Sydney · Jul 10 – 12, 2026
Join like-minded teens in Sydney, Australia for 48 hours of coding! Build and ship something real over 48 hours - we'll cover food and travel!
Sign up! →A Hack Club flagship hackathon, in Sydney, Australia. Code for 35 hours and come to Australia for 48 hours of learning, teamwork, and fun!
About the event
A weekend in the deep end.
Build for 35 hours, get a free trip to Sydney. Horizons Crux is a fully-funded 3-day hackathon run by Hack Club, a 501(c)(3) nonprofit.
What is a hackathon.
A hackathon is a weekend-long event where you build something from scratch with a group of strangers who quickly become friends.
At Horizons Crux, you'll have around 48 hours to make a project, then show everyone what you made. You'll leave with a project anyone can demo, and you get to tell people that you built it yourself.
Who can attend.
Any high school student (aged 13-18) who's logged 35 hours building projects on Horizons.
Crux is open to students of all experience levels! We'll have workshops to teach beginners how to make games, websites, and more!
What you can get.
Your food and accommodation are fully covered by Hack Club, a 501(c)(3) nonprofit.
You'll leave with a project you're proud of, a network of teenage builders from across the globe, and the experience of shipping something real under the pressure of the clock.
How to qualify
Five steps to the Cross.
Spend 35 hours building real projects on Hack Club. No GPA, no essays, no résumé. The work is the application.
Join Hack Club
Visit horizons.hackclub.com and create an account. It's free and open to all high school students.
Start Building
Create projects and upload them to Horizons. Anything counts: web apps, games, hardware.
Track Your Hours
Your building time is automatically tracked with Hackatime as you ship projects on Horizons.
Hit 35 Hours
Once you accumulate 35 hours of building, you're eligible to attend Horizons Crux.
Attend
Spend your hours for a ticket at horizons.hackclub.com before July 10, 2026. After that you are all set to attend!
Schedule
It's going to be awesome.
Outline of how the event will go! Changes might be made closer to the event.
What's covered
What's that?
Free food, merch, and travel?!
Free food, merch, and you can work for flight stipends!
- All meals & snacks — Free meals and unlimited snacks for the event!
- Flight stipends — At a rate of $8.50USD/hr
- Local transport — Opal fares and fuel costs covered!
- Event swag — Free Hoodies, Hats, PCB Lanyards, Everything you can think of.
Previous events
We've done this before.
Sydney · February 2026
Sydney's largest high school hackathon yet. 200+ students from across Sydney came together for 20 hours of building, workshops, and fun.
campfire.hackclub.com/sydney→Sydney · September 2025
Daydream brought together the next generation of game devs for a weekend of wild ideas, late nights, and projects nobody expected to ship.
daydream.hackclub.com/sydney→Vienna · January 2026
A murder-mystery hackathon in Vienna, Austria. Spend 50 hours building personal projects, then fly out to solve the mystery and ship something unforgettable.
midnight.hackclub.com→San Fransisco · July 2025
A hardware hackathon for high school builders. Solder, prototype, and ship real physical projects alongside 150 other hardware hackers.
undercity.hackclub.com→Auckland · May 2026
KiwiHacks '26 is New Zealand's biggest hackathon run by high schoolers, for high schoolers, where 100+ students enjoyed a weekend of building, workshops, and mentorship.
kiwihacks.org→
Sponsors
The folks who make it free.
Hack Club is a 501(c)(3) nonprofit. Every dollar raised goes directly into stipends, accommodation, food, and swag for the hackers in the room.
Put your name on the weekend.
Title sponsorship, hardware partnerships, travel underwriting — let's talk. Every contribution is tax-deductible in the US and helps support the next generation of builders.
Our Sponsors
