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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
baumroll1234
Vending Machine: Revised Version
Misc
Easy🌱
42 solves
Submissions (latest 3)
imagino

SOLVED!

Sep 5, 11:12 AM

Leaderboard

Try the first challenge

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

View challenge
admin
AlpacaHack 2100
Misc
Welcome🌱
2,184 solves
Upcoming challenges reveal the , , and in advance.
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Jul 2026

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Mon
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29
tchentchen
Nano Services
Web
Medium
93 solves
30
minaminaominaminao
Super Short System Exit
Misc
Medium
91 solves
1
admin
Alpaca Nation
Misc
Welcome🌱
308 solves
2
hiikunzhiikunz
Flag is A+B
Crypto
Easy🌱
210 solves
3
tchentchen
Lucky Redirect
Web
Easy🌱
182 solves
4
hiikunzhiikunz
Renda
Rev
Medium
134 solves
5
tchentchen
IP Blocked Secret
Web
Hard
72 solves
6
minaminaominaminao
duplicate entry
Misc
Easy🌱
182 solves
7
hiikunzhiikunz
Lazy RSA
Crypto
Medium
122 solves
8
minaminaominaminao
Let's Poly1305!
Crypto
Medium
82 solves
9
shiragishiragi
private method
Misc
Easy🌱
165 solves
10
hiikunzhiikunz
secret-table-3
Web
Medium
98 solves
11
baumroll1234
A slight mistake
Pwn
Hard
78 solves
12
tan90909090tan90909090
13
baumroll1234
Redirecting to Login Page
Web
Easy🌱
202 solves
14
tchentchen
You've Got Shlex
Misc
Medium
90 solves
15
minaminaominaminao
Let's Poly1305! 2
Crypto
Hard
66 solves
16
tchentchen
Beat the Alpaca Lord
Web
Medium
102 solves
17
pppp4649pppp4649
biribiri
Crypto
Medium
92 solves
18
tchentchen
Greetings CGI
Web
Hard
74 solves
19
hiikunzhiikunz
no win func
Pwn
Hard
84 solves
20
tchentchen
Alpaca Blog
Web
Easy🌱
139 solves
21
tan90909090tan90909090
NOP Variant
Rev
Misc
Medium
72 solves
22
arkark
jinjail
Misc
Hard
49 solves
23
tchentchen
True or False
Misc
Medium
101 solves
24
minaminaominaminao
Cache Me If You Can 2
Web
Hard
61 solves
25
k0080k0080
what-is-my-pointer
Pwn
Hard
61 solves
26
tchentchen
Greetings i18n
Web
Hard
73 solves
27
tchentchen
RFC100008
Web
Easy🌱
149 solves
28
2501
One More Approval
Crypto
Medium
62 solves
29
2501
zen.zip
Misc
Medium
70 solves
30
2501
Anyrunner
Misc
Medium
67 solves
31
tchentchen
Small Image Uploader 2
Web
Medium
64 solves
1
admin
Día Nacional de la Alpaca
Misc
Welcome🌱
242 solves
2
2501
Password, Please
Misc
Easy🌱
211 solves

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