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Colosseum · HackathonColosseum hackathons
Crypto's largest online startup competition, and the fall 2026 edition is live: Crypto World's Fair runs 14 September to 12 October, accepts submissions from outside Solana for the first time, and has now published its prize table — $840,000, headlined by a $30,000 grand prize, $15,000 each to the next 20 projects, and a $5,000 University Prize for the best student team.
Dates & timeline
Prizes
- $840,000 total prize pool, per colosseum.com/worldsfair
- Grand Prize: $30,000
- Next 20 projects: $15,000 each ($300,000 total)
- Solana ecosystem track: $100,000 — $10,000 each to 10 projects
- Public Good Prize: $5,000; University Prize: $5,000 for the best student team
- The eight other ecosystem tracks are shown without published pools — the rest of the $840,000 is not yet itemised
- Separately, $2.5 million in seed funding and the accelerator's $250,000 pre-seed — investment in your company, not cash prizes
- Crypto's largest online startup competition, two global online hackathons a year per the official site
- 8,621 builders registered for Crypto World's Fair as of 5 October 2026 — up from 4,963 on 21 September
- 21 projects are paid $15,000 or more before ecosystem tracks are counted
- 80,000+ builders have competed in Colosseum hackathons to date
- First Colosseum competition to accept submissions from outside Solana
Why it's worth your time
Colosseum runs crypto's largest online startup competition, and its own site states it runs two global online hackathons per year. Unlike a weekend hackathon, each cycle is a multi-week build sprint judged like a startup pitch — the best teams don't just win prize money, they get into Colosseum's accelerator, which invests $250,000 in pre-seed funding in its picks. It's fully online and global, which is what makes it reachable for an Indian student team.
What is open right now is Crypto World's Fair, which runs 14 September to 12 October 2026 with registration still open — 8,621 builders had registered as of 5 October 2026, up from 4,963 on 21 September and 1,870 on 11 September, against the 80,000+ who have competed in Colosseum hackathons overall. The notable change is scope: Colosseum calls it the first of its competitions to accept submissions from outside Solana, open to builders across blockchain ecosystems. The event page names Solana, Ethereum, Hyperliquid, Base, Tempo, Arbitrum, Zcash and Robinhood's chain among the participating networks. Prizes are structured around a select group of ecosystems rather than use cases, bounties or regions, each track backed by a dedicated ecosystem partner, and every submission is also eligible for a general prize pool awarding the best products across all chains.
The money, now that it is published — this card deliberately carried no figures until it was. Colosseum's own page states "Compete for $840,000 in prizes and $2.5 million in seed funding." What is itemised on that page: a $30,000 grand prize, $300,000 spread as $15,000 each to the next 20 projects, a $5,000 Public Good Prize, a $5,000 University Prize, and a $100,000 Solana ecosystem track paying $10,000 each to 10 projects. That accounts for $440,000; the eight other ecosystems shown (Ethereum, Hyperliquid, Base, Tempo, Arbitrum, Zcash and Robinhood's chain among them) appear as logos without published pools, so the remainder of the $840,000 is presumably in those tracks and is not yet a verified figure. Note also that 21 projects are paid $15,000 or more before any ecosystem track is counted, which is a genuinely wide podium for a four-week build. For scale from a completed cycle: the spring 2026 Solana Frontier Hackathon drew 2,857 team submissions.
Two things to keep straight. The $2.5 million in seed funding and the accelerator's $250,000 pre-seed are investment in your company, not prize money paid to you — only the prize table above is cash. And the always-open Eternal Challenge remains paused: colosseum.com/eternal states "New sprints are closed" and "Eternal is paused." When it runs it is a four-week sprint with a one-minute video update each week, and its Eternal Award is $25,000 in non-dilutive stablecoins plus consideration for that pre-seed. Until it reopens, the twice-yearly hackathon is the way in.
How to apply
Register at colosseum.com/worldsfair — registration is still open with no published cutoff, but the build window closes 12 October, so every day you wait is a day of build time gone.
Read the prize table and pick the ecosystem track you will actually build on. Only the Solana track's pool ($100,000, $10,000 each to 10 projects) is published; if you target another ecosystem, check its track page for its own pool before committing.
Form a team around a product you can genuinely launch in four weeks — this is judged like a startup competition, not a demo contest.
Check the eligibility shape before you invest: it is aimed at teams building a new startup that has not raised significant outside capital, and prior development work on the project has to be disclosed.
Build in public during the window, use the ecosystem partners' resources, and submit before 12 October 2026.
Frequently asked questions
When is the next Colosseum hackathon?
It is open now and already running. Crypto World's Fair started 14 September 2026 and submissions close 12 October 2026. Registration is still open with no published cutoff, but you are joining a four-week build already in progress.
Do I have to build on Solana?
Not for this edition. Colosseum describes Crypto World’s Fair as the first of its competitions to accept submissions from outside Solana, open to builders across blockchain ecosystems. Prize tracks are organised around a select group of ecosystems, each backed by a partner, and every submission is also eligible for a general prize pool awarding the best products across all chains. The event page lists Solana, Ethereum, Hyperliquid, Base, Tempo, Arbitrum, Zcash and Robinhood's chain among the participating networks.
How much can I actually win?
Enough to be worth four weeks. Colosseum's page states "Compete for $840,000 in prizes and $2.5 million in seed funding." Itemised: a $30,000 grand prize, $15,000 each to the next 20 projects, a $5,000 Public Good Prize, a $5,000 University Prize, and a $100,000 Solana ecosystem track paying $10,000 each to 10 projects. That is $440,000 of the $840,000; the other ecosystem tracks are listed without published pools. The $2.5 million in seed funding is investment, not prize money.
Can Indian students participate?
Yes — the competition is fully online and global. The eligibility that matters is the startup shape: it is aimed at teams building a new startup that has not raised significant outside capital, and you must disclose prior development work on your project. Good news for students since our last check: a $5,000 University Prize for the best student team is on this edition's published prize table.
Is it free to enter?
Yes, entry is free.
How is it different from a normal hackathon?
It's four weeks, not a weekend, and it's judged like a startup competition — working product, real users if possible, and a pitch. The accelerator invests $250,000 in pre-seed funding in top teams, which is investment in your company rather than a cash prize.
What happened to the Eternal Challenge?
It is paused. colosseum.com/eternal now states "New sprints are closed" and "Eternal is paused." When it runs, it is a four-week sprint in which you post a one-minute video update each week, and its Eternal Award is $25,000 in non-dilutive stablecoins plus consideration for the accelerator's $250,000 pre-seed round. Until it reopens, the twice-yearly hackathon is the way in.
Do I need Solana experience?
Less than before, since this edition accepts submissions from outside Solana. A four-week format also leaves genuine time to learn — the ecosystem partners publish starter kits and run support channels during each cycle.
Official links
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