
Project Sekai CTF
@ProjectSEKAIctf
Project SEKAI, yet another CTF team. Recruiting: http://shorturl.at/JNU78 Sponsorship & Partnership: [email protected]
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We’re excited to share the new Happi coat swag we received from @osec_io! OtterSec has been a generous sponsor for SekaiCTF (2022–2025) and several onsite finals including SECCON CTF and DEFCON — we’re truly grateful.

DefCamp CTF 2025 Quals are LIVE! There is still time for you to join the fight - register now 👉 dctf25-quals.cyber-edu.co Good luck and see you on the leaderboard!
Backing the fight, backing the #hackers. We’re proud to support #DefCamp Capture the Flag (D-CTF) 2025 — one of the biggest cybersecurity battlegrounds in Central Eastern Europe! 🗓️Qualifications Phase: Sept 12, 1:00 PM - Sept 14, 1:00 PM (online on CyberEDU) Expect challenges…

🎉 Last weekend, we teamed up with @ProjectSEKAIctf as P1G SEKAI and secured 2nd place at corCTF 2025! 🙏 Huge thanks to the @cor_ctf team for their excellent organization and high-quality challenges

corCTF 2025 has ended! Congrats to the top 5: 1. @FlatNetworkOrg 2. @r3kapig @ProjectSEKAIctf 3. The Amazing Digital Orange 4. @TheRomanXpl0it 5. STM Thank you to all of our players and sponsors! @osec_io, Research Innovations, @ret2systems, @trailofbits, @vector35, @googlecloud

Two of the challenges got solved after the CTF. Congratulations to them for winning the bounties!

Four bounties remain unclaimed. We are extending these three for one more week — the first team to open a ticket with the flag wins: - 6◆ pwn/WIC: $200 for the🩸First Solve - 6◆ crypto/unfairy-ring++: $200 for the🩸First Solve - 5◆ crypto/unfairy-ring: $100 for the🩸First…

This year we AK all blockchain challenges in SekaiCTF once again, its very nice to work on these challenges with my teammate ranwen🥰 (but we only got two small bounties🙃) Thanks to the organizers for preparing such diverse and interesting challenges @ProjectSEKAIctf

This weekend we played @CTFZone Quals during organizing SekaiCTF, and got 5th place into the Finals! Congrats to @r3kapig for winning.

19 hours left! We have released the second wave, and bounties are added for unsolved challenges. I created a pwn challenge 'WIC' and it is still unsolved. Claim 200$ bounty for solving the challenge. play ctf.sekai.team #SekaiCTF
Four bounties remain unclaimed. We are extending these three for one more week — the first team to open a ticket with the flag wins: - 6◆ pwn/WIC: $200 for the🩸First Solve - 6◆ crypto/unfairy-ring++: $200 for the🩸First Solve - 5◆ crypto/unfairy-ring: $100 for the🩸First…

24 hours left! We have released the second wave, and bounties are added for unsolved challenges. Who can claim US$3,339 and qualify for XCTF/MaltaCTF Finals?


proud to be sponsoring SekaiCTF at Zellic! i love the rhythm game ui :D
Something new is brewing in the ring. A fresh 0-day awaits. @dicegangctf — see you at SekaiCTF 2025. Register now: ctf.sekai.team #SekaiCTF #Teaser

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