Forge yourselfin the dark
Hands-on labs, live CTF competitions and battle-ready machines. Train against real vulnerable systems, capture flags, and climb the global ranks.
From script-kiddieto operator
One platform for hands-on offensive training — labs, competitions, community and real bounties. Everything below is graded on proof, not on watching a video.
Vulnerable machines
Spin up isolated boxes and root real targets in gVisor-sandboxed labs with one click. Every box is a full system, not a puzzle box.
248 live · 6 difficulty tiersLive CTF arena
Jeopardy and attack-defense events with real-time scoring, first-blood alerts and a scoreboard that moves while you watch.
86 running · weekly finalsGuided tracks
Beginner-to-elite learning paths with hands-on, gated modules. Each one ends with a box you have to root to move on.
34 paths · 900+ modulesCommunity forum
Trade tradecraft with a global community. Get unstuck with nudges instead of spoilers, and level up with people ahead of you.
no spoilers · nudge cultureWriteups
Publish and read solution writeups — unlocked only after you legitimately root the box, so nothing is spoiled before you earn it.
proof-gated · 40k publishedBug bounties
Hunt real vulnerabilities in live programs and earn cash bounties paid straight out. The same skills, pointed at production.
live programs · paid outReal systems.Real root.
Every target is a full machine in an isolated sandbox — no simulations, no scripted paths. Get in however you can, then prove it with a flag.
Flags are verified server-side against a per-user secret, so a shared answer is worth nothing. Writeups stay locked until your own submission lands.
The globalleaderboard
Top operators this season, ranked by points across machines, challenges and CTFs. Resets every 90 days — the ladder is a snapshot, not a trophy case.
Your first boxis waiting
Create a free account, connect to the VPN, and root your first machine in the next twenty minutes. No card to start.
Break in.Legally.
128,000 operators are already on the ladder. The only thing between you and your first root is a free account.