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Daily AlpacaHack

A daily CTF challenge with a fun new puzzle every day

What is Daily AlpacaHack?

We publish one simple, beginner-friendly or educational CTF challenge every day!

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Solve within 24 hours of release to appear on the leaderboard.

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Today's Challenge
tchentchen
Beat the Alpaca Lord
Web
Medium
26 solves
Submissions (latest 3)
edwowmath
edwowmath

SOLVED!

Jul 15, 7:47 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🌱
1,976 solves
Upcoming challenges reveal the , , and in advance.
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Jul 2026

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29
tchentchen
Nano Services
Web
Medium
87 solves
30
minaminaominaminao
Super Short System Exit
Misc
Medium
82 solves
1
admin
Alpaca Nation
Misc
Welcome🌱
199 solves
2
hiikunzhiikunz
Flag is A+B
Crypto
Easy🌱
121 solves
3
tchentchen
Lucky Redirect
Web
Easy🌱
117 solves
4
hiikunzhiikunz
Renda
Rev
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101 solves
5
tchentchen
IP Blocked Secret
Web
Hard
63 solves
6
minaminaominaminao
duplicate entry
Misc
Easy🌱
120 solves
7
hiikunzhiikunz
Lazy RSA
Crypto
Medium
97 solves
8
minaminaominaminao
Let's Poly1305!
Crypto
Medium
74 solves
9
shiragishiragi
private method
Misc
Easy🌱
111 solves
10
hiikunzhiikunz
secret-table-3
Web
Medium
80 solves
11
baumroll1234
A slight mistake
Pwn
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67 solves
12
tan90909090tan90909090
13
baumroll1234
Redirecting to Login Page
Web
Easy🌱
115 solves
14
tchentchen
You've Got Shlex
Misc
Medium
78 solves
15
minaminaominaminao
Let's Poly1305! 2
Crypto
Medium
59 solves
16
tchentchen
Beat the Alpaca Lord
Web
Medium
26 solves
17
Coming soon
18
tchentchen
Planned topicCGI
Web
Hard
19
Planned topicStack
Pwn
Hard
20
Coming soon
21
Coming soon
22
Planned topicCache
Web
Medium
23
Coming soon
24
Coming soon
25
Planned topicMAC
Crypto
Hard
26
Planned topicPython
Web
Hard
27
Coming soon
28
Coming soon
29
Coming soon
30
Coming soon
31
Coming soon
2
Coming soon

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Writeups

Writeup for Let's Poly1305! 2

baumroll1234

ja
Let's Poly1305! 2

5 hours ago

Writeup for Redirecting to Login Page

author
ja

2026/07/14 13:20

Rows:

Flags for the FLAG

Topic: UnicodeReleased: Mar 19, 2026

164 solves
Misc
Easy🌱1.5

by

rsk0315

🇯🇵 ← :jp:

flag format: Alpaca{[a-z]+}

flags-for-the-flag.tar.gz

Please sign in to submit the flag.

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