Web
Intro to Web Security
Learn how attackers see the web, then find your first flags.
webhttpdevtools
// pick your next challenge
All rooms
10 rooms match your filters.
Linux
Linux Fundamentals
Get comfortable on the command line, the hacker home turf.
linuxbashcli
Network
Network Fundamentals
How data actually travels between machines.
networktcp-iposi
OSINT
OSINT Fundamentals
Find what is hiding in plain sight.
osintreconmetadata
Start Here
Welcome: How This Platform Works
What a room, task, flag and point are — and how to answer your very first question.
beginnerwelcomebasics
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Staying Legal & Safe
The single most important lesson: only ever test systems you own or are allowed to test.
beginnerethicslegal
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Setting Up Your Free Practice Lab
Two ways to start — browser-only, or a free isolated Kali Linux VM. Step by step.
beginnerlabkali
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The Linux Terminal, From Zero
What a terminal is, how to read the prompt, and ten commands you will use forever — try each one.
beginnerlinuxterminal
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Your Essential Toolkit
The handful of tools every beginner should know, what each one does, and how to install them.
beginnertoolsnmap
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Your First Hack: A Guided Walkthrough
Capture a real hidden flag on this very website, step by step. No tools required.
beginnerreconview-source