Commercial use › Summer Engine
Can I use Summer Engine commercially?
Free tier: commercial use allowed.
Paid plans: commercial use allowed.
Checked 2026-10-15 · licence verification: verified. This summary simplifies the vendor's own wording below. It is not legal advice.
What the vendor's terms say
| Free tier | AI Terms s.4.1: Summer assigns to you its rights (if any) in Generated Content; terms do not differ by plan |
|---|---|
| Paid | Same; subject to the platform licence and third-party rights |
| Free tier includes | Free app: editor, manual export, MCP connection to your engine |
| Paid price (as shown) | Pro $20/mo; Pro+ $60/mo; Ultra $200/mo |
AI Terms effective Sep 28, 2026. Games published on Summer's platform with Modding enabled trigger a 'Network Share' obligation (s.4.4).
Steam AI disclosure
If AI-generated content from this tool ships in your game or its store page or marketing materials, Valve's content survey asks you to disclose it. Read the Steam AI disclosure guide.
Sources
FAQ
Can I use Summer Engine output commercially on the free tier?
Commercial use allowed. Licence text (free tier): AI Terms s.4.1: Summer assigns to you its rights (if any) in Generated Content; terms do not differ by plan. Checked 2026-10-15.
Can I use Summer Engine output commercially on a paid plan?
Commercial use allowed. Licence text (paid): Same; subject to the platform licence and third-party rights. Paid price as shown: Pro $20/mo; Pro+ $60/mo; Ultra $200/mo.
Do I have to disclose Summer Engine use on Steam?
If AI-generated content from this tool ships in your game or its store page or marketing materials, Valve's content survey asks you to disclose it.
Full Summer Engine pricing and changelog · Tools you can ship with no attribution
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