A CTF challenge series with fun puzzles to enjoy every day
We regularly publish simple, beginner-friendly or educational CTF challenges!
Solve each challenge within its time window to appear on the leaderboard.
Discussion with friends or AI is welcome (account sharing is prohibited).
Sharing solutions is allowed only after the challenge period has ended.
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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Go to B-SIDETopic: WelcomeReleased: Aug 1, 2026
🦙 < Today is "Alpaca Day", established by the Peruvian government.
According to an article by the Peruvian government, there are two breeds of alpaca. Answer in flag format, using lowercase English letters, with the name of the breed known for having "curly fiber and a fluffy appearance". For example, if the breed name were "Bulldog", the flag would be Alpaca{bulldog}.
abundante fibra rizada.