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Rustic installs Horizon, keeps your instances and mods tidy, starts a server for your friends without port forwarding, and keeps your friends one click away.

DownloadSee Rustic Server

requires your own copy of the game · free

Everything comes from one place.The launcher talks to each, and checks it all.

Download the launcher

Your Microsoft tokens never leave your computer. Statistics stay off unless you turn them on. Cosmetics are visual only, priced in real money, without loot boxes. And the server you host for your friends keeps running even when a plugin fails.

Almanac · 2026

What Rustic does

Six notes on the launcher. Scroll to leaf through them: each one pins, and the next slides up over it.

  • Video (example data): search Explore for a mod and install it into the active instance.

    01 · Instances

    Instances that just work.

    Pick a Horizon build, add mods, packs and shaders: every download is verified before it touches your game.

    instances
  • Video (example data): create a Rustic server in the wizard, message a friend, join their game.

    02 · Server

    A server in two clicks.

    On this computer or your own VPS: console, players, backups and live statistics in one screen.

    server
  • Video (example data): friends come online, a message arrives and gets an answer, a friend joins the party, then join a friend’s server.

    03 · Social

    Friends, one click away.

    See who is playing, chat, and join a friend's server from an invite: the launcher starts the right instance for you.

    social
  • Video (example data): buy a cosmetic in the store and equip it in the Locker.

    04 · Locker

    Your look, no loot boxes.

    Cosmetics are optional and shown at their price before you pay; what you buy is yours and goes straight to the Locker.

    cosmetics
  • Video (example data): the console of a Rustic server shows a plugin that failed at start-up; it is updated from the Plugins tab and reloaded while the server keeps running.

    05 · Rustic Server

    Plugins that never crash.

    Plugins run isolated in WebAssembly: an error or an infinite loop disables that plugin, the server keeps going and you reload it live.

    plugins
  • Video (example data): choose an instance in Rustic Launcher, press Launch, the game starts.

    06 · Launch

    One click to play.

    The big Launch button starts the right instance, with your mods and your Microsoft account, nothing to set up again.

    launch
rustic server · sandboxed plugins

A plugin can never crash the server: it is disabled with a log line, and the game goes on.

Robust where it counts.

Plugins run in a WebAssembly sandbox with fuel, memory and time limits. A trap, a panic or an infinite loop disables that plugin; the server goes on.

    • Every plugin runs isolated, in WebAssembly
    • Fuel, memory and time limited on every call
    • Error, panic or infinite loop: only that plugin is disabled
    • Updated and reloaded while the server runs
    See the sandboxHost a server

    • 0.37 µs for a host import round trip
    • 1.3 µs for a console command to a plugin
    • 21.3 µs for an event with 10 subscribed plugins
    • 180 ms cold compile, 0.24 ms from the cache
    See the numbersDownload

    • 5 official plugins, in English and French
    • rustic new, build, check, test, run --watch
    • Tests run the real .wasm in an in-memory server
    • Rustic Bridge (early): Bukkit and Paper jars isolated in a JVM
    See the pluginsWrite a plugin
Example · server logonline

buggy: infinite loop

TPS before the fault20
TPS after the fault20

0players disconnected; only the faulty plugin is disabled

What the launcher shows for a running server. The figures in this view are example data. example

  • Tick time

    Your server against the 50 ms budget

    19.9 tps
    budget
    11.8 ms

  • Player activity

    Players online over 24 hours, evening peak included.

    19

    players at the 9 pm peak

  • Relay routes

    4 friends connected through Rustic Relay

    relay
    LNIT

  • A plugin crashes, the server keeps going

    20tps, uninterrupted
    1Loaded2Enabled3Infinite loop4Disabled alone5Updated6Reloaded

  • Your server. Today and tomorrow.

    The launcher watches your servers for you: tps, activity, relay and friends online, without opening a console.

    Create a serverDownload

The launcher and hosting on your own machines cost nothing. Cosmetics are optional. Managed hosting comes later, priced at launch.

  • Rustic Launcher

    €0/ forever

    no subscription

    • Instances, mods, resource packs and shaders
    • Servers on this computer or your VPS
    • Rustic Relay: friends join without port forwarding
    • Friends, chats and parties
    Download

  • Store

    À la carte

    purely visual cosmetics

    • No effect on gameplay
    • Real prices, VAT included
    • No loot boxes, no virtual currency
    • Minors’ purchases approved by a parent
    Visit the store

  • Rustic Cloud

    Soon

    prices announced at launch

    • Managed servers, with the same tools as yours
    • Hosted in the EU
    • Waitlist, no commitment
    Create an account to join the waitlist

Ready for your next session?

Download the launcher and sign in with the Microsoft account that owns the game.

Download Rustic