CTF Time

Name: LINE CTF 2025 (an LINE CTF event.)
Date: Oct. 18, 2025, midnight — 18 Oct. 2025, 00:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://linectf.me/
Rating weight: 66.50
Event organizers: LINE CTF

Name: HITCON Cyber Range 2025 Final (an HITCON Cyber Range event.)
Date: Oct. 17, 2025, 1 a.m. — 17 Oct. 2025, 10:00 UTC  [add to calendar]
Format: Jeopardy
On-site
Location: Taipei, Taiwan
Offical URL: https://hitcon.kktix.cc/events/hitcon-cyberrange-2025
Rating weight: 0.00
Event organizers: HITCON

Name: DEF CON CTF 2025 (an DEF CON CTF event.)
Date: Aug. 8, 2025, 4 p.m. — 10 Aug. 2025, 19:00 UTC  [add to calendar]
Format: Attack-Defense
On-site
Location: United States, Las Vegas
Offical URL: https://nautilus.institute/
Rating weight: 100.00
Event organizers: Nautilus Institute

Name: POC CTF Qualification 2025 (an Power Of Community - POC CTF event.)
Date: Oct. 12, 2025, 10 a.m. — 13 Oct. 2025, 10:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://powerofcommunity.net/2025/ctf.html
Rating weight: 0
Event organizers: SAFCSP

Name: EnigmaXplore 3.0 (an EnigmaXplore event.)
Date: Oct. 10, 2025, 12:30 p.m. — 11 Oct. 2025, 00:30 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://enigmaxplore.ctfd.io/
Rating weight: 24.58
Event organizers: Crispr_iiitn

Name: Standoff Cyberbattle 16 (an Standoff Cyberbattle event.)
Date: Oct. 6, 2025, 6 a.m. — 08 Oct. 2025, 15:00 UTC  [add to calendar]
Format: Attack-Defense
On-line
Offical URL: https://16.standoff365.com/en/
Rating weight: 0.00
Event organizers: STANDOFF 365

Name: jailCTF 2025 (an jailCTF event.)
Date: Oct. 3, 2025, 8 p.m. — 06 Oct. 2025, 20:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.pyjail.club/
Rating weight: 24.88
Event organizers: jailctf

Name: openECSC 2025 (an x3ctf event.)
Date: Sept. 29, 2025, 6 p.m. — 05 Oct. 2025, 23:59 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://openec.sc/
Rating weight: 0
Event organizers: x3CTF

Name: Securinets CTF Quals 2025 (an Securinets CTF event.)
Date: Oct. 4, 2025, 1 p.m. — 05 Oct. 2025, 21:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://quals.securinets.tn/
Rating weight: 70.50
Event organizers: Securinets

Name: COMPFEST CTF 2025 (an COMPFEST CTF event.)
Date: Oct. 4, 2025, 2 a.m. — 05 Oct. 2025, 02:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://compfest.id/
Rating weight: 64.00
Event organizers: CSUI

Name: CRAC CTF - Cloud and IAM CTF (an CRAC CTFs event.)
Date: Oct. 4, 2025, 8:30 a.m. — 04 Oct. 2025, 11:30 UTC  [add to calendar]
Format: Jeopardy
On-line
Location: Delhi, India
Offical URL: https://defhawk.com/battleground/raid/cloud-and-iam-ctf
Rating weight: 0.00
Event organizers: h4wk

Name: WMCTF2025 (an WMCTF event.)
Date: Sept. 20, 2025, 2 a.m. — 21 Sept. 2025, 02:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://wmctf.wm-team.cn/
Rating weight: 80.00
Event organizers: W&M

Name: ATLA Opening Date CTF (an ATLA Opening Date CTF event.)
Date: Sept. 20, 2025, 5 a.m. — 20 Sept. 2025, 13:00 UTC  [add to calendar]
Format: Jeopardy
On-site
Location: Kyrgyzstan, Bishkek
Offical URL: https://ctf.atlabyte.com/
Rating weight: 0
Event organizers: ATLA CTF

Name: Holmes CTF 2025 (an Hack The Box CTF event.)
Date: Sept. 22, 2025, 1 p.m. — 26 Sept. 2025, 19:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.hackthebox.com/event/details/holmes-ctf-2025-2536
Rating weight: 24.00
Event organizers: Hack The Box

Name: InfiniteCTF Qualifiers (an InfiniteCTF event.)
Date: Sept. 27, 2025, 7 p.m. — 28 Sept. 2025, 03:00 UTC  [add to calendar]
Format: Attack-Defense
On-line
Offical URL: https://register.redteamassociation.com/
Rating weight: 0.00
Event organizers: Red Team Association

Name: SunshineCTF 2025 (an SunshineCTF event.)
Date: Sept. 27, 2025, 2 p.m. — 29 Sept. 2025, 14:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://sunshinectf.org/
Rating weight: 51.65
Event organizers: Knightsec

Name: FAUST CTF 2025 (an FAUST CTF event.)
Date: Sept. 27, 2025, noon — 27 Sept. 2025, 21:00 UTC  [add to calendar]
Format: Attack-Defense
On-line
Offical URL: https://2025.faustctf.net/
Rating weight: 92.50
Event organizers: FAUST

Name: DFIR Labs Digital Forensics Challenge by The DFIR Report (an DFIR Labs CTF event.)
Date: Sept. 27, 2025, 4:30 p.m. — 27 Sept. 2025, 20:30 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://dfirlabs.thedfirreport.com/dfirchallenge
Rating weight: 0
Event organizers: The DFIR Report

Name: Iran Tech Olympics CTF 2025 (an Iran Tech Olympics CTF event.)
Date: Sept. 26, 2025, 1 p.m. — 27 Sept. 2025, 13:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.olympics.tech/
Rating weight: 25.00
Event organizers: ASIS

Name: HackornCTF 2025 Quals (an Hackorn event.)
Date: Sept. 25, 2025, midnight — 25 Sept. 2025, 23:59 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.secpen.org/
Rating weight: 0
Event organizers: Hackorn