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Summer Engine MCP guide

# How to make games in Devin Desktop with Summer Engine

Connect Devin Desktop (formerly Windsurf) to Summer Engine and let it build real game projects with scene operations, Play mode, and diagnostics. Summer Engine is the desktop game engine; Devin Desktop is the agent that drives it through MCP.

$ npx -y summer-engine@latest setup windsurf --yes

Devin Desktop writes the code with your subscription. Summer Engine shows the game.

01

## Summer is free for MCP use

Download the desktop engine and connect it to your agent. You are not paying Summer for the AI calls your existing subscription already covers.

02

## Open Devin Desktop

Use the AI editor you already have. The setup command writes the MCP config and installs the Summer game-dev skills.

03

## Run a Summer game

The agent writes code. Summer Engine shows the Summer game, runs Play mode, and helps inspect errors. Export still requires the target templates and toolchains.

Install

## Connect Summer to Devin Desktop

1. 1  
### Install Summer Engine  
Downloads the desktop engine app, about 1 GB. Skip it if Summer Engine is already installed, or if you only need assets and video for a game built in another engine.  
$ npx -y summer-engine@latest install
2. 2  
### Sign in  
Opens your browser once. The CLI and the engine share the session.  
$ npx -y summer-engine@latest login
3. 3  
### Connect Devin Desktop  
Writes the summer-engine MCP config and installs the Summer game-dev skills.  
$ npx -y summer-engine@latest setup windsurf --yes
4. 4  
### Restart and build  
Restart Devin Desktop (formerly Windsurf) and refresh MCP servers from the agent settings. Devin's docs say mcp\_config.json configures the Cascade agent; for the Devin agent add the server in the app's MCP settings with the same command.

Why this matters

## Devin Desktop writes with your subscription. Summer Engine shows the game.

A chat agent alone can write files. With MCP, Devin Desktop gets tools for the running game engine, so it can inspect the project, run commands, and make changes that become playable inside Summer.

Other setup guides

## Start with Devin Desktop. Build inside Summer.

Install the desktop app for free, run the setup command, and make your first scene playable.

[Download](https://www.summerengine.com/download)

[Docs ](https://docs.summerengine.com/mcp/overview)

Source: https://www.summerengine.com/mcp/how-to-make-games-in-devin-desktop

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## Machine-readable resources

- Site index for agents: https://www.summerengine.com/llms.txt
- Full inlined content: https://www.summerengine.com/llms-full.txt
- Porting catalog: https://www.summerengine.com/llms-porting.txt
- Structured catalog: https://www.summerengine.com/agent-catalog.json
- Sitemap: https://www.summerengine.com/sitemap.xml
- Developer resources: https://www.summerengine.com/docs