Zero Days CTF 2023

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Zero Days CTF 2023

Zero Days Capture-The-Flag 2023 @Croke Park will be one of the largest in person CTFs on the planet. Don't miss out, grab your ticket today!

When and where

Date and time


Croke Park Jones' Road Dublin 3 Ireland

Map and directions

How to get there

Refund Policy

Contact the organiser to request a refund.

About this event

  • 8 hours
  • Mobile eTicket

Happening April 1st @ Croke Park

Back for the 7th year of our Inter-colleges Capture-The-Flag event, This will be one of the largest in-person CTFs on the planet. All previous events have sold out so get your team in and spread the word.

Entries are open to teams of 4 and includes lunch, hacking challenges and games, all followed by our ZeroDays After-Party (from 6pm) 

We aim to crown the top Irish college security team, but as always we have a separate 'Open' category for non-college and industry teams, so everyone is welcome to take part.

Check out our website and social medias accounts for the latest details (

While we aim to challenge even the best teams in the country, don't worry if you've never taken part in a CTF before, this event is perfect to get you started and will be newbie-friendly! If you like solving challenges, puzzles and know how to switch on a laptop you'll be fine.

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