Every tier lets you build commercial products with Meep — games, simulations, visualizations, internal tools, anything in that family. You get the full source via the npm package. There are no binary blobs.
Paid licenses are one-time, per project. The fee covers every major version of the engine released within 24 months of your purchase, and every covered version stays yours forever — your project never loses access to a version it once had. Indie and Standard differ only in the funding ceiling of the project they cover; Enterprise is a tailored contract.
The one restriction worth flagging here is the non-compete: you can't use Meep to build a derivative game engine, ECS framework, or engine-like product that competes with Meep itself. That's it. If you're not sure whether your project falls inside or outside that line, email us for a written read before you sink time into it.
If a project's funding grows beyond your tier's ceiling, you can upgrade for the price difference — no double licensing, the same project moves up. Support is sold separately as an annual add-on; the license itself stays a clean one-time purchase.
Specific contract language — coverage window dates, project description, fees, governing law — is delivered with your license file. For legal teams that want to evaluate before engaging, the full Standard Tier sample license is published on this site. Pricing →