CLI-GAMES
An intentionally vulnerable digital multiverse
Explore vulnerable Linux systems, terminal games, and sprawling ASCII worlds. Capture flags, chase secrets, sharpen real skills, and compete across a universe connected by the command line.
browser terminal / world network
Command the worlds within
Games teach systems. Systems hide stories.
Every world speaks the same language: look closer, try a command, and follow what changes.
01 / system
What It Is
CLI-Games is a library of games that you play programmatically. The games reinforce one another - what you learn in one game leads to experiences in another.
There are classic games reimagined for the terminal, challenges that require Linux mastery, and RPG universes made entirely out of ASCII.
What you learn in one world opens paths through another. The skills you build here carry into real systems.
visitor@cli-games:~$ universe --map CLASSICS ──┐ TRAINING ──┼──► SKILLS ──► WORLDS RPG ───────┘ link state connected secrets unresolved next command yours
02 / choose a path
How It Works
Examples by category.
Classic
Board games and puzzles, stripped to their essence
chess / minesweeper / wordie
$ chess02Training
Hunt flags in sandboxed terminals, or join live CTF events on real Linux infrastructure
ctf / the range / hackerman
$ ctf03RPG
Text adventures with branching stories and hidden secrets
accidental-knighthood / dial-up-days
$ accidental-knighthood03 / library
Games
30 playable games and growing
04 / network
Community
What good is mastery if you can't show it off?
41 players · 1 crew connectedavailable now
challengePvP Challenges
Challenge friends to chess, checkers, or battleship
05 / transmissions
Featured
How Social Features Work: The Unified Network Fabric
We wanted to do something different for making online connections. Turns out firewall rules map quite nicely to social features.
read report →02from the archiveCapture the Flag (CTF) in the CLI-Games Terminal
Too many people try to jump straight into complex exploits and big competitions without first becoming comfortable at the command line. Our system builds from first principles to ensure a rock solid foundation before adding complexity. Mastering the overlooked basics will be your CTF secret weapon.
read report →Discover the power and variety of your terminal
Play a classic, break into a system, or step into a world. The command line connects them all.