KalmarCTF

Welcome to KalmarCTF 2026, brought to you by Kalmarunionen!

The competition will take place from Friday, 27 March 2026, 17:00 UTC to Sunday, 29 March 2026, 17:00 UTC. ⚠️ Note: Europe switches from Central European Time (CET, UTC+1) to Central European Summer Time (CEST, UTC+2) on Sunday, 29 March 2026. This means the start time is 18:00 CET, and the end time is 19:00 CEST local time.

Expect sweet challenges which are both original and challenging.