CTF Time

Name: Google Capture The Flag 2025 (an Google Capture The Flag event.)
Date: June 27, 2025, 6 p.m. — 29 June 2025, 18:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://g.co/ctf
Rating weight: 97.17
Event organizers: Google CTF

Name: Involuntary CTF 2025 (an involuntaryCTF event.)
Date: June 27, 2025, 6 p.m. — 29 June 2025, 18:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: http://involuntaryctf.net/
Rating weight: 0
Event organizers: inv0luntary

Name: Wicked6: Attack & Defense Tournament 2025 (an PlayCyber event.)
Date: March 30, 2025, 1 p.m. — 30 March 2025, 20:00 UTC  [add to calendar]
Format: Attack-Defense
On-line
Offical URL: https://www.wicked6.com/tournament
Rating weight: 0.00
Event organizers: Play Cyber

Name: UNbreakable International 2024 - Team Phase (an UNbreakable International event.)
Date: April 11, 2025, 10 a.m. — 13 April 2025, 10:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://unr25t-international.cyber-edu.co/
Rating weight: 24.82
Event organizers: bitsentinel

Name: Hack'In 0x04 (an Hack'In event.)
Date: June 14, 2025, 3 p.m. — 15 June 2025, 06:00 UTC  [add to calendar]
Format: Jeopardy
On-site
Location: 2 Rue de la Fourane 13090 Aix-en-Provence, France
Offical URL: https://hackin.fr/
Rating weight: 0.00
Event organizers: Hacky'Nov

Name: MetaCTF June 2025 Flash CTF (an MetaCTF event.)
Date: June 26, 2025, 9 p.m. — 26 June 2025, 23:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Location: Online
Offical URL: https://mctf.io/jun2025
Rating weight: 0
Event organizers: MetaCTF

Name: BSides Mumbai CTF 2025 (an BSides Mumbai event.)
Date: June 28, 2025, 10 a.m. — 29 June 2025, 10:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ctf.bsidesmumbai.in/
Rating weight: 0.00
Event organizers: DarkArmy

Name: AppSec-IL CTF 2025 (an OWASL-IL CTF event.)
Date: June 2, 2025, 5 p.m. — 04 June 2025, 17:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://owasp.org/www-chapter-israel/
Rating weight: 0.00
Event organizers: OWASP-IL

Name: BCACTF 6.0 (an BCACTF event.)
Date: June 21, 2025, 1:30 a.m. — 24 June 2025, 01:30 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://www.bcactf.com/
Rating weight: 62.97
Event organizers: BCACTF

Name: cornCTF 2025 (an cornCTF event.)
Date: June 21, 2025, noon — 22 June 2025, 12:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://cornc.tf/
Rating weight: 23.12
Event organizers: pwnlentoni

Name: IERAE CTF 2025 - GMO Cybersecurity Contest (an IERAE CTF event.)
Date: June 21, 2025, 6 a.m. — 22 June 2025, 06:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://gmo-cybersecurity.com/event/ieraectf25/
Rating weight: 25.00
Event organizers: ierae

Name: MaltaCTF 2025 Quals (an MaltaCTF event.)
Date: June 21, 2025, 7 a.m. — 22 June 2025, 07:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://quals.2025.ctf.mt/
Rating weight: 24.95
Event organizers: if this doesn't work we'll get more for next year

Name: GPN CTF 2025 (an GPN CTF event.)
Date: June 20, 2025, 10 a.m. — 21 June 2025, 22:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://gpn23.ctf.kitctf.de/
Rating weight: 46.00
Event organizers: KITCTF

Name: Season V, US Cyber Open Beginner's Game Room CTF (an PlayCyber event.)
Date: June 6, 2025, 9:30 p.m. — 19 June 2025, 23:59 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://www.uscybergames.com/
Rating weight: 0
Event organizers: Play Cyber

Name: Season V, US Cyber Open Competitive CTF (an PlayCyber event.)
Date: June 9, 2025, 8 p.m. — 19 June 2025, 23:59 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://www.uscybergames.com/
Rating weight: 0
Event organizers: Play Cyber

Name: DHM 2025 (an DHM event.)
Date: June 18, 2025, 8 a.m. — 19 June 2025, 17:00 UTC  [add to calendar]
Format: Jeopardy
On-site
Location: Germany, Heilbronn
Offical URL: https://hacking-meisterschaft.de/
Rating weight: 25.00
Event organizers: NFITS

Name: SSMCTF 2025 (an SSMCTF event.)
Date: June 14, 2025, 9 a.m. — 15 June 2025, 21:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://ssmct.org/ctf
Rating weight: 0.00
Event organizers: D0wn13s

Name: Cyber Lumen x GWK #CTF1 (an Cyber Lumen #CTF event.)
Date: June 16, 2025, 11:49 a.m. — 16 June 2025, 11:49 UTC  [add to calendar]
Format: Jeopardy
On-line
Location: South Korea, Seoul
Offical URL: https://www.fkca.eu/cyber-lumen-global-women-in-korea-ctf1/
Rating weight: 0
Event organizers: Cyber Lumen

Name: smileyCTF 2025 (an smileyCTF event.)
Date: June 14, 2025, midnight — 16 June 2025, 00:00 UTC  [add to calendar]
Format: Jeopardy
On-line
Offical URL: https://play.ctf.gg/
Rating weight: 48.61
Event organizers: .;,;.

Name: CyberSci Nationals 2025 (an CyberSci event.)
Date: June 14, 2025, 1 p.m. — 15 June 2025, 23:00 UTC  [add to calendar]
Format: Jeopardy
On-site
Location: Ottawa, Canada
Offical URL: https://cybersecuritychallenge.ca/
Rating weight: 0
Event organizers: 0xD13A