Crypto World's Fair Hackathon by Colosseum

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

Crypto World's Fair is an open competition of the ideas, technologies, and communities shaping the blockchain ecosystem. Builders and founders exhibit the products and innovations driving the next wave of crypto startups that bring the world's markets onchain. Submissions are due October 12, 2026.

Teams compete for $840,000 in prizes and $2.5 million in seed funding, including a $30,000 grand prize and $300,000 shared across the next 20 best projects. All hackathon winners are interviewed and considered for Colosseum's accelerator program with pre-seed funding, founder network access and mentorship.

Ecosystem tracks with dedicated prize pools include Solana, Ethereum, Hyperliquid, Base, Tempo, Arbitrum, Zcash and Robinhood Chain, each judged with builders, investors and operators from those ecosystems.

The Colosseum team reviews all submissions, joined by track judges including Clay Robbins, Matty Taylor and Nate Levine alongside builders and investors from Phantom, Base, Arcium, MetaDAO and Ellipsis Labs.

All hackathon winners are interviewed and considered for the Colosseum accelerator program with pre-seed funding, founder network access and mentorship, including a residency collaborating directly with the Colosseum team.

All workshops stream live on Discord, including the kickoff with the Colosseum founders. Participants can watch live, ask questions and follow the program through the event.