That's not how it always has been. Licensing engines was virtually unknown 30 years ago (and when it happened at all it was within a very narrow range for makin

That's not how it always has been. Licensing engines was virtually unknown 30 years ago (and when it happened at all it was within a very narrow range for making games in the same genre, more like asset swaps and level packs than outright new games), and new and exciting in the '00s.