SillyCTF 2025
Registration now open! Register at sillyctf.psuccso.org.
Join Discord for updates: https://discord.gg/sEcYRUTAvj
The least serious CTF. Hosted by the Competitive Cyber Security Organization at Penn State.
SillyCTF 2025 will include cybersecurity challenges across several different categories, with many unconventional problems to solve.
Note that prizes will only be awarded to teams composed entirely of currently-enrolled undergraduate or graduate students with .edu email addresses.
Reverse 2
| Challenge | Has |
|---|---|
| Boom_Meter | files |
| You_Smell_That | files |
Crypto 5
| Challenge | Has |
|---|---|
| ScratchCrypto1 | files |
| ScratchSpy | files |
| String_Weaver | files |
| Wittle_Gwean_Bwean | files |
| You_Thought_I_Was_Feeling_U | files |
Forensics 5
| Challenge | Has |
|---|---|
| Are_You_Ready_Mr._Krabs | files |
| Costco_Membership | files |
| Frying_Chicken | files |
| It_Hertz_when_IP | files |
| Purgatorio | files |
Misc 14
| Challenge | Has |
|---|---|
| Bro_Where_Is_He | files |
| Cardboard | files |
| Deice_The_Spice | files |
| Documented | files |
| Farting_on_the_Editors | files |
| Hash_Me_If_you_Cani | files |
| It_is_pitch_black._You_are_likely_to_be_eaten_by_a_grue. | files |
| LSD_Simulator | files |
| Munch_Music | files |
| On_The_House | files |
| Pinwheel | files |
| TRAPPIST_1e | files |
| geoGRUphical_Data | files |
| smile | files |
OSINT 6
| Challenge | Has |
|---|---|
| Big_Mood_Energy | files |
| Wheres_my_waffles | files |
| mc_OSINT_1.0 | files |
| mc_OSINT_2.0 | files |
| mc_OSINT_2.1 | files |
| mc_OSINT_3.0 | files |