Game Industry Vet here. Unfortunately middleware or tools for gaming have gone to the 0 margin, free area. Mainly because 99% of game generally don't make much money so people dont invest heavily. Those 1% that do make a lot of money tend to invest in the their own tool development or want to retain control of their middleware hence less money in the pot.

Another interesting point, IMO, is that game development attracts very capable developers. Thus they tend to be very adept at finding things for OS instead of forcing the company directors to buy large licences for convoluted software they don't need :)