FlareOnOS v12.1 Current Champion: TheBadGod

The Flare-On Challenge is the FLARE team's annual Capture-the-Flag (CTF) contest. It is a single-player series of Reverse Engineering puzzles that runs for every fall. #flareon12 is launching Sept. 26th 2025 at 8pm EST.

Check out the scoreboard at flare-on11.ctfd.io

Prior Year's Challenges:

Flare-On 11 (2024) Flare-On 10 (2023) Flare-On 9 (2022) Flare-On 8 (2021) Flare-On 7 (2020) Flare-On 6 (2019) Flare-On 5 (2018) Flare-On 4 (2017) Flare-On 3 (2016) Flare-On 2 (2015) Flare-On 1 (2014)