About the event
A weekend in the deep end.
Three steps from your bedroom to the Southern Cross. Horizons Crux is a 3-day hackathon in Sydney, fully funded by Hack Club, a 501(c)(3) nonprofit.
- 01
Build amazing projects.
Log 35 hours in Hack Club building whatever you desire. A game, a website, a synth, a robot... every hour is another step closer towards the Horizons.
- 02
Find your people.
Connect with likeminded individuals of all skill levels, and the same drive as you. Meet fellow peers, published developers, aspiring creators, let your passion guide you.
- 03
Fly out to Sydney.
Once you've cleared 35 hours, you're in. We fly you out to Sydney, Australia for a weekend under the Southern Cross. Bring a laptop.
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 under one roof with 150 other hardware hackers.
undercity.hackclub.com→Auckland · May 2026
KiwiHacks is New Zealand's biggest hackathon run by high schoolers, for high schoolers, bringing together 100+ student innovators together for a weekend of building, workshops, and mentorship.
kiwihacks.org→
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 hackclub.com and create an account. It's free and open to all high school students.
Start Building
Create projects and upload them to Hack Club. Anything counts: web, games, hardware, art.
Track Your Hours
Your building time is automatically tracked as you ship projects on Hack Club.
Hit 35 Hours
Once you accumulate 35 hours of building, you're eligible to attend Horizons Crux.
Apply
Spend your hours for a ticket at horizons.hackclub.com before June 30, 2026.
Schedule
Three days, plotted on the chart.
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 and merch, plus, 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 Horizons Crux merch!
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.