GaslightCTF 2026
gaslightCTF is a jeopardy-style CTF both for complete beginners and more advanced players open to everyone. gaslightCTF is hosted by a team of UK secondary school students.
Players may participate in teams of up to five members. Teams may belong to the following divisions: Secondary School, University, and Open.
Find out more on our website: https://gaslightctf.cooking/ New to CTFs? Check out https://primer.picoctf.org/ for a beginners guide!
Thank you to our sponsors for making this event possible! - Trail of Bits https://trailofbits.com/ - OtterSec https://osec.io/
Join our discord: https://discord.gg/6nGCQcasP6
Web 3
| Challenge | Has |
|---|---|
| biscuit | files |
| json_warehouse | files |
| messageboard | files |
Pwn 3
| Challenge | Has |
|---|---|
| good_enough | files |
| thirds | files |
| ucas | files |
Reverse 2
| Challenge | Has |
|---|---|
| Compiled_Source_Sheets | files |
| ohfrick | files |
Crypto 9
| Challenge | Has |
|---|---|
| CompleteHTTP | files |
| NEWJEANS_IS_FIVE | files |
| Where_the_dream_starts_1 | files |
| Where_the_dream_starts_2 | files |
| Where_the_dream_starts_3 | files |
| affine_hill | files |
| down_the_stream_1 | files |
| down_the_stream_2 | files |
| no_info | files |
Forensics 5
| Challenge | Has |
|---|---|
| 4_piece_puzzle | files |
| blackout | files |
| good_luck | files |
| icon_sketch | files |
| layered_pages | files |
Misc 7
| Challenge | Has |
|---|---|
| Tuning_Keyboard_v6.7 | files |
| meow | files |
| mineguesser | files |
| odyssey | files |
| quack | files |
| speedy | files |
| useless_rce | files |