> ## 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.

# I have an existing project. How do I add Summer Engine?

> Open your existing project in Summer Engine and get AI assistance immediately. No conversion required.

## Use Summer Engine with Your Existing Project

Summer Engine works with industry-standard project formats. Open your project and continue working, with AI assistance.

## Step 1: Download and Install Summer Engine

<Steps>
  <Step title="Download Summer Engine">
    Visit [summerengine.com](https://summerengine.com) and download for Mac or Windows
  </Step>

  <Step title="Create your account">
    Open Summer Engine, click "Sign in", and create an account (Google, GitHub, or email)
  </Step>
</Steps>

## Step 2: Open Your Project

<Steps>
  <Step title="Open your project">
    **File → Open Project** (or use the Project Manager), then browse to your project folder and select the project file
  </Step>

  <Step title="Wait for indexing">
    Summer Engine automatically indexes your project (30 seconds to 2 minutes depending on size). The AI learns your scenes, scripts, and assets
  </Step>

  <Step title="Start chatting">
    Describe what you want to change. Try: "Add a health bar to my player" or "Optimize this scene for mobile"
  </Step>
</Steps>

## What Works Out of the Box

* **All your scenes, scripts, and assets**: No conversion needed
* **Third-party libraries and plugins**: Most work without changes
* **Export templates**: Web, desktop, and mobile export all supported
* **Team workflows**: Team members can use Summer Engine and the standard editor interchangeably

## Zero Lock-in

Your project files stay in standard formats. You can open the same project in the standard editor anytime. No proprietary formats, no metadata injection.

## Next Steps

<CardGroup cols={2}>
  <Card title="First AI Chat" icon="message-square" href="/essentials/first-chat">
    Learn how to use AI assistance effectively
  </Card>

  <Card title="AI Operations" icon="brain" href="/ai-tools/operations">
    Understand what AI can do in your project
  </Card>

  <Card title="Project Intelligence" icon="search" href="/ai-tools/rag-search">
    How Summer Engine understands your codebase
  </Card>

  <Card title="Migration Guide" icon="arrow-right" href="/migration/godot">
    Detailed compatibility and migration info
  </Card>

  <Card title="Summer Cloud" icon="cloud" href="/guides/summer-cloud">
    Sync your project, assets included, across machines without Git
  </Card>
</CardGroup>

***

Need help or have questions? Reach out to our founders at [founders@summerengine.com](mailto:founders@summerengine.com) or join our community on [Discord](https://discord.gg/yUpgtxnZky) for fast responses.