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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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Must have Source / Docker Writeup

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Challenge	CTF	Weight	Category	Has
Base64_based	DreamhackInvitational 2025 Quals	–	Web	files
Invitation	DreamhackInvitational 2025 Quals	–	Web	files
Small_File_Storage	DreamhackInvitational 2025 Quals	–	Web	files
45c6	DreamhackInvitational 2024 Quals	–	Web	files
Showpping	DreamhackInvitational 2024 Quals	–	Web	files
mEmoji	DreamhackInvitational 2024 Quals	–	Web	files