OpenMW

openmw.org Mods & Fan Projects WebsiteOpen source

The Elder Scrolls III: Morrowind can run through OpenMW, an open source engine reimplementation with downloads and documentation.

openmw.org
OpenMW homepage screenshot

About OpenMW

OpenMW is an open source reimplementation of the engine used by The Elder Scrolls III: Morrowind. Downloads are offered for all supported operating systems, with source code, a wiki, FAQ, forum and issue tracker available on the site. The project also includes a content file editor and a Lua scripting API aimed at modders, and release notes describe ongoing work such as gamepad improvements and terrain vertex painting.

Key features

  • Open source Morrowind engine reimplementation with publicly available source code
  • Downloads for all supported operating systems, including release candidates
  • Lua scripting API allowing modders to create custom magic effects
  • Load script context that injects or modifies game data after loading
  • Content file editor with terrain vertex painting
  • Gamepad menu navigation and quick item transfer
Best for: Morrowind players and modders who want an open source engine and modding tools rather than the original engine.
Good for
  • Source code, issue tracker, wiki, FAQ and forum are all publicly available
  • Existing saves, configuration files and mod setups can generally keep being used across releases
  • Modders can extend game data and magic effects through the Lua scripting API
Watch out for
  • The saved game format changed since 0.50.0, so newer saves cannot be loaded in older releases
  • Shader mods and mods implementing UI widgets via OpenMW-Lua may need updates to avoid slowdowns or visual artifacts
  • Newer features are split between stable releases and release candidates, with listed known issues in RC notes

OpenMW at a glance

Website
openmw.org
Type
Website
Pricing
Not confirmed. Check the site
Platforms
Web
Open source
Yes · Source code
Language
English
Last checked
Oct 6, 2026 · Online when checked
Listed
Oct 5, 2026

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OpenMW FAQ

Can I keep using my existing saves and mods after updating?
Release notes state it is generally safe to keep using existing saves, configuration files and mod setups in a new release, but the saved game format changed since 0.50.0, so saves made in a newer release cannot be loaded in an older one.
What can modders do with the Lua scripting API?
Version 0.51.0 allows modders to create magic effects through the scripting API and introduces a Load context that lets scripts inject and modify game data right after it is loaded.
Where can I download OpenMW?
Stable releases are available from the Downloads page for all supported operating systems, and release candidate builds are offered from the project's GitHub releases page.
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