Drop your disc image
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openMX · a rewrite of MX Unleashed

Motocross, the way it rode on the PS2.

openMX is MX Unleashed rewritten from scratch, the same game tick for tick, running in your browser and on your desktop, online with friends. You bring the disc.

Pick your disc GitHub
Free and open source · your own disc Pick your disc About Files

Pick your disc

openMX plays from your own copy of MX Unleashed for the PlayStation 2. Pick the disc image you dumped. It is copied into this browser's own storage for this site (OPFS), stays there for your next visit, and never leaves your machine.

MX UnleashedPlayStation 2 · USASLUS-20767.iso

or drop it anywhere on this page How to dump your disc

Three steps

1

Dump your disc

Make an .iso of your own MX Unleashed disc with a PC drive or a PS2. The guide walks through it.

2

Pick it here

It is copied once into this browser. Nothing is uploaded, and nothing from the disc is on this site.

3

Ride

Next time the page opens straight on the menu. Ride alone, or join a friend with their code.

About

The original

MX Unleashed, Rainbow Studios' motocross game, published by THQ in 2004: free roam over big open maps, supercross and nationals, the biplane, the monster truck and the rest of the lot.

PlayStation 2Xbox2004

openMX

A from-scratch rewrite in Rust. The physics, the timing and the rules are ported and proved against the original, tick for tick; the picture is new, drawn as sharp as your screen allows. Everything is read from your disc as you play.

BrowserDesktopOnlineModsOpen source

Desktop

Linux & Steam Deck

The same game as a native build: the GPU renderer, pads, split screen and mods. Unpack it, put kit.toml beside it with your disc image's path, and run openmx.

Download for Linux

Windows

Coming soon. Every build, its release notes and its signed checksums are on GitHub.

All builds

Settings & files

Lobby name
What other riders see when you join or host online.
Storage
Reading what this site keeps…
Disc
No disc in this browser yet.
Mods
Mods load in the desktop build, from its mods folder. The browser does not take mods yet.
Clear caches
Drops the saved copy of the page and the game module; the next visit downloads them again. Keeps the disc.
Export settings
Downloads this site's settings as a file.
Erase everything
The disc, the settings and the caches: this site forgets you were here.

Support

Chip in

openMX is free and always will be.

Chip in

How it is made

Written with AI agents, every change proved against the original before it lands. So far:

—prompts
—tokens
—commits
A new version of openMX is out.