Krystal Arena / ethical hacking, forged on-chain
Root the box. Forge the Sigil.
Endless scenarios. Our engine forges new rooms on demand. Every session a new host, a new story, a new puzzle. Every root mints a Sigil — a living on-chain credential that grows with your career, verifiable by anyone, portable across the web.
no card for demo · browser-only · cancel anytime
op@sc-privesc-suid:~$ uname -a; id
Linux sc-privesc-suid 5.15.0-91-generic #101 SMP x86_64 GNU/Linux
uid=1002(op) gid=1002(op) groups=1002(op)
op@sc-privesc-suid:~$ find / -perm -4000 -type f 2>/dev/null
/usr/bin/mount
/usr/bin/su
/opt/tools/runner
op@sc-privesc-suid:~$ file /opt/tools/runner
/opt/tools/runner: setuid ELF 64-bit LSB, dynamically linked…
op@sc-privesc-suid:~$ /opt/tools/runner -- sh
[+] objective caught — privesc_suid_vector
[+] sigil charge +1 · pending mint
Proof of skill · on-chain · evolving
Every root you land forges a Sigil.
One wallet, one Master Sigil. Each scenario completed, each novel TTP, each bounty earned — a new mint, a new evolution of the seal. Your career becomes a single on-chain artifact. Verifiable by an employer. Tradeable on a market. Gated into the wider Krystal ecosystem.
Initiate
the first mark
Scout
seeker of edges
Operator
hands on the box
Shadow
without footprint
Ascendant
named in the log
seals shown are example visualisations · real sigils are image-to-image generated per mint
Verifiable
Anyone can check a wallet on Polygon and see exactly which tracks you've cleared.
Evolving
Image-to-image generation mutates your seal with every mint. No two career seals look alike.
Gated access
Your Sigil unlocks private scenarios, ShadowCrawl dungeons, and BlackDome intel tiers.
Scenario catalogue · auto-generating
Endless rooms, custom-forged. No walkthrough fits.
A sample of the live catalogue below. Our Director engine forges fresh scenarios on demand — weekly drops for every subscriber, plus Pro-tier custom builds from any vuln class you name.
Four moves
How a run unfolds
Launch
Pick a scenario. A fresh Linux environment spins up in your browser. No installs, no VPN, no container gymnastics.
Hunt
Enumerate services, read logs, pivot between shells. Objectives are hidden. The host has its own story every run.
Capture
Land the root. Or the webshell. Or the IR verdict. Scoring rewards stealth, speed and completeness — not brute force.
Forge
The run finalises and a Sigil mint request fires. Your Master Seal evolves. Your on-chain career grows.
Pro tier · live
The target is watching you back.
DAEMON is an adaptive persona stitched into every Pro scenario. It narrates, taunts, misdirects. It rotates creds when you get close. It deletes its own footprints. It wants you to fail interestingly. Most players do.
> op@host attempted cat /root/.ssh/authorized_keys
daemon: “you’re warm. warmer than the last twelve. i moved the key. try harder.”
> op@host ran find / -newer /etc/hostname
daemon: “rookie move. timestamps are a lie on this box. look at the inodes.”
> op@host ran ls -i /var/log/
daemon: “there you go. now you’re hunting like someone who means it.”
Why it’s not a CTF
Static CTFs die the day someone writes a walkthrough. Arena doesn’t.
Static CTF
Krystal Arena
three tiers
Pay once you’re hooked
Demo is free forever. Pro unlocks every scenario, DAEMON mode, and Sigil minting.
Demo
no signup
Taste the arena.
- One rotating scenario
- 15-minute session
- Full terminal + objectives
- Public scoreboard view
Pro
per month · or $99/yr
The whole arena, every month.
- Every track + weekly new drops
- Unlimited session time
- DAEMON adaptive defender
- Sigil minting (gas covered)
- Custom scenario generator
Teams
5+ seats · private tenancy
Red-team labs, verified on-chain.
- Private scenarios + bounty hosting
- SSO + seat management
- Branded Sigil collection
- API access to intel patterns
- Onboarding + priority support
the door is open
Your next scenario hasn’t been built yet.
It will be, the moment you connect.