CTF Time

Name: RCTF 2025 (an RCTF event.)
Date: Nov. 15, 2025, 2 a.m. — 17 Nov. 2025, 02:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://rctf2025.xctf.org.cn/
Rating weight: 41.75
Event organizers: ROIS

Name: TU Delft CTF 2025 (an TU Delft CTF event.)
Date: Nov. 15, 2025, 8 a.m. — 15 Nov. 2025, 16:00 UTC  [add to calendar]
Format: Jeopardy
On-site
Location: The Netherlands, Delft
Offical URL: https://ctf.ewi.tudelft.nl/?source=ctftime
Rating weight: 0.00
Event organizers: TU Delft CTF Team

Name: Platypwn 2025 (an Platypwn event.)
Date: Nov. 15, 2025, 9 a.m. — 16 Nov. 2025, 21:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://platypwnies.de/events/platypwn/
Rating weight: 33.29
Event organizers: Platypwnies

Name: Crate-CTF 2025 (an Crate-CTF event.)
Date: Nov. 15, 2025, 1 p.m. — 15 Nov. 2025, 21:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://foi.se/cratectf
Rating weight: 25.00
Event organizers: Crate-CTF

Name: PwnSec CTF 2025 (an PwnSec CTF event.)
Date: Nov. 15, 2025, 3 p.m. — 16 Nov. 2025, 15:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://pwnsec.ctf.ae/
Rating weight: 23.92
Event organizers: PwnSec

Name: M*CTF 2025 Quals (an M*CTF online event.)
Date: Nov. 16, 2025, 9 a.m. — 17 Nov. 2025, 09:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://mctf.mtuci.ru/
Rating weight: 45.64
Event organizers: BinaryBears

Name: PermCTF 2025 (an PermCTF event.)
Date: Oct. 11, 2025, 4:30 a.m. — 11 Oct. 2025, 14:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Location: Russia, Perm
Offical URL: https://permctf2025.pstu.ru/
Rating weight: 0.00
Event organizers: E-Toolz

Name: QUESTCON CTF 2025 (an QUESTCON event.)
Date: Oct. 11, 2025, 9 a.m. — 12 Oct. 2025, 09:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://discord.com/invite/JAavPpY95u
Rating weight: 26.50
Event organizers: OWASP_PCCOE-CORE

Name: GaianSpace CTF 2025 (an GaianSpace CTF event.)
Date: Oct. 13, 2025, 2 p.m. — 13 Oct. 2025, 14:30 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://gaian.space/ctf
Rating weight: 0.00
Event organizers: GaianSpace

Name: AltayCTF 2025 (an AltayCTF event.)
Date: Oct. 26, 2025, 10 a.m. — 26 Oct. 2025, 19:00 UTC  [add to calendar]
Format: Attack-Defense
On-site
Location: Barnaul
Offical URL: https://university.altayctf.ru/2025
Rating weight: 25.00
Event organizers: SharLike

Name: CipherHunt 2.0 (an CipherHunt 2.0 event.)
Date: Oct. 28, 2025, 9:30 a.m. — 29 Oct. 2025, 14:30 UTC  [add to calendar]
Format: Jeopardy
On-site
Location: Chandigarh, India
Offical URL: https://cipherhunt.xyz/
Rating weight: 0.00
Event organizers: CypherLock

Name: ZeroDay CTF 2025 (an Z3R0D4Y CTF event.)
Date: Oct. 30, 2025, 1 p.m. — 31 Oct. 2025, 13:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://register.zerologon.co.in/
Rating weight: 0
Event organizers: Z3r0_l0g0n

Name: Cryovault Quals (an ISFCR PESU CTF event.)
Date: Nov. 1, 2025, 6:30 a.m. — 02 Nov. 2025, 06:30 UTC  [add to calendar]
Format: Jeopardy
On-line
Location: India, Bengaluru, PES University RR campus
Offical URL: https://www.isfcr.pes.edu/
Rating weight: 0.00
Event organizers: x6e.x65.x78.x75.x73

Name: Russian CTF Cup 2025 Qualifier (an Russian CTF Cup event.)
Date: Nov. 2, 2025, 9 a.m. — 03 Nov. 2025, 09:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Location: Russia
Offical URL: https://ctfcup.ru/
Rating weight: 35.29
Event organizers: ctfcup

Name: CSCTF 2025 (an CSCTF event.)
Date: Nov. 7, 2025, noon — 09 Nov. 2025, 12:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://2025.chronos-security.ro/
Rating weight: 0.00
Event organizers: Mirachron

Name: Cryovault Finals (an ISFCR PESU CTF event.)
Date: Nov. 9, 2025, 8 a.m. — 09 Nov. 2025, 17:00 UTC  [add to calendar]
Format: Jeopardy
On-site
Location: India, Bengaluru, PES University RR campus
Offical URL: https://www.isfcr.pes.edu/
Rating weight: 0.00
Event organizers: x6e.x65.x78.x75.x73

Name: RootCipher (an ThunderCipher CTF event.)
Date: Nov. 9, 2025, 1 p.m. — 09 Nov. 2025, 18:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://forms.thundercipher.tech/form/949b7b32-ff49-400e-9194-a91a5deeb910
Rating weight: 0.00
Event organizers: ThunderCipher

Name: Ctrl+Space CTF Finals (an Ctrl+Space CTF event.)
Date: Nov. 4, 2025, 9 a.m. — 06 Nov. 2025, 11:00 UTC  [add to calendar]
Format: Jeopardy
On-site
Location: ESTEC, Netherlands
Offical URL: https://ctrl-space.gg/
Rating weight: 25.00
Event organizers: ESA

Name: Infobahn CTF 2025 (an Infobahn CTF event.)
Date: Nov. 7, 2025, 5 p.m. — 09 Nov. 2025, 17:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://2025.infobahnc.tf/
Rating weight: 25.00
Event organizers: Infobahn

Name: BuckeyeCTF 2025 (an BuckeyeCTF event.)
Date: Nov. 8, 2025, 1 a.m. — 10 Nov. 2025, 01:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.osucyber.club/
Rating weight: 50.00
Event organizers: Buckeye Bureau of BOF