> For the complete documentation index, see [llms.txt](https://cesium.gitbook.io/cesium-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cesium.gitbook.io/cesium-docs/support/supported-versions.md).

# Which Minecraft versions and launchers does Cesium work with?

Cesium loads into a running game, so it depends on the version of that game and how it was started.

{% hint style="info" %}
Cesium loads into a running game, so it depends on the version of that game and how it was started.
{% endhint %}

## Minecraft versions

Because Cesium attaches to a running game rather than installing into it, the version of Minecraft you start is the version Cesium runs on. If you start a version Cesium does not support, the launcher will not attach.

## Operating systems

The Cesium Launcher runs on Windows 10 and newer. There is no macOS or Linux version.

## Mod loaders

See [Do I need Java, Forge or Fabric?](/cesium-docs/support/java-forge-fabric.md).


---

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