$ ctf42

Challenges

Category
Difficulty
CTFtime weight
–
Higher weight ≈ harder, more prestigious event.
Year
–
Must have
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21 challenges · browse all techniques

Challenge CTF Weight Category Has
Untitled_Encore
#reversing#constraint-solving
 SekaiCTF 2026 79.25 Reverse files wu 1
Gondola
#reversing#webassembly#z3
 SekaiCTF 2025 55.00 Reverse files wu 1
Crack_Me
#android#firebase
 SekaiCTF 2024 36.96 Reverse files wu 2
X64_Extension
#reversing#aes-ni
 SekaiCTF 2024 36.96 Reverse files wu 1
Teyvat_Travel_Guide
#reversing#maze-solving
 SekaiCTF 2023 24.86 Reverse files wu 1
MatrixLab1
#java-bytecode#reversing
 SekaiCTF 2022 24.86 Reverse files wu 2
MatrixLab2
#pyinstaller#reversing
 SekaiCTF 2022 24.86 Reverse files wu 1
Azusawa_s_Gacha_World SekaiCTF 2023 24.86 Reverse files wu 1
Chibile SekaiCTF 2026 79.25 Reverse files
Alchemy_Master SekaiCTF 2025 55.00 Reverse files
Miku_Music_Machine SekaiCTF 2025 55.00 Reverse files
Sekai_Bank_Signature SekaiCTF 2025 55.00 Reverse files
What_in_Ternation SekaiCTF 2025 55.00 Reverse files
sekai_craft SekaiCTF 2025 55.00 Reverse files
Magnum_Opus SekaiCTF 2024 36.96 Reverse files
Sekai_Licensing SekaiCTF 2024 36.96 Reverse files
Conquest_of_Camelot SekaiCTF 2023 24.86 Reverse files
Guardians_of_the_Kernel SekaiCTF 2023 24.86 Reverse files
Sahuang_Flag_Checker SekaiCTF 2023 24.86 Reverse files
BabyChicken SekaiCTF 2022 24.86 Reverse files
MatrixLab3 SekaiCTF 2022 24.86 Reverse files