A CTF you can play
kBxAc CTF is a free, online, jeopardy style capture the flag competition. Every category is a world and every challenge sits along a platformer level: run to it, solve it, submit the flag.
How it runs
-
Jeopardy, online
One round, 24 hoursSolve challenges and submit flags to score points.
Key dates
-
1 Oct 2026, 00:00 IST
Registration open
Free. Create your account any time before the end.
-
10 Oct 2026, 00:00 IST
CTF starts
The challenges open.
-
11 Oct 2026, 00:00 IST
CTF ends
Flag submission closes.
Questions
I am new to CTFs. Can I play?
Absolutely. There are challenges for every level.
When does the CTF start?
10 October 2026 at 00:00 IST. It ends 24 hours later, on 11 October at 00:00 IST. The site shows both times in your own time zone.
What is the format?
An online jeopardy CTF: one round, 24 hours.
How much does it cost?
Nothing. It is absolutely free.
How can I contact support if I face any issues?
You can reach out to our team directly by emailing admin@kbxac.xyz.
Backed by
Gold
Contact Us
Facing any issues with registration, account access, or the competition? Reach out to our organizing team directly.