If you need deeper integration of World Machine with your world building process, a source license might be the way to go.
You might have different needs than just using World Machine as a tool. It is possible to license the World Machine source code, either to embed into your product as a terrain creation component, or to create unique customizations for your companies' internal use.
World Machine is written in C++ and compiles with MSVC 2010 on the Windows platform.
Please contact Stephen at firstname.lastname@example.org to discuss potential licensing options and prices.