You showed up to one of our ideathons. Your interest is peaked. This site has everything you need to go from curious to submitted — and you're not building alone.
Hackathon ends May 11. Submissions close the same day. Don't postpone.
$10,000 in prizes only Dutch teams can win. You must also submit to Colosseum to qualify.
Jump to section →Two videos and a GitHub link. That's the whole checklist.
Jump to section →Your first impression with judges. How to write a clear headline, audience, and "why now."
Jump to section →May 4–8 at Bitvavo HQ Amsterdam. Workshops, pitch roast, submission prep — free to attend, lunch included.
Jump to section →Telegram, Buildstation, the weekly builder sync, or DM Evolu / Wigby directly.
Jump to section →Make an X account for your project. Build in public — it's the tiebreaker judges look at.
Jump to section →Main Telegram, Legends.fun invite, and the invite-only Hackathon Builders group.
Jump to section →Follow @SuperteamNL on X and subscribe to our Luma calendar for every session.
Jump to section →Superteam NL is running two exclusive side-tracks alongside Colosseum. If you're building from the Netherlands, you're eligible. Two extra shots at real money on top of the main hackathon prize pool.
Open to any Dutch team submitting to Colosseum. Build something great from the Netherlands, ship it, and you're in the running.
Eligibility details, judging criteria, and submission requirements on the listing.
A dedicated pool for Dutch builders shipping their first Solana project. Never deployed on Solana before? This one's yours.
If it's your first Solana build, don't sleep on this. Smaller pool, way less competition.
Don't let this feel like a wall. Colosseum's submission checklist is short — two videos and a repo link. We'll break each one down in the next sections.
A screen recording of your live product actually working. Not a deck, not a code walkthrough.
Problem, solution, team, traction. Four beats, under two minutes.
A link to your code repo. Consistent commits matter — judges can see your history.
Colosseum asks you to fill out your project details (headline, description, problem, solution, and more) as part of the submission. You can do this in advance and edit it any time right up until the deadline — no pressure to get it perfect on day one.
Want to nail them? See section 02: Project Details →
Colosseum encourages projects to open-source their code, but you can keep it private and share it with [email protected] so only the judges can review it.
Trouble sending the invite? Here's a quick video guide →
Judges see hundreds of submissions. They scan first, and only click into your pitch if something hooks them. Your project details — the headline, the who-it's-for, the why-now — do that hooking. Treat them like you would a landing page, not form fields.
Think of it like a startup headline. Painfully clear. No jargon. If a smart person outside of crypto can't understand it in 5 seconds, it's too vague.
[What it does] + [How it does this] + [Why it makes sense]"A decentralized protocol for trustless coordination."
"A tool that lets freelancers get paid instantly by clients, without relying on platforms like Upwork. It uses on-chain payments to remove intermediaries, reduce fees, and eliminate payout delays."
Be specific about the user. Vague audiences = vague product. The clearer the user, the sharper everything downstream gets.
[Product] for [Specific user]"An on-chain orderbook for NFT traders."
"A wallet that helps AI agents pay for APIs autonomously."
"A prediction market for crypto traders."
You can add a little more context, but keep it brief — most context belongs in your pitch, not in the details field.
Your project matters most if it solves a real problem. Define the problem clearly. Show how your product solves it. Done properly, this naturally answers both "why this?" and "why now?" — the problem exists, and you have the solution.
[Problem] + [Solution] + [Why now]Many new users struggle with sending crypto due to complex wallet addresses, confusing interfaces, and fear of irreversible mistakes.
We're building a simple, username-based payment app on Solana that lets users send and receive crypto as easily as sending a message.
With recent improvements in Solana UX tooling and fast, low-cost transactions, it's now possible to offer a seamless experience that feels familiar to mainstream users.
Colosseum is a startup competition, not a classic hackathon. Showing traction and interest matters more than having a fully-built product. Show the vision.
Five days of heads-down building with fellow Dutch Colosseum teams. Fast feedback, help when you're stuck, and the focus you don't get at home.
Drop in for whichever day matches what you need. You don't have to come to all of them — but stacking a few in a row is how you'll polish and finalize your submission before the May 11 deadline.
Not building yet? Learn how to go from zero to a submission-ready MVP in a week using solana.new's toolkit. Perfect entry point if you're late to the hackathon.
No scheduled workshops — just the room, the wifi, lunch, and a bunch of people shipping next to you. Come to get real work done.
Pitch roast session — bring your deck, get torn apart constructively. Plus a workshop by Maven11 on what investors actually look for in a pitch deck.
A Colosseum hackathon judge will be on-site giving direct feedback on projects, videos, and pitches. Polish the MVP and bring your rough cuts — this is the best free signal you'll get before submitting.
Last day of Buildstation. Record the final cuts, double-check every link, and ship before the weekend. Deadline is May 11.
Selected projects pitch live to an audience of angel investors, VCs, ecosystem players, and fellow builders. This is also where selected teams compete for the Dutch side-track prizes.
Submit to Colosseum first — being selected for Demo Day requires a completed submission.
Everyone hits walls in a hackathon. Don't sit on them — here are the fastest ways to unblock yourself. Pick whichever one fits the moment.
Fastest path. The main Superteam NL Telegram is active — someone has probably hit the same thing. Post the question, get unblocked.
Join the Telegram →In Amsterdam May 4–8. Bring the thing that's blocking you and we'll work through it side by side. Feedback is way better in person.
RSVP on Luma →Online session every week. Best practices, structured guidance, live Q&A on MVPs and pitches. Check the calendar for the next one.
See the calendar →For one-on-one questions, intros, Legends.fun invite codes, or access to the invite-only Hackathon Builders group — DM us directly.
Traction is the tiebreaker. Colosseum winners have an audience, users, and momentum — not just working code.
Make an X account for your project this week. Then start shipping posts — what you're building, what broke, what you fixed, what a user said. Real, unpolished, frequent.
You don't ship alone. Join the people building alongside you — for feedback, intros, and a place to yell about bugs.
Make an account on Legends.fun. Entry is invite-only — join our Telegram or DM one of us for the code.
The main channel for Dutch builders on Solana. Announcements, IRL meetups, jobs, and general chatter.
A smaller, dedicated Telegram group just for Colosseum participants. Weekly office hours, feedback, and intros live here.
Weekly builder syncs, IRL meetups, and office hours. Follow us on X and subscribe to the Luma calendar so nothing slips.
Announcements, builder highlights, and opportunities — real time.
Every Superteam NL event in one place. Subscribe once, never miss a sync.
That's what Colosseum is looking for. Register, ship, post, repeat. We're here when you need us.
