CTF Archive
Theme
Language
UMDCTF · CTF Archive
All CTFs
UMDCTF
6 editions
·
158 challenges
·
2020–2026
View on GitHub
2026
2024
2023
2022
2021
2020
Average
—
/5
Vote and rate each challenge below.
2026
28 challenges
CTFtime
crypto
2
no_brainrot_allowed
0
0
weave
0
0
misc
8
dualflow
0
0
exponential
0
0
flow
0
0
french_baguette
0
0
insider_info
0
0
offknock
0
0
quant
0
0
rush_hour
0
0
osint
4
hades_group
0
0
road_1
0
0
road_2
0
0
road_3
0
0
pwn
5
bag_of_words
0
0
bookmaker
0
0
ipv8
0
0
velvet_table
0
0
vkexchange
0
0
rev
6
gnalekcip
0
0
nuclear_codes
0
0
oracle
0
0
rainbet
0
0
roulette
0
0
the_akari
0
0
web
3
choppediver_oa
0
0
security_breach
0
0
security_breach_ruin
0
0
2024
36 challenges
CTFtime
crypto
6
giedi_composite
0
0
haes
0
0
haes_2
0
0
Key_Recovery
0
0
padding_oracle
0
0
Triple_DES
0
0
misc
9
attack_of_the_worm
0
0
Echoes_of_Arrakis
0
0
i_love_shapes_and_colors
0
0
image_abomination
0
0
llm_compression
0
0
mentat_tokenizer
0
0
possible_futures
0
0
Spice_Harvest_Data_Recovery
0
0
the_worm_strikes_back
0
0
osint
6
bro_thinks_hes_hans_zimmer
0
0
literally_arrakis_I
0
0
literally_arrakis_II
0
0
literally_arrakis_III
0
0
lost_on_caladan
0
0
vlad_pad
0
0
pwn
7
chisel
0
0
mentat_question
0
0
ornithopter
0
0
ready_aim_fire
0
0
the_spice
0
0
the_voice
0
0
worm_eat_worm
0
0
rev
7
cmsc430
0
0
Flavors
0
0
reality
0
0
realitys_revenge
0
0
travel_the_dunes..._with_OCaml
0
0
Typecheck
0
0
undecidable
0
0
web
1
HTTP_Fanatics
0
0
2023
33 challenges
CTFtime
crypto
12
AdiShamir
0
0
AES-TR
0
0
Bulbeuler
0
0
Caterpie
0
0
CBC-MAC1
0
0
CBC-MAC2
0
0
Eeveelutions
0
0
Ekans
0
0
HiddenMessage
0
0
NoisyBits
0
0
pokecomms
0
0
ReduceThyself
0
0
hw
4
beep-boop
0
0
Bleep_1
0
0
Clutter
0
0
EP_815
0
0
ml
2
Elgyems_Password
0
0
french-baguette
0
0
mobile
4
flamecamp
0
0
JNIdorino
0
0
pokeball_escape
0
0
whos_that_pokemon
0
0
pwn
4
Bills_Blazingly_Fast_Memory_Safe_Pocket_Monster_Storage_System
0
0
pokemon_game
0
0
Splash
0
0
You_Want_Me_To_Run_What
0
0
rev
7
but_like_when
0
0
cleffas_surprise
0
0
counter-strike_global_offensive_aimbot
0
0
introduction_to_c
0
0
playtime
0
0
welcome_to_python
0
0
well-connected
0
0
2022
20 challenges
CTFtime
crypto
6
DFA_AES
0
0
DFASpeck1
0
0
DFASpeck2
0
0
MTP
0
0
Squarsa
0
0
VigenereXOR
0
0
hw
2
BongoCat
0
0
Minetest2-MUX
0
0
pwn
4
ClassicAct
0
0
Fork_Knife
0
0
TheShowMustGoOn
0
0
Tracestory
0
0
rev
6
BMP_X_LoveLetter
0
0
DragonPit
0
0
Go_away
0
0
pitrojan
0
0
tiny
0
0
Trainfuck
0
0
web
2
ASimpleCalculator
0
0
CustomerSupport
0
0
2021
36 challenges
CTFtime
crypto
11
Art_Class
0
0
Card_Obsession
0
0
Cards_Galore
0
0
Celebration
0
0
Computer_Troubles
0
0
Freddie_Files
0
0
Office_Secrets
0
0
Subway
0
0
To_Be_Xor_Not_To_Be
0
0
Travel_in_Layers
0
0
Whose_Base_Is_It_Anyway
0
0
osint
5
Justin_1
0
0
Justin_2
0
0
Nikolai_2
0
0
Traveling
0
0
Vacation
0
0
pwn
6
furor-RPI
0
0
Jump_Is_Easy
0
0
Jump_Is_Found
0
0
Jump_Not_Easy
0
0
Jump_Not_Working
0
0
tiktok-RPI
0
0
rev
7
FeistyCrypt
0
0
Painting_Windows
0
0
Starbucks
0
0
UMD-FS-RPI
0
0
Wake_Me_Up_Before_I_Go_Go
0
0
What_is_Memory
0
0
Willow-RPI
0
0
steg
7
Coldplay_Flags
0
0
Hidden_Card
0
0
Magic
0
0
Pickle_Rick
0
0
Roy_Randomness
0
0
Steg_Safari
0
0
Testudo_Pizza
0
0
2020
5 challenges
CTFtime
misc
5
caas
0
0
coalminer
0
0
crypto
0
0
easy_right
0
0
jump_not_found
0
0