$ ctf42

Challenges

Category
Difficulty
CTFtime weight
–
Higher weight ≈ harder, more prestigious event.
Year
–
Must have
Reset

296 challenges · browse all techniques

Challenge CTF Weight Category Has
Calm_Lambdas DreamhackInvitational 2025 Quals – Reverse files
Camlraderie DreamhackInvitational 2025 Quals – Crypto files
Invitation DreamhackInvitational 2025 Quals – Web files
NFSR_Distinguishing_Adventure DreamhackInvitational 2025 Quals – Crypto files
Nice_forest_picture DreamhackInvitational 2025 Quals – Crypto files
QWV_antagonism DreamhackInvitational 2025 Quals – Pwn files
QWV_equilibrium DreamhackInvitational 2025 Quals – Pwn files
QWV_fracture DreamhackInvitational 2025 Quals – Pwn files
Small_File_Storage DreamhackInvitational 2025 Quals – Web files
Typing_Game_Goes_Hard DreamhackInvitational 2025 Quals – Reverse files
blueprint DreamhackInvitational 2025 Quals – Reverse files
45c6 DreamhackInvitational 2024 Quals – Web files
Emoji_RSA DreamhackInvitational 2024 Quals – Crypto files
FSisOP DreamhackInvitational 2024 Quals – Pwn files
My_First_Game_v0.1 DreamhackInvitational 2024 Quals – Reverse files
Power_of_LCG DreamhackInvitational 2024 Quals – Crypto files
ROT_253 DreamhackInvitational 2024 Quals – Pwn files
Showpping DreamhackInvitational 2024 Quals – Web files
This_is_not_a_web_challenge DreamhackInvitational 2024 Quals – Reverse files
Too_Many_Questions DreamhackInvitational 2024 Quals – Reverse files
Welcome DreamhackInvitational 2024 Quals – Misc files
f_l_and_ag DreamhackInvitational 2024 Quals – Crypto files
kaleido DreamhackInvitational 2024 Quals – Pwn files
mEmoji DreamhackInvitational 2024 Quals – Web files
web3 DreamhackInvitational 2024 Quals – Misc files
babyFirst Codegate 2022 Quals – Web files wu 2
superbee Codegate 2022 Quals – Web files wu 3
KingMaker Codegate 2019 Quals – Misc files wu 3
BackToThe2048 Codegate 2026 Quals – Pwn files
CoMQTT Codegate 2026 Quals – Pwn files
CobWeb Codegate 2026 Quals – Pwn files
CogwartsLang Codegate 2026 Quals – Reverse files
ERP_system Codegate 2026 Quals – Web files
Ghost Codegate 2026 Quals – Crypto files
Greybox Codegate 2026 Quals – Reverse files
Juice_of_Apple_Vegetable_Apricot Codegate 2026 Quals – Web files
Memo Codegate 2026 Quals – Web files
OldSchool Codegate 2026 Quals – Reverse files
PhantomCore Codegate 2026 Quals – Reverse files
RelayDesk Codegate 2026 Quals – Web files