Learn Cybersecurity Through Interactive Challenges
🕹️ Cyber Playground
Play. Practice. Protect.
Master cybersecurity one challenge at a time — six free, browser-based games covering SOC analysis, phishing detection, password security, Linux, and the hacker career ladder.
Player select
Choose Your Cabinet
Every game below runs on its own subdomain, in your browser, no installs. Each one focuses on a different real-world security skill — pick one and start learning by doing.
Cybersecurity Quiz Arena
Fast-paced trivia that turns security knowledge into a scoreboard.
What it is
A rapid-fire quiz arena that tests your cybersecurity knowledge across networking, cryptography, social engineering, malware, and security fundamentals. Built to be the easiest on-ramp in the Playground — quick rounds, instant feedback, and a scoreboard that keeps you coming back.
How to play
- Pick a category and jump into a round.
- Answer each question before the clock runs out.
- Get instant right/wrong feedback with the reasoning.
- Bank your score and climb the leaderboard.
Phishing Email Challenge
A living inbox that trains your eye for real phishing tradecraft.
What it is
A realistic email inbox simulator styled after Outlook, Gmail, and Office 365. You're handed a real-looking email and have to decide: legitimate, or phishing? Every answer unlocks a full breakdown — sender analysis, SPF/DKIM/DMARC results, URL reputation, attachment risk, headers, and the exact social-engineering trick used against you.
How to play
- Read the email exactly like you would in your own inbox.
- Flag it as safe or phishing before the timer runs out.
- Review the full technical breakdown of what gave it away.
- Earn XP, keep your streak, and tackle the daily email.
PasswordLab — GPU Cracking Simulator
Watch exactly how fast — or slow — your password really dies.
What it is
A dark-terminal password security lab modeled on tools like Hashcat and John the Ripper. Type or generate a password and instantly see its strength, entropy, hash type, and estimated crack time — then launch a simulated attack and watch an animated GPU cluster, binary rain, and live power/temp readouts render the crack in real time.
How to play
- Enter a password (or generate a random one).
- Review its strength, entropy score, and hash type.
- Choose an attack: dictionary, mask, brute-force, or rainbow table.
- Watch the GPU cluster crack it and read the time-to-crack result.
Ember Keep — Cybersecurity Escape Room
A ransomware siege told across 11 rooms. The clock never stops.
What it is
A story-driven escape room where the fictional company Obsidian Keep Systems is under active ransomware siege by the Emberwyrm Cartel. You have to fight through 11 rooms — from the Windows Server to the SOC, Cloud, API Gateway, Active Directory, Database, SIEM, Dark Web, CEO Office, and Data Center — before the timer hits zero.
How to play
- Enter a room and read the briefing.
- Solve the embedded technical challenge to unlock the exit.
- Use your inventory and hints if you get stuck.
- Clear all 11 rooms before the countdown ends.
Hacker Tycoon
From broke student to enterprise MSSP founder — one click at a time.
What it is
A career-building tycoon game. You start as a student with no laptop, no money, and no certs, and click your way up through a full cybersecurity career — TryHackMe and HTB, bug bounty, an internship, SOC analyst, security engineer, consultant — all the way to founding your own firm, the fictional Aegis Cyber Group.
How to play
- Click to earn XP, reputation, and skill points.
- Spend them on gear, courses, and skill-tree unlocks.
- Take on client contracts and handle random incidents.
- Hire employees, grow your office, and level up your career.
Linux Command Challenge
A real Kali-style terminal that grades your typing, not your guessing.
What it is
A live, Kali Linux-styled terminal trainer — not multiple choice, an actual command line. You're given a task and you have to type the real command, with real syntax, and get validated instantly against a simulated filesystem. Built to build actual muscle memory for the command line, not just recognition.
How to play
- Pick a level, from Linux Basics up to Advanced/Security.
- Read the task and type the command into the live terminal.
- Get validated instantly, with autocomplete and hints on offer.
- Progress through 1,126+ non-repeating challenges and earn a certificate.
No installs, no signups
Every cabinet runs straight in your browser on its own subdomain. Click launch and you're playing — nothing to download, no account required to start.
Real tradecraft, safe sandbox
Every challenge is modeled on real attacker and defender workflows — phishing headers, hash cracking, Linux commands, SOC triage — so what you practice here actually transfers.
Built by a practitioner
Designed and built by apisecurityguide.com, run by a working SOC/SIEM analyst, so the scenarios are grounded in what security teams actually deal with.
Ready when you are
Pick a Cabinet, Start Learning
Six games, six different skills — all free. Jump back to the top and find the one that matches what you're trying to get better at.
▶ Back to the Arcade
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