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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

Submissions (latest 3)

SOLVED!

Sep 21, 11:06 PM

SOLVED!

Sep 21, 10:27 PM

SOLVED!

Sep 21, 6:49 PM

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

AlpacaHack 2100

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Sep 2026

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tchen

Web

Medium

74 solves

1

admin

QUIZ ALPACASHOCK

Misc

Welcome🌱

125 solves

2

hiikunz

Misc

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3-4

tan90909090

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5

baumroll1234

Vending Machine: Revised Version

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87 solves

6-8

minaminao

Crypto

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56 solves

　

minaminao

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9-11

minaminao

Misc

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43 solves

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tan90909090

sin function vs. fsin instruction

Rev

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14-15

tan90909090

integer division

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edwowmath

neighboRhood_diStAnce

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hiikunz

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39 solves

　

hiikunz

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2501

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Rows:

Alpaca Nation

Topic: WelcomeReleased: Jul 1, 2026

312 solves

Welcome🌱1.5

by

admin

Tags

🦙 < Which country is said to have the largest alpaca population in the world?

Answer with the country name in English in flag format. For example, if the answer were "Japan", the flag would be Alpaca{Japan}.

description solves writeups