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Ultima Online cover art

InstallDecompilation

Ultima Online

Origin Systems · 1997 · PC

Get it on GitHubHow to play

Doesn't play in a browser tab yet: it plays on your own device. Opens github.com in a new tab. Follow it to see on your home page when it comes out, or plays here.

On your device

Install

A build to download from the project and run on your device.

  • uo-client

    By xrip20 stars on its repository

    Releases

    Decompilation

    Latest release 1.1.0, May 31, 2026Code last updated Jun 1, 2026

    How to play
    1. Download a build from the project's release page: its files say which systems they run on.
    2. The project's page says what it needs from your own copy of Ultima Online, if anything.
    3. Launch it.

Build from source

The project publishes its code and no build: you build it as its README says.

  • OUO

    By draxinar173 stars on its repository

    Source

    Decompilation

    Code last updated Sep 24, 2026

    How to play
    1. There is no build to download: get the code from the project's repository.
    2. Build it as its README says. What the build gives, a program to run or the original game rebuilt for an emulator, is written there too.
    3. The project's page says what it needs from your own copy of Ultima Online, if anything.

From SubmitGame's list, read Oct 21, 2026, with releases, stars and licenses as each project's repository gives them. The steps are the same for every project of a kind: its own page has the details.

Under the hood: every project behind it, its license and code, how they connect, and who made them.

News

All news
  1. Release · May 31, 2026uo-client 1.1.0, and 1 more since May 26, 2026

About

Ultima Online is the product of Richard Garriott's idea for a fantasy game involving several thousand people who can all play in a shared fantasy world. It is responsible for grandfathering the genre of the MMO, and showing the industry that MMO's were the next era of gaming.

Description from IGDB.

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