CTF Time

Name: Sudocrypt v16.0 (an Sudocrypt event.)
Date: Oct. 27, 2026, 3:30 a.m. — 28 Oct. 2026, 15:30 UTC  [add to calendar]
Format: Hack quest
On-line
Offical URL: https://sudocrypt.com/
Rating weight: 0.00
Event organizers: exunclan

Name: Hack.lu CTF 2026 (an Hack.lu CTF event.)
Date: Oct. 23, 2026, 6 p.m. — 25 Oct. 2026, 18:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://flu.xxx/
Rating weight: 94.74
Event organizers: FluxFingers

Name: cruXipher 2026 - ATMoS '26, BITS Hyderabad (an cruXipher event.)
Date: Oct. 23, 2026, 12:30 a.m. — 25 Oct. 2026, 00:30 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://cruxipher.crux-bphc.com/
Rating weight: 0
Event organizers: CRUx BPHC

Name: HITCON CTF 2026 (an HITCON CTF event.)
Date: Oct. 23, 2026, 2 p.m. — 25 Oct. 2026, 14:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf2026.hitcon.org/
Rating weight: 91.16
Event organizers: HITCON

Name: RSTCON 2026 CTF (an RSTCON CTF event.)
Date: Oct. 23, 2026, 5 p.m. — 25 Oct. 2026, 17:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.rstcon.org/
Rating weight: 25.00
Event organizers: RSTCON

Name: Cryovault 2026 Finals (an ISFCR PESU CTF event.)
Date: Oct. 24, 2026, 3:30 a.m. — 25 Oct. 2026, 06:30 UTC  [add to calendar]
Format: Jeopardy
On-site
Location: Bengaluru, India
Offical URL: https://isfcrpesu.ctfd.io/
Rating weight: 0.00
Event organizers: x6e.x65.x78.x75.x73

Name: H7CTF 2026 Finals (an H7CTF event.)
Date: Oct. 24, 2026, 6:30 a.m. — 25 Oct. 2026, 06:30 UTC  [add to calendar]
Format: Attack-Defense
On-site
Location: Chennai, Tamil Nadu
Offical URL: https://2026.h7tex.com/
Rating weight: 0
Event organizers: H7Tex

Name: BSides Peoria CTF 2026 (an BSides Peoria CTF event.)
Date: Oct. 24, 2026, 2:45 p.m. — 24 Oct. 2026, 20:45 UTC  [add to calendar]
Format: Jeopardy
On-site
Location: Peoria, Illinois, USA
Offical URL: https://bsidespeoriac.tf/
Rating weight: 0
Event organizers: BSides Peoria CTF Village

Name: CREST CTF 2.0 (an CREST CTF event.)
Date: Oct. 23, 2026, 5:30 a.m. — 23 Oct. 2026, 11:30 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://crest.ctf7.com/
Rating weight: 0
Event organizers: CREST

Name: SAS CTF 2026 Finals (an SAS CTF event.)
Date: Oct. 20, 2026, 3 a.m. — 20 Oct. 2026, 14:00 UTC  [add to calendar]
Format: Attack-Defense
On-site
Location: Indonesia, Bali
Offical URL: https://ctf.thesascon.com/
Rating weight: 49.50
Event organizers: Drovosec SAS CREW

Name: Securinets CTF Quals 2026 (an Securinets CTF event.)
Date: Oct. 17, 2026, 9 a.m. — 18 Oct. 2026, 21:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.securinets.tn/
Rating weight: 85.12
Event organizers: Securinets

Name: DEADFACE CTF 2026 (an DEADFACE CTF event.)
Date: Oct. 17, 2026, 2 p.m. — 19 Oct. 2026, 00:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.deadface.io/
Rating weight: 35.39
Event organizers: Cyber Hacktics

Name: SOLAR CTF 2026 (an SOLAR CTF event.)
Date: Oct. 17, 2026, 9 a.m. — 18 Oct. 2026, 09:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://solarctf.ru/
Rating weight: 0
Event organizers: SOLARCTF

Name: GaianSpace CTF 2026 (an GaianSpace CTF event.)
Date: Oct. 10, 2026, 9 p.m. — 14 Oct. 2026, 21:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://gaian.space/ctf
Rating weight: 25.00
Event organizers: GaianSpace

Name: FortID CTF 2026 (an TBTL CTF event.)
Date: Oct. 9, 2026, 6 p.m. — 11 Oct. 2026, 18:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.fortid.com/
Rating weight: 45.00
Event organizers: TBTL

Name: FooBar CTF 2026 (an FooBarCTF event.)
Date: Oct. 10, 2026, 6:30 a.m. — 11 Oct. 2026, 06:30 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://foobarctf.arhn.in/
Rating weight: 25.00
Event organizers: Alchemists of Kernel

Name: KubSTU CTF (an KubSTU CTF event.)
Date: Oct. 10, 2026, 7 a.m. — 11 Oct. 2026, 13:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://kubstu-ctf.ru/
Rating weight: 0.00
Event organizers: Capybaras

Name: kBxAc CTF 2026 (an kBxAc CTF event.)
Date: Oct. 9, 2026, 6:30 p.m. — 10 Oct. 2026, 18:30 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.kbxac.xyz/
Rating weight: 24.75
Event organizers: kBxAc

Name: Cryovault 2026 Quals (an ISFCR PESU CTF event.)
Date: Oct. 10, 2026, 4:30 a.m. — 11 Oct. 2026, 04:30 UTC  [add to calendar]
Format: Jeopardy
On-line
Location: Online
Offical URL: https://isfcrpesu.ctfd.io/
Rating weight: 25.00
Event organizers: x6e.x65.x78.x75.x73

Name: Narxoz CTF (an Narxoz CTF event.)
Date: Oct. 10, 2026, 10 a.m. — 10 Oct. 2026, 18:00 UTC  [add to calendar]
Format: Hack quest
On-site
Location: Almaty, Kazakhstan
Offical URL: https://narxploit.narxoz.kz/register.html
Rating weight: 0.00
Event organizers: NarXploit