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Daily AlpacaHack

A CTF challenge series with fun puzzles to enjoy every day

What is Daily AlpacaHack?

We regularly publish simple, beginner-friendly or educational CTF challenges!

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Solve each challenge within its time window to appear on the leaderboard.

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Today's Challenge
tchentchen
Not so Pyf**k
Misc
Medium
53 solves
Submissions (latest 3)
yoshy

SOLVED!

Aug 9, 10:44 PM

Leaderboard

Try the first challenge

Is this your first CTF? Let's begin by tackling the first challenge released on Daily AlpacaHack.

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admin
AlpacaHack 2100
Misc
Welcome🌱
2,084 solves
Upcoming challenges reveal the , , and in advance.
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May 2026

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27
shiragishiragi
Unrevealed TXT
Misc
Easy🌱
144 solves
28
seriotonserioton
unheard
Misc
Medium
79 solves
29
minaminaominaminao
permission denied
Misc
Hard
85 solves
30
minaminaominaminao
permission denied 2
Misc
Medium
85 solves
1
admin
Alpaca++
Misc
Welcome🌱
324 solves
2
tchentchen
Alpaca Rangers 2
Web
Easy🌱
299 solves
3
pppp4649pppp4649
Small N
Crypto
Easy🌱
205 solves
4
hiikunzhiikunz
secret-table-2
Web
Medium
177 solves
5
seriotonserioton
do the math
Misc
Medium
120 solves
6
trimscashtrimscash
func-array
Pwn
Easy🌱
172 solves
7
minaminaominaminao
permission denied 3
Misc
Medium
120 solves
8
baumroll1234
Vending Machine
Misc
Easy🌱
209 solves
9
hiikunzhiikunz
reused n
Crypto
Medium
131 solves
10
rsk0315
Bounds Checking
Pwn
Hard
96 solves
11
seriotonserioton
Mirage
Rev
Easy🌱
148 solves
12
minaminaominaminao
hidden service
Misc
Medium
109 solves
13
tchentchen
Super Short Python Golf
Misc
Medium
126 solves
14
minaminaominaminao
Equation Cipher
Crypto
Medium
109 solves
15
tan90909090tan90909090
curl as a service
Web
Misc
Medium
147 solves
16
k0080k0080
Please Link This
Pwn
Hard
92 solves
17
tan90909090tan90909090
curl as a service 2
Web
Misc
Hard
104 solves
18
shiragishiragi
Flag for Switch
Web
Easy🌱
245 solves
19
pppp4649pppp4649
Small d
Crypto
Medium
121 solves
20
tchentchen
Kakuzuke
Web
Medium
130 solves
21
kakur41kakur41
Python:Impossible
Misc
Medium
112 solves
22
nozokare
Time Travelers' OTP
Web
Medium
98 solves
23
minaminaominaminao
Even Worse RSA
Crypto
Hard
64 solves
24
k0080k0080
25
minaminaominaminao
Catrunner
Misc
Easy🌱
134 solves
26
baumroll1234
I cannot decrypt RSA
Crypto
Medium
94 solves
27
tchentchen
Hello Programmer!
Web
Medium
89 solves
28
shiragishiragi
AlpacaForm
Rev
Medium
84 solves
29
pppp4649pppp4649
Decrypt Shop
Crypto
Medium
90 solves
30
rsk0315
Slipboard
Web
Hard
72 solves
31
ptr-yudaiptr-yudai
login-bonus-3
Pwn
Hard
89 solves

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