The next wave of crypto will need to be able to scale to millions and remain secure. Think about global payment systems with sub-cent fees, on-chain games that never shut off and financial tools that unlock value at the scale of tens of billions.

Re{Solve} is your chance to push the boundaries of blockchain. If you’re an engineer, creator, or a dreamer, this is where you explore what’s possible.

 

WHAT YOU WILL BUILD AND WHY IT MATTERS

Projects can be anything:

  • Serious builds that could grow into seed-funded startups

  • Playful experiments or “toy projects” created to learn and explore

  • Explorations of new frontiers like private transactions with no trace

You’ll work with ultra-low fees, security inherited from Ethereum, and the speed needed to build applications for a global audience.

See here the list of ideas proposed by sponsors

HOW WE'LL HELP YOU SUCCEED

You’re not building alone. We've designed this hackathon to give you everything you need to succeed.

  • Direct Access to Experts: Get guidance from the core teams at the Starknet Foundation, Starkware, Cartridge, Xverse, and other industry leaders.

  • Live Workshops & Training: We are hosting a full schedule of technical workshops on everything from Cairo fundamentals to scaling your on-chain game.

  • Prizes and Post-Hackathon Funding: Compete for a substantial prize pool. Build nicely and apply for opportunities like:

  • Dedicated Connections: The Starknet Foundation is committed to your success. We will provide personalized introductions to key individuals in the ecosystem to help you move forward.

  • A Global Community: Connect with a network of passionate builders and potential collaborators from around the world.

 

YOUR SUPPORT NETWORK

This hackathon is made possible by the commitment of our ecosystem partners, who will be actively involved in mentorship and judging:

  • Starkware: Core technology company pioneering zero-knowledge scaling solutions

  • Cartridge: Gaming and infrastructure platform for on-chain worlds.

  • Xverse: A leading Bitcoin wallet for Web3 apps and NFTs

  • Vesu: Starknet-native lending protocol. DeFi infrastructure for builders

  • Atomiq: Cross-chain swap solution enabling seamless conversions between Bitcoin (L1) and Starknet assets (e.g., WBTC, STRK, ETH)

  • Troves/Endurfi: DeFi yield aggregator and liquid staking protocol

  • Chipi Pay: Payment solutions provider making crypto usable in daily life

  • Wootzapp: Browser and extension platform enabling passive income through AI data contribution and DePIN

  • Fat Solutions: Tech venture studio supporting bold experimental projects

  • Open Zeppelin: Leading open-source platform providing smart contracts and security audits for blockchain applications.

Requirements

To be eligible, you must submit the following by the deadline. Projects can be new or existing, as long as clear progress is made during the hackathon.

  1. GitHub Repo (Required): Your code must be public and include a clear README.

  2. Demo Video (Required): A compelling video (max 3 minutes) that shows your project in action.

  3. Pitch Deck (Optional): A deck outlining the problem, your solution, and your future roadmap.

Tracks: Open to all innovations, including Payments, Bitcoin, Gaming, Mobile, Privacy, and an Open track for your most creative ideas.

Deadline

  • Submit on Devpost by Oct 15, 2025, 11:00 PM (PDT).

Hackathon Sponsors

Prizes

$47,500+ in prizes
+ other prizes
Cryptocurrency logo$3,000 in crypto
$44,500
Next-Gen Payments – Starknet Foundation Prize (1st Place)
$1,500 in cash
1 winner

First place prize of $1,500 in STRK.
This award recognizes the top project in the Next-Gen Payments track, showcasing innovation in payment solutions built on Starknet.
Eligible Submissions: All eligible submissions that enter the Payments track and build a payment-related project using any tool on Starknet

Next-Gen Payments – Starknet Foundation Prize (2nd Place)
$1,000 in cash
1 winner

Second place prize of $1,000 in STRK.
This award celebrates the runner-up project in the Next-Gen Payments track, highlighting creativity and technical execution
Eligible Submissions: All eligible submissions that enter the Payments track and build a payment-related project using any tool on Starknet

Next-Gen Payments – Starknet Foundation Prize (3rd Place)
$500 in cash
1 winner

Third place prize of $500 in STRK.
This award honors a strong project in the Next-Gen Payments track that demonstrates solid development and innovation on Starknet
Eligible Submissions: All eligible submissions that enter the Payments track and build a payment-related project using any tool on Starknet

Next-Gen Payments – Chipi Pay Prize (1st Place)
$600 in cash
1 winner

First place prize of $600 in STRK.
This award recognizes the top project in the Next-Gen Payments track, showcasing innovation in payment solutions using Chipi Pay on Starknet.
Eligible Submissions: All eligible submissions that enter the Payments track and build a payment-related project using Chipi Pay.

Next-Gen Payments – Chipi Pay Prize (2nd Place)
$400 in cash
1 winner

Second place prize of $400 in STRK.
This award celebrates a project in the Next-Gen Payments track that demonstrates creativity and technical excellence using Chipi Pay on Starknet.
Eligible Submissions: All eligible submissions that enter the Payments track and build a payment-related project using Chipi Pay.

On-Chain Worlds & Gaming – Cartridge Prize Pool (1st Place)
$2,500 in cash
1 winner

First place prize of $2,500 USD in STRK.
This award recognizes the top project in the On-Chain Worlds & Gaming track, showcasing creativity and innovation using Cartridge and Dojo Game Engine on Starknet
All eligible submissions that enter the Gaming track and build a project using Dojo

On-Chain Worlds & Gaming – Cartridge Prize Pool (2nd Place)
$1,500 in cash
1 winner

Second place prize of $1,500 USD in STRK tokens.
This award recognizes the top project in the On-Chain Worlds & Gaming track, showcasing creativity and innovation using Cartridge and Dojo Game Engine on Starknet All eligible submissions that enter the Gaming track and build a project using Dojo

On-Chain Worlds & Gaming – Cartridge Prize Pool (3rd Place)
$1,000 in cash
1 winner

Third place prize of $1,000 USD in STRK.
This award recognizes the top project in the On-Chain Worlds & Gaming track, showcasing creativity and innovation using Cartridge and Dojo Game Engine on Starknet
All eligible submissions that enter the Gaming track and build a project using Dojo

Open Track – Starknet Foundation Prize Pool (1st Place)
$1,800 in cash
1 winner

First place prize of $1,800 USD in STRK.
This award recognizes the most outstanding project in the Open Track, showcasing exceptional innovation and impact on Starknet
Eligible Submissions: All eligible submissions that enter the Open Innovation track and build a project using any tool on Starknet

Open Track – Starknet Foundation Prize Pool (2nd Place)
$900 in cash
2 winners

Two second-place prizes of $900 USD in STRK each.
This award celebrates two outstanding runner-up projects in the Open Track, recognizing creativity, technical excellence, and contribution to the growth of the Starknet ecosystem
Eligible Submissions: All eligible submissions that enter the Open Innovation track and build a project using any tool on Starknet

Open Track – Starknet Foundation Prize Pool (3rd Place)
$400 in cash
1 winner

Third place prize of $400 USD in STRK.
This award recognizes a promising project in the Open Track that showcases creativity and practical implementation on Starknet
Eligible Submissions: All eligible submissions that enter the Open Innovation track and build a project using any tool on Starknet

Open Track – OpenZeppelin Prize Pool (1st Place)
$2,000 in cash
1 winner

First place prize of $2,000 USD in STRK.
This award recognizes the top project in the Open Track that demonstrates outstanding innovation and technical execution using OpenZeppelin contracts on Starknet
Eligible Submissions: Any project submitted to the Open Innovation track that uses OpenZeppelin contracts will be eligible

Open Track – OpenZeppelin Prize Pool (2nd Place)
$1,000 in cash
1 winner

Second place prize of $1,000 USD in STRK.
This award celebrates a high-quality project in the Open Track, showcasing creativity and solid development using OpenZeppelin contracts on Starknet
Eligible Submissions: Any project submitted to the Open Innovation track that uses OpenZeppelin contracts will be eligible

Privacy & Identity - Fat Solutions Prize Pool
$500 in cash
2 winners

$1,000 USD prize pool in STRK.
Two winners will each receive $500 USD in STRK.
The exact allocation and selection will be determined by Fat Solutions
Eligible Submissions: All eligible submissions that enter the Privacy track and build a project in privacy and identity

Privacy & Identity - Wootzapp Prize Tool
1 winner

$2,000 in Gemini 2.5 Pro API Credits
The number of winners and allocation will be defined by Wootzapp
Eligible Submissions: All eligible submissions that enter the Privacy track and build a project using Wootzapp

Bitcoin Unleashed – Starknet Foundation Prize Pool (1st Place)
$1,500 in cash
1 winner

First place prize of $1,500 USD in STRK.
This award recognizes the top Bitcoin-related project built on Starknet, demonstrating outstanding innovation and technical excellence
Eligible Submissions: All eligible submissions that enter the Bitcoin track and build a Bitcoin-related project

Bitcoin Unleashed – Starknet Foundation Prize Pool (2nd Place)
$1,000 in cash
1 winner

Second place prize of $1,000 USD in STRK.
This award celebrates a strong runner-up project built on Starknet that showcases creativity and technical execution within the Bitcoin track
Eligible Submissions: All eligible submissions that enter the Bitcoin track and build a Bitcoin-related project on Starknet

Bitcoin Unleashed – Starknet Foundation Prize Pool (3rd Place)
$500 in cash
1 winner

Third place prize of $500 USD in STRK.
This award honors a promising Bitcoin-related project that demonstrates innovation and impact using Starknet
Eligible Submissions: All eligible submissions that enter the Bitcoin track and build a Bitcoin-related project on Starknet

Bitcoin Unleashed – Xverse Prize Pool (1st Place)
1 winner

Enterprise Launch Package ($6,000)
*3 months Enterprise Plan
*Dedicated onboarding + bi-weekly mentorship with the Xverse Team
Eligible Submissions: All eligible submissions that enter the Bitcoin track and build a Bitcoin-related project using Xverse.

Bitcoin Unleashed – Xverse Prize Pool (2nd Place)
1 winner

Pro Growth Package ($2,000)
*4 months Pro Plan
*Onboarding + monthly mentorship
Eligible Submissions: All eligible submissions that enter the Bitcoin track and build a Bitcoin-related project using Xverse.

Bitcoin Unleashed – Xverse Prize Pool (3rd Place)
1 winner

Pro Kickstart Package ($1,000)
*2 months Pro Plan
*Dedicated onboarding
Eligible Submissions: All eligible submissions that enter the Bitcoin track and build a Bitcoin-related project using Xverse.

Bitcoin Unleashed – Atomiq Prize Pool (1st Place)
Cryptocurrency logo
$1,500 of BTC
1 winner

Bitcoin Unleashed – Atomiq Prize Pool (2nd Place)
Cryptocurrency logo
$1,000 of BTC
1 winner

Bitcoin Unleashed – Atomiq Prize Pool (3rd Place)
Cryptocurrency logo
$500 of BTC
1 winner

Bitcoin Unleashed – Troves Prize Pool (1st Place)
$750 in cash
1 winner

First place prize of $750 USD in STRK.
This award recognizes the top Bitcoin-related project built using Troves.
Eligible Submissions: All eligible submissions that enter the Bitcoin track and build a Bitcoin-related project using Troves.

Bitcoin Unleashed – Troves Prize Pool (2nd Place)
$500 in cash
1 winner

Second place prize of $500 USD in STRK.
This award celebrates an outstanding runner-up project built using Troves within the Bitcoin track
Eligible Submissions: All eligible submissions that enter the Bitcoin track and build a Bitcoin-related project using Troves

Bitcoin Unleashed – Troves Prize Pool (3rd Place)
$250 in cash
1 winner

Third place prize of $250 USD in STRK
This award honors a strong project demonstrating innovation and technical execution using Troves within the Bitcoin track
Eligible Submissions: All eligible submissions that enter the Bitcoin track and build a Bitcoin-related project using Troves

Bitcoin Unleashed – VESU Subtrack Prize: Best UX Flow
$1,000 in cash
1 winner

$1,000 USD total prize pool in STRK tokens
1 winner will receive this prize
Eligible Submissions: All eligible submissions that enter the Bitcoin track and build a Bitcoin-related project using Vesu.

Bitcoin Unleashed – VESU Subtrack Prize: Best Mobile DeFi
$1,000 in cash
1 winner

$1,000 USD total prize pool in STRK tokens
1 winner will receive this prize
Eligible Submissions: All eligible submissions that enter the Bitcoin track and build a Bitcoin-related project using Vesu.

Bitcoin Unleashed – VESU Subtrack Prize: Best Yield Wizard
$1,000 in cash
1 winner

$1,000 USD total prize pool in STRK tokens
1 winner will receive this prize
Eligible Submissions: All eligible submissions that enter the Bitcoin track and build a Bitcoin-related project using Vesu.

Privacy & Identity - Starkware Prize Pool
$3,000 in cash
3 winners

$3,000 USD prize pool in STRK tokens
The number of winners (between 1 and 3) and the exact allocation will be determined by Starkware
Eligible Submissions: All eligible submissions that enter the Privacy track and build a project in privacy and identity

Bitcoin Unleashed - Starkware Prize Pool
$4,000 in cash
2 winners

$4,000 USD prize pool in STRK tokens
The number of winners (between 1 and 3) and the exact allocation will be determined by StarkWare
Eligible Submissions: All eligible submissions that enter the Bitcoin track and build a Bitcoin-related project

Mobile-First dApps - Starkware Prize Pool
$3,000 in cash
1 winner

$3,000 USD prize pool in STRK tokens
The number of winners (between 1 and 3) and the exact allocation will be determined by Starkware
Eligible Submissions: All eligible submissions that enter the Mobile track and build a mobile-first dApp project

Devpost Achievements

Submitting to this hackathon could earn you:

Judges

Omar Espejel

Omar Espejel
Starknet Foundation

Adam Borcany

Adam Borcany
Atomiq

Daniel Kronovet

Daniel Kronovet
Cartridge

Marc

Marc
Vesu

Adrien Lacombe

Adrien Lacombe
Lead of Bitcoin Development at the Starknet Foundation

Annabel

Annabel
Payments Lead at Starknet Foundation

Teddy Pender

Teddy Pender
Lead in Privacy-Focused Application Development at Starknet Foundation

Eric Nordelo

Eric Nordelo
Open Zeppelin

Arthur Gousset

Arthur Gousset
CTO & Co-founder at Workback.ai

Judging Criteria

  • Technical Execution
    How well is the project built? Is the code, design, or prototype functional and well implemented?
  • Innovation and Creativity
    How original and creative is the idea? Does it push boundaries or explore new possibilities?
  • Impact and Usefulness
    Does the project solve a real problem or create meaningful value for users or communities?
  • Presentation and Clarity
    Is the project clearly explained through the submission, demo, or documentation? Can others easily understand how it works?
  • Progress During Hackathon
    How much progress or development was achieved during the hackathon, regardless of whether the project started earlier?

Questions? Email the hackathon manager

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Hackathon sponsors

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