[pjmlp]

Then buy Unity's source code license.

[Jasper_]

Unity doesn't have a single source code license or price. It's negotiated per-contract and usually has strings attached (e.g. be the first to ship this tech, attend UnityCon and give this demo). They only do it for big companies as well.

[pjmlp]

I know, that is anyway what I am used to in corporate sales.