CTF Arena
Capture The Flag contests: hack the practice targets, find the hidden flag and submit it for points.
Join solo or with a team.
Solve the challenge on its target.
Paste the flag, earn points, climb the board.
Showing 33 CTFS in this order: featured, live now, upcoming (soonest first), then finished. Ours and other organisers' CTFs are listed together.
CyberSecurity.pk Practice Range
Always-open practice challenges for learners. Not a timed competition — no prizes, no sponsors.
- Starts
- Ends
- Always open
- Where
- Online
- Entry
- Free
- Organiser
- CyberSecurity.pk
- Play
- Solo or team
- Challenges
- 17
HKCERT CTF 2026 (Qualifying Round)
HKCERT Capture The Flag 2026,” organised by the Hong Kong Computer Emergency Response Team Coordination Centre (HKCERT), the Hong Kong Productivity Council (HKPC) and the...
- Starts
- Ends
- Nov 7, 2026 15:00
- Duration
- 1d
- Where
- Online
- Entry
- Free
- Organiser
- Black Bauhinia HKCERT
- Prizes
- There are 2 rounds of the competition -> qualifying round an...
PINK+ CTF 2026
The first iteration of PINK+ CTF. Explore a variety of hand crafted challenges with a focus on steganography!
- Starts
- Ends
- Nov 9, 2026 17:00
- Duration
- 3d
- Where
- Online
- Entry
- Free
- Organiser
- PINK+
- Prizes
- 1st Place: 25$ + 6 Month Caido License per Member (Worth ~$5...
CSCTF 2026
"CSCTF 2026: Total Warfare" is an international, online, free jeopardy-style CTF focused on realistic cybersecurity scenarios inspired by critical infrastructure, defense...
- Starts
- Ends
- Nov 8, 2026 18:00
- Duration
- 2d
- Where
- Online
- Entry
- Free
- Organiser
- Mirachron
- Prizes
- TBD
SpookyCTF 2026
EVENT TIME HAS BEEN SHIFTED TO START AND END 2 HOURS AFTER TIME LISTED ABOVE
- Starts
- Ends
- Nov 7, 2026 22:00
- Duration
- 1d
- Where
- Online
- Entry
- Free
- Organiser
- NICC
- Prizes
- Open Division: (Online + In-person) 1st - 100$ 2nd - 50$...
BlackAlps CTF 2026
The BlackAlps CTF will be held at the end of the BlackAlps conference in Yverdon-les-Bains in Switzerland. It's a CTF for all level including from beginner up to advanced...
- Starts
- Ends
- Nov 7, 2026 03:30
- Duration
- 4h 15m
- Where
- Switzerland, Yverdon-les-Bains, Switzerland
- Entry
- Free
- Organiser
- BlackAlps
- Prizes
- We observe that the arrival of artificial intelligence (AI)...
Mimic
Mimic is an online Jeopardy-style CTF by Rare Byte Hub. Some challenges are exactly what they look like, and some aren't. Figure out which is which. There's something for...
- Starts
- Ends
- Nov 8, 2026 17:00
- Duration
- 1d
- Where
- Online
- Entry
- Free
- Organiser
- Rare Byte Hub
CSAW CTF Final Round 2026
CSAW CTF is one of the oldest and biggest CTFs. Designed as an entry-level, jeopardy-style CTF, this competition is for students who are trying to break into the field of...
- Starts
- Ends
- Nov 14, 2026 10:00
- Duration
- 1d 12h
- Where
- Online
- Entry
- Free
- Organiser
- NYUSEC
TVX CTF 2026
TVX CTF is a cybersecurity Capture The Flag competition organized by Tech Visions.
- Starts
- Ends
- Nov 14, 2026 01:00
- Duration
- 10h
- Where
- Online
- Entry
- Free
- Organiser
- Tech Visions
- Prizes
- TBD
Platypwn 2026
The Platypwn 2026 is an online Jeopardy CTF which offers easy challenges for beginners, but also medium and difficult challenges for advanced players.
- Starts
- Ends
- Nov 14, 2026 16:00
- Duration
- 18h
- Where
- Online
- Entry
- Free
- Organiser
- Platypwnies
- Prizes
- See https://platypwnies.de/events/platypwn
WolvCTF 2026
Our challenges range from beginner to hard in difficulty. Our esteemed members have worked tirelessly to bring new and stimulating CTF challenges to pose varying levels o...
- Starts
- Ends
- Nov 16, 2026 04:00
- Duration
- 2d
- Where
- Online
- Entry
- Free
- Organiser
- w01verines
- Prizes
- To be announced!
InIt CTF
InIt CTF is HII's (Hackers in India) beginner-focused Capture The Flag event, free and open to participants across India and internationally. 8 hours, Jeopardy-style, sol...
- Starts
- Ends
- Nov 15, 2026 04:30
- Duration
- 8h
- Where
- Online
- Entry
- Free
- Organiser
- Hackers_In_India
- Prizes
- Finalized with sponsors — includes .xyz domain codes and vou...
All challenges (17)
Every published challenge on the platform. Open one to read the brief; register to submit flags.