Learn Cybersecurity
in a Realistic Game

Build and defend your network, attack your enemies to steal their flags, team up with friends.

No Setup Required

No installation or setup required. Everything runs in your browser. Just one click to get started.

Free to Play

Game is free to play with optional paid plan. No pay to win features. Game resets every month to keep the competition fresh.

Realistic Scenarios

Go beyond isolated CTFs with full recon-to-exploit scenarios that mirror real-world hacking workflows.

Player vs Player

Arena

Build your network, defend it, and steal flags from other players.

Enter a gamified cybersecurity arena where every player builds and defends their own network. Attack other players' networks, find weak services, steal flags, and protect your own infrastructure from incoming attacks. Arena chat, faction pressure, leaderboards, and live competition turn practice into a social hacking experience.

FlagHack logo
Network View

Interactive Network Map

See devices, services, and weak points in one map.

Explore dynamic network topologies with interconnected devices, services, and vulnerabilities. Understand how systems relate, where weaknesses lie, and how attackers move laterally across a network, making every decision strategic.

Command Practice

FlagHack Shell

Learn the attack flow inside a guided terminal.


   ___ _                                _    
  / __\ | __ _  __ _    /\  /\__ _  ___| | __
 / _\ | |/ _` |/ _` |  / /_/ / _` |/ __| |/ /
/ /   | | (_| | (_| | / __  / (_| | (__|   < 
\/    |_|\__,_|\__, | \/ /_/ \__,_|\___|_|\_\
               |___/                         
┌──(user@attacker)-[~]
└─$
nikt0 192.168.0.1:80
CWE-79 Cross-Site Scripting (XSS)

A gamified shell environment that teaches by doing. Interact with a realistic terminal interface designed for learning offensive security techniques. From scanning to exploiting, the FlagHack Shell walks you through the commands, tools, and decision-making used by real hackers.