Modanung Dear Modanung.
I've linked everything relevant in regard to the definition of free software according to the FSF and RMS here. Both GemRB and OpenMW qualify as free software, and free software is a sort of thing this forum is about. Also, both are linked on the adjacent free game planet.
The thread there got locked over our debate. I don't want this thread to be derailed as well, it is unfair as fuck towards the OPs. Also, The OP here did not even use the term that you try to redefine ("libre"), but OpenSource.