Blockchain Hack Kraków - Submissions

About Blockchain Hack Kraków

Blockchain Hack Kraków is a Solana hackathon organized by Superteam Poland.

It starts onsite in Kraków on September 19 - 20, 2026. This is the kickoff. You form your team, start building and work side by side with mentors. It's the best moment to ask questions, get feedback on your idea and get help with technical problems.

After the onsite weekend, the hackathon continues. You have until October 11 to keep building and improving your project. When it's ready, submit it here for judging.

Timeline

• September 19 - 20: Hackathon kickoff in Kraków. Build with your team and work with mentors.

• September 21 - October 11: Keep building and improving your project.

• October 11, 23:59 CEST: Deadline to submit your project here on Superteam Earn.

• October 12: Deadline to submit your project to Colosseum.

• October 16: Winners announced.

Eligibility

To win a prize, your project must meet both of these conditions:

1. Your project is new
Projects must have been in development for no more than 2 weeks before the hackathon start date (September 19). Pre-existing ideas are welcome, but most of the development must happen during or close to the event.

2. Your project is submitted to Colosseum
You must also submit (as a polish project) your project to the Colosseum Crypto World's Fair Hackathon by October 12, 2026. It's a global online hackathon with $840,000 in prizes and $2.5M in seed funding.

Register here: colosseum.com/worldsfair

Projects without a Colosseum submission will not be judged.

Rewards

• 🥇 1st place: 1,000 USDG

• 🥈 2nd place: 600 USDG

• 🥉 3rd place: 400 USDG

Judging Criteria

• Innovation: an original idea or a new approach

• Technical execution: a working product with good use of Solana

• Product: solves a real problem and is easy to use

• Potential: could grow into a real startup

Resources

• Crypto World's Fair - main hackathon page

• Superteam Build - a place with over 200 ideas that are perfect for your hackathon project

• Superteam Hackathon Resources Website 

• Colosseum Copilot - AI brainstorm tool for project ideas

• Solana.new - an all in one kit to go from idea to shipped project

• Superteam Poland Hackathon Group