> ## Documentation Index
> Fetch the complete documentation index at: https://summer-18f03259-codex-native-multiplayer-entry.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# What if I have an existing project?

> Open a compatible project in Summer Engine, review the first import, and continue building a Summer game.

Open a committed copy in Summer Engine and review the first import. GDScript, text scenes,
resources, and assets use familiar formats; native extensions, editor plugins, and
version-sensitive imports still need compatibility testing. The generated
[compatibility reference](/reference/compatibility) is the source of truth.

## Related

<Card title="Quickstart: Existing Project" icon="folder" href="/quickstarts/existing-godot">
  Open your project in Summer
</Card>