Room SDK
Design your own rooms in Lua or Rust. Hot-reload locally, share globally.
Welcome to port4k
A compact, modern MUD with persistent progress, quick sessions, and community-built rooms. Minimal friction, maximum adventure. Runs on anything with a terminal — and yes, there's a web client.
Status
Online
Quick connect
your.host.tld:4000
Accounts
Free. Persistent. Argon2 passwords. Bring a friend.
Fast travel
Short sessions, long arcs. Jump in, loot, and log off — your progress stays.
Fair grind
No pay-to-win. Earn coins, craft gear, and unlock routes as you explore.
port4k is a hobby-first MUD project focused on creative rooms, player cooperation, and smooth onboarding. We're building a space-themed dungeon with lightweight social features and a modern toolchain. Want to help? Drop by and say hi.