Location: Online

Description: Join us for the second annual CTF@CIT! Running from April 25th @ 5PM EDT until April 27th @ 3PM EDT Join our new Discord for updates: https://discord.gg/s6gXMAc95P Challenges from topics such as forensics, steganography, reverse, OSINT, and misc. Over $35,000 in prizes available for students! Sponsored by: Hex-Rays and OffSec with more to come!

Format: Jeopardy

Prizes: Sponsored by Hex-Rays and OffSec, giving away over $35,000 worth of prizes! Prize breakdown coming soon.

Restrictions: Open

Register 👉 here

Location: Online

Description: UMDCTF 2025 is the ninth annual competition hosted by the cybersecurity club at the University of Maryland, College Park! The CTF will run for a period of 48 hours and has two player divisions: open and academic. Challenges will feature all the categories you know and love: pwn, rev, web, crypto, forensics, and most importantly, misc. Join our Discord! https://discord.gg/n65kg6KuYH Infra sponsored by goo.gle/ctfsponsorship

Format: Jeopardy

Prizes: TBA

Restrictions: Open

Register 👉 here

Location: Online

Description: BSidesSF 2025 CTF. Most challenges are available online, but some may require an on-site presence. At least one team member must be present onsite to be eligible for prizes.

Format: Jeopardy

Prizes: None

Restrictions: Open

Register 👉 here

Location: Online

Description: "2025 HackTheon Sejong" International University Students’ Cyber Security Competition ❍ Eligibility: Undergraduate students from within and outside the country (Graduate students are not eligible) ※ Teams of up to 4 members allowed ❍ Categories: Advanced and Beginner ❍ Application Period: March 17 to April 22, 2025 ※ More details to be announced on the website(https://hacktheon.org) in March ❍ Format: Jeopardy-style problem-solving competition ❍ Schedule(KST) - Preliminaries : April 26, 2025 (Sat), 9:00 – 18:00, Online ※ Top 40 teams (20 Advanced, 20 Beginner) will progress to the finals - Finals : Jul 10, 2025 (Wed), 10:00 – 18:00, In-person at the Sejong Convention Center(66, Dasom 3-ro, Sejong City, Republic of korea) ※ Accommodations are provided for finalists. ❍ Awards Ceremony : Jul 11, 2025 (Thu), 11:00 a.m. – 12:00 p.m.(KST) - Advanced Category Prizes (total of KRW 32 million): Grand Prize (1 team) KRW 10 million, Excellence (2 teams) KRW 5 million each, Honorable Mention (4 teams) KRW 3 million each - Beginner Category Prizes (total of KRW 6 million): Grand Prize (1 team) KRW 2 million, Excellence (2 teams) KRW 1 million each, Honorable Mention (4 teams) KRW 500,000 each

Format: Jeopardy

Prizes: ○ Advanced Category Prizes (total of KRW 32 million): Grand Prize (1 team) KRW 10 million, Excellence (2 teams) KRW 5 million each, Honorable Mention (4 teams) KRW 3 million each ○ Beginner Category Prizes (total of KRW 6 million): Grand Prize (1 team) KRW 2 million, Excellence (2 teams) KRW 1 million each, Honorable Mention (4 teams) KRW 500,000 each

Restrictions: Open

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Location: Online

Description: Midnight Sun CTF is HackingForSoju's annual CTF event open to players around the world. This qualifier event will allow 10 teams qualify for the on-site event in Stockholm Sweden in June. https://discord.gg/xMuRxub4CX

Format: Jeopardy

Prizes: Prizes include flights, hotels, swag etc. for the on-site finals as well as tickets to the conference and access to the after party.

Restrictions: Open

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Location: Online

Description: POSTPONED: We've moved this round to May 17 (Sat). AlpacaHack is a new CTF platform for individual competitions. AlpacaHack Round 11 (Web) is the 11th CTF hosted by the AlpacaHack team, featuring 4 Web challenges. The challenges are designed with a wide range of difficulties, making them enjoyable for participants of all levels, including beginners. They are created by Ark.

Format: Jeopardy

Prizes: None

Restrictions: Individual

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Location: Astana, Kazakhstan

Description: 29-30 April, 2025 Off-line Duration: 14 hours Format: Jeopardy Categories: Malware, Forensics, Steganography, Crypto, OSINT, Web, and more ! Difficulty: Easy - Medium, and some hard ones Contacts: A.Imanberdiyev@astanait.edu.kzZuleikha.Syzdykova@astanait.edu.kz Please note that the teams are limited to 5 members!

Format: Jeopardy

Prizes: 1st place: ~3 800.00 USD 2nd place: ~2800.00 USD 3rd place: ~1900.00 USD and some prizes!

Restrictions: Open

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Location: Online

Description: Team bi0s invites you to our prestigious bi0sCTF 2025, a premier hacking event designed for hackers of all generations. We are dedicated to crafting challenges that incorporate the latest vulnerabilities, responsibly pushing the boundaries of innovation to ensure a delightful and enriching experience for all participants. Stay tuned for official updates by following us on https://twitter.com/teambi0s.

Format: Jeopardy

Prizes: None

Restrictions: Open

Register 👉 here

Location: Online

Description: UniVsThreats CTF is an engaging cybersecurity competition organized by the West University of Timișoara (UVT), now proudly entering its second year. Tailored specifically for university students and high schoolers passionate about cybersecurity, the event offers the opportunity to sharpen your cyber-security skills in a competitive atmosphere. This year's competition will be both on-site at UVT Timișoara and online, making it accessible to a wider audience. So grab your friends, and join to be part of the growing UVT-CTF community!

Format: Jeopardy

Prizes: ++ TBD ++ (including Invites to various FMI/UVT courses/events and Cash)

Restrictions: Open

Register 👉 here

Location: Online

Description: To celebrate our birthday we are hosting a DevSecOps CTF! Now in it's third year!!!! You can expect awesome challenges with a DevSecOps theme! Abusing cloud services, finding secrets, patching vulnerable applications, cracking JWTs and ansible vaults! We will have prizes for UK teams only but anyone can compete for fun! There will be challenges for all levels, with around 40 challenges planned in total. Some will require static flags, but others will require you to fix or protect something however you think best!

Format: Jeopardy

Prizes: Top three UK Teams! > First place ? £100 Amazon Voucher ? Punk SWAG (stickers and a commemorative badge) > Second place ? £50 Amazon Voucher ? Punk SWAG (stickers and a commemorative badge) > Third place ? Punk SWAG (stickers and a commemorative badge)

Restrictions: Open

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Location: EPFL Lausanne

Description: The 10 qualified teams from LakeCTF Quals 24-25 (academic bracket) are invited to play the finals at EPFL.

Format: Jeopardy

Prizes: TBD

Restrictions: Open

Register 👉 here

Location: Online

Description: On-site and online editions are held simultanously, on the same range of challenges so online participation is also possible. Prizes only for on-site participants. Discord server: https://discord.gg/5FFHTKt7ak Infra sponsored by goo.gle/ctfsponsorship

Format: Jeopardy

Prizes: Prizes only for on-site participants.

Restrictions: Open

Register 👉 here

Location: Online

Description: 48-hour CTF hosted by the Oregon State University Security Club Sponsored by AWS, Vector 35, & DC541 Categories: * Pwn * Rev * Web * Crypto * Misc

Format: Jeopardy

Prizes: Open bracket prizes include: 1st place: 3 Binary Ninja licenses 2nd place: 2 Binary Ninja licenses 3rd place: 1 Binary Ninja license In-person bracket prizes: TBA

Restrictions: Open

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Location: Online

Description: A 2025 justCTF teaser is comming! Details & sponsors TBA!

Format: Jeopardy

Prizes: Details TBA, but travel and accommodation for top teams for justCTF 2025 Finals in Poland + additional teaser prizes

Restrictions: Open

Register 👉 here

Location: Online

Description: BYUCTF will be held for its fourth year! It is 24 hours long with beginner- and intermediate-level challenges in a variety of categories, including web, rev, pwn, OSINT, crypto, forensics, and misc. There is no team size limit.

Format: Jeopardy

Prizes: None

Restrictions: Open

Register 👉 here

Location: Netherlands, Eindhoven

Description: A full-day CTF event on TU/e campus, sponsored by WhiteHats. Join our Discord and stay tuned for more information: https://discord.gg/fXHCe9zsHC

Format: Jeopardy

Prizes: t.b.d.

Restrictions: Open

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Location: Online

Description: SAS CTF is an international competition for cybersecurity experts, held as a part of the Security Analyst Summit conference. The competition consists of an online Jeopardy qualification stage and on-site Attack-Defense finals. The qualification stage will begin on May 17 at 12:00 UTC and will last for 24 hours. Top 8 teams from the qualification stage will compete for a share of the $18.000 prize pot at SAS 2025 in Khao Lak, Thailand on 25-28 October, 2025

Format: Jeopardy

Prizes: Top 8 teams will qualify for SAS CTF 2025 Finals. Organizers will cover (for up to 5 people per team): - 1st place: flights, accomodation costs and CTF conference passes - 2nd and 3rd places: accomodation costs and CTF conference passes - Rest of the teams: CTF conference passes

Restrictions: Open

Register 👉 here