Sat, 13 June 2026, 01:00 UTC — Mon, 15 June 2026, 01:00 UTC 

On-line

An Anti-Slop CTF event.

Format: Jeopardy Jeopardy

Official URL: https://ctf.antislopp.i.ng/

You will be able to login this event with CTFtime.

Future weight: to be determined

Rating weight: 0.00 

Event organizers 

This CTF is designed around anti-AI and unsloppable challenges that resist agent automation and low-effort guessing. The problems aim to reward careful reasoning, persistence, and creative human intuition rather than generic agentic tooling output. Some challenges may be difficult, but they are intended to feel interesting, fair, and satisfying to work through. Expect puzzles that require understanding the underlying ideas, not just prompting harder.

Challenges might still be sloppable, but the spirit is not.

Discord: https://discord.gg/ymTkSUdB9e

Categories: Misc, Reverse, Pwn, Web, Crypto, OSINT, Blockchain, and King-of-the-Hill.

Sign in and register a team to mark your interest.

Interested teams

33 teams total

Team
0.X.Mehr
1N3S
3v3ry0n3 h4s m4d3 mis74k3s
Anonymous ghost
C0nd0r
CID
Code Blooded Quad
Cybity
Dacia Team
Darkreunion
Destroyer-official
Ç_Ç CyberDimension
FriteSec
fsociety.0
H0X4BUG
Hack@Sec
I Will Eat Every Chicken In This Room
M@rio
The Bus Factor is 1:
MindCrafters
MODI_GANGSTA
Neutron
Not Nerd (NN)
on3man_army
piconta
Pr0gressive_B1ts
Nattt
secF4n
Shadow0verFlow
stickmen
Street_Hackers
trhung
VulneraX
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