UE4 Real Big World. Real Roads OSM, Real Buildings, Real Landscapes

This should answer your question -

You can sell games but you need to keep the OSM data open. Same applies to freeware I would assume. :slight_smile:

Keep in mind that OSM data does not mean 3D Models, 3D Roads or Terrains it just means the data used by OSM to generate such things.

That is how i translate it. I am also not a lawyer.

Further expanding on it - I have dug into the license and here is what is said about commerical stuff

That is from Section 3.0

Edit:

That said - The folks over at BitBunch are using OSM and SRTM data extensively in their custom engine according to their blog - http://bitbunch.eu/dev-blog-5-world-enough/