this project impact the growth of the æternity ecosystem?
  • Functionality and code quality
    How well does the project work and how well is it written?
  • Documentation
    How well is the project documented?
  • Go-to-market strategy
    Provide us a path to bring your idea to the market. Let us and the community know about a potential go-to-market strategy!

Questions? Email the hackathon manager

Invite others to compete

Hackathon sponsors

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