$ ctf42

🇨🇳 RCTF

by ROIS 🇨🇳 China flag format RCTF{...}

RCTF 2025 is a Jeopardy-style Online Capture The Flag Competition presented by ROIS(Researcher Of Information Security). The contest is opened to all participants around the world. Teams can compete from any location. No restriction on the number of participants of any team. The Champion Team of RCTF 2025 will be invited to The Finals of the 10th Edition of XCTF(the location/date subject to change, qualified teams will be informed when the Finals location/date is confirmed). Other teams can also get the cumulative points to compete for other slots to The Finals of the 10th Edition of XCTF.

Platform: https://rctf2025.xctf.org.cn/ discord: https://discord.gg/hq4m3KrVfG QQ Group: 935041519

Archived challenges by category

Editions

EditionWeight WebPwnReverseCryptoMisc Total
2025 – 56675 29
2022 – 3967· 25
2021 – 5852· 20
2020 – ····6 6
2019 – ····5 5
2018 – ····6 6