An online hackathon bringing together builders and founders across all crypto ecosystems to launch breakout startups.

Compete for $840,000 in prizes and $2.5 million in seed funding
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Crypto World’s Fair is an open competition of the ideas, technologies, and communities shaping the blockchain ecosystem.
Inspired by the historic world’s fairs, it brings together builders and founders who are ready to exhibit the products and innovations that are going to drive the next wave of crypto startups that bring the world's markets onchain.
These awards recognize the top-performing teams selected from submissions across all ecosystem tracks.

$30,000
Grand Prize
Supported by
$300,000
Shared across the next 20 best projects
$15,000 per project
$5,000
Public Good Prize
$5,000
University Prize
Choose an ecosystem and compete for its dedicated prize pool. Track prizes are awarded in addition to the awards above.







$100,000
Track prize pool
10 projects receive $10,000 each
All Hackathon winners will be interviewed and considered for Colosseum’s accelerator program. Accepted teams will receive the following:
$250,000
Pre-seed funding to kickstart your journey
Network
Exclusive access to an elite founder network

Mentorship
Direct ecosystem connections and 1:1 mentorship.



Join us
in San Francisco
For 12 weeks, collaborate directly with the Colosseum team at our office in SF. Get direct support, guidance, and access to seed funding.
The Colosseum team reviews all product submissions and determines the overall hackathon winners, in addition to selecting the winning founders admitted into the accelerator program.
The following builders, investors, and operators work with the Colosseum team by providing feedback and evaluating submissions in the dedicated hackathon tracks.

Adam Gutierrez
Maximizing Developer Gains, Phantom

Arihant Bansal
Engineer

Binji
Founding Member, Ethlabs

Daniel Sapkota
Cofounder, Lightcone

David Tso
Ecosystem & Ventures, Base

Dean
Director, Realms

Jed Halfon
Chief Strategy Officer, Anza

Jill Gunter
Chief Strategy Officer, Espresso Systems

Julian Deschler
Cofounder, Arcium

Julian Ma
Cofounder, Ethlabs

LBO
Angel Investor

Milian
Marketing, Arcium

Mitchell
Head of Fundraising, MetaDAO

Ray Zhang
Software Engineer, Ellipsis Labs

Sitaram
Cofounder, Avici

w.sol
DevRel, Drift
Workshops stream live on Discord. Browse the calendar to RSVP, add sessions to your calendar, and share them with your community.
View Event CalendarCrypto World's Fair Kickoff
Matty Taylor, Clay Robbins, and Nate Levine, Colosseum
Tempo Workshop
Sayeed Mehrjerdian, Tempo
Ethereum Workshop w/ Austin Griffith
Austin Griffith, Ethereum Foundation
Solana Agentic Payments
Ludo, Solana Foundation
Find Your Wedge with Arbitrum, in collaboration with Robinhood Chain
Jess, Arbitrum Foundation
Solana Privacy Workshop w/ Helius
Tilo, Helius
Zcash 101 Workshop
Squirrel, Zechub
Tokenization Workshop with the Solana Foundation
Andre and Brianna, Solana Foundation
Zcash Architecture(Z3) and RPC usage Workshop
Zcash Foundation
FROST Architecture, Wallets, and Payments Workshop on Zcash
Zcash Foundation
Solana Foundation Office Hours
Aaron, Solana Foundation