Summer Engine
AI-native desktop game engine, compatible with Godot 4
Overview
Summer Engine is a desktop game engine with a built-in AI assistant that builds games from plain-English requests and writes reviewable GDScript. Paid plans add hosted frontier models and generation of 3D models, images, audio and video.
Good for
Key features
- Build games from natural-language requests
- Reviewable GDScript output
- Compatible with Godot 4
- Asset generation: 3D, images, audio, video
- MCP connection for outside agents
Pricing
| Plan | Billed monthly | Billed yearly | Notes |
|---|---|---|---|
| Free | Free | — | |
| Pro | $20/mo | — | |
| Pro+ | $60/mo | — | 3x usage |
| Ultra | $200/mo | — | 20x usage |
From our research of the official pricing page; not yet confirmed by an automatic check. Our latest automatic check (6 Oct 2026) couldn't read the page, so check it before you buy. Prices in USD per month: the only currency the page showed us, so UK prices may differ. A dash means that billing option isn't shown.
Free tier
Free app with limited hosted AI, manual game creation and export, and MCP connection.
Alternatives to Summer Engine
Change timeline
Every change we've confirmed on the official pricing page: prices, plans, the free tier and restrictions. Each one was seen on two checks in a row.
No changes since tracking began; last checked 6 Oct 2026. We re-read the pricing page every day.
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