Why do people make fangames?

[yamina-chan]

They are also trying to get it so fanart and fanfiction cannot be made anymore as well, so soon doing that for games or series or books, will be illegal and you will face legal action. Some kind of law that the biggest companies want, I do believe.

Who is "they"?
Besides, that would be really stupid idea to do that becuase these play a major role in making a fandom more popular and keeping people talking about it (Thus more people know about, more people will buy it, more people will tell it to other people etc.). Which is also the reason why many Japanese companys not only allow but approve Doujinshi and encurage people to draw and write about something. Other countrys do that as well.
I have heard about single authors who don't want that and fine, let's respect that but the reactions of the fans are usually negative and the fandom is unable to grow as others that have such support by the fans.
That a game company doesn't want their game to be remade (possibly better) and avalible for free or anything not approved by them to be sold is understandable. Sad for the fans to some degree, but still.