> ## Documentation Index
> Fetch the complete documentation index at: https://docs.summerengine.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Is Summer Engine compatible with my existing project?

> Yes. Open your project and continue working with AI assistance. No conversion required.

## Yes, Completely Compatible

Summer Engine works with industry-standard project formats. You can open any existing Godot project in Summer Engine and continue working on it immediately. No conversion, no migration, no lock-in.

## What Works Out of the Box

**All existing Godot projects.** Summer Engine is built on the Godot codebase. Your `.tscn` scene files, `.gd` scripts, `.tres` resources, and `project.godot` configuration are identical. A `git diff` between a Summer Engine-edited file and a Godot-edited file shows only your changes. No proprietary metadata injection.

**Third-party libraries and plugins.** Most Godot plugins work in Summer Engine without changes. Plugins that modify the editor interface may need updates for AI integration, but the vast majority work as-is.

**Export templates.** Web, desktop (Windows, Mac, Linux), and mobile (iOS, Android) export all work. You can build for any platform Summer Engine supports.

**Team workflows.** Team members can use Summer Engine and vanilla Godot interchangeably. An artist opens the project in Godot to edit scenes; a programmer opens the same project in Summer Engine for AI assistance. Both commit to the same repo. No merge conflicts from tooling differences.

## What Happens When You Open Your Project

1. **File → Open Project** (or Project Manager) → browse to your project folder → select `project.godot`
2. Summer Engine automatically indexes your project (30 seconds to 2 minutes depending on size)
3. The AI learns your scenes, scripts, assets, and relationships
4. You start chatting. Describe what you want to change; Summer Engine applies it

## Zero Lock-in

Summer Engine projects *are* Godot projects. Identical file formats. If Summer Engine disappeared tomorrow, your project would open in Godot 4 without modification. You'd lose AI assistance, but your game, code, and assets would be unaffected.

## Version Compatibility

Summer Engine supports Godot 4.x project formats. Projects from Godot 3.x need the standard Godot 3→4 migration process before opening in Summer Engine.

## Related

<CardGroup cols={1}>
  <Card title="Quickstart: Existing Project" icon="folder" href="/quickstarts/existing-godot">
    Open your project in Summer Engine in 5 minutes
  </Card>
</CardGroup>