Over $1,000,000 in prizes & seed funding
Registration is open!
Sui Overflow 2026 is Sui’s global hackathon, bringing together builders and explorers worldwide to push what’s possible.
$500K+ in total prizes across core and sponsored tracks - from AI agents that act, to financial rails that move without friction, to tools that make every developer faster. This is your moment to build something real on one of the most powerful and composable platforms.
Top teams also gain access to exclusive developer opportunities and a high-quality network to take their projects beyond the hackathon.
Why join Sui Overflow 2026?
Sui Overflow 2026 is a global virtual hackathon featuring selected tracks, with opportunities designed to recognize both top-performing teams and standout projects.
Timeline
Road to Sui Overflow 2025
Registration opens
February 12
Hackathon
Project submission
Open until May 23
Demo days
June 13 & 14
Final winners announced
End of June
OceanDAO Summit
Period
July 21–31, 2025
Location
SuiHub Athens, Greece
Access Sui’s engineering and ecosystem experts
Chance to win your share of the prize pool
Build alongside high-signal teams from around the world
Join exclusive events and sessions
Get your project in front of leading judges and leaders
Create momentum for your project beyond the hackathon
Tracks
Agentic Web
Core Track: Build autonomous AI agents that can act, transact, and coordinate using Sui’s object model and composability.
DeFi & Payments
Core Track: Create financial primitives or payment rails on Sui that are fast, seamless, and usable in real-world scenarios.
1st place prize sponsor:
3rd place prize sponsor:
Walrus
Specialized Track: Leverage Walrus to build applications that handle large, off-chain, or verifiable data.
DeepBook
Specialized Track: Build trading or liquidity applications powered by DeepBook’s on-chain orderbook.
Prizes
Prizes per core track
Applies to: The Agentic Web (AI) · DeFi & Payments ·
1st place
$30,000 USD
2nd place
$15,000 USD
3rd place
$10,000 USD
4th place
$7,500 USD
Specialized Track Pools
See participant handbook for more details.
Walrus
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$70,000 USD
DeepBook
$70,000 USD
EVE
$50,000 USD
ONE
$70,000 USD
Awards
These can be won alongside other prizes.
University Award
University Award sponsor:
$2,500 USD to 10 winners
If youʼre a team of university students, this special hackathon prize is for you!
And More...
$250,000+ in value for winning projects
From audit credits to hands-on support, eligible winners receive resources designed to help take their project to the next level.
Two years of Sui’s flagship hackathon
Across two editions, Sui Overflow drew 5,000+ registrants, 950+ project submissions, and distributed over $1M in prizes.
FAQ
Sui Overflow 2026 is a global online hackathon where developers and builders create projects on Sui across focused tracks.
Itʼs an opportunity to build alongside a global community, explore new ideas, and gain recognition through prizes and ecosystem support.
Pre-registration is now open. Sign up to receive updates, early access, and next steps as the hackathon approaches.
Anyone is welcome to participate in Sui Overflow 2026! Whether you're a seasoned Web3 developer, a designer, or just starting to explore blockchain, youʼre welcome to join. There are no experience requirements - just bring your ideas and motivation.
You must select the one track that best represents your project.
Yes. Each track will have dedicated mentors and workshops. Stay tuned for updates.
There are many developer resources available to help you get started with Sui and Move. Access the Sui developer docs, explore developer tools and resources on the Sui developer portal, or take a self-paced intro course to Move to get started.
If you have additional questions, please contact devrel@sui.io or @suidevelopers