I am a member of the team modmakers. After a few simple modifications, we decided to go for something more global. This "global" was the addon "Wild West". It was planned that it will be some sort of DLC at the beginning of the Mojave Wasteland. But later it grew and evolved into a full game in the universe Fallout, with many modifications and resources F3 and NV.
So the question is: Is is legal to create such a "game" that will include resources games but not require them?
The most remarkable thing here is that will be implemented, the classic system of travel.