Challenges

Category Web Pwn Reverse Crypto Forensics Misc OSINT Stego Blockchain Hardware Mobile

Difficulty Beginner Easy Medium Hard Insane

CTFtime weight

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Higher weight ≈ harder, more prestigious event.

Year

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CTF

Country

Must have Source / Docker Writeup

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Challenge	CTF	Weight	Category	Has
Flag_from_Temu	WorldWide 2025	24.48	OSINT	files
Lost_1	WorldWide 2025	24.48	OSINT	files
Memories_Linger_On	WorldWide 2025	24.48	OSINT	files
Bulletproof	WorldWide 2024	–	OSINT	files
Identity	WorldWide 2024	–	OSINT	files
Memorial	WorldWide 2024	–	OSINT	files
To_the_sky	WorldWide 2024	–	OSINT	files