https://www.gamesradar.com/game-devs-say-unitys-new-install-fee-is-a-threat-to-everyone-including-gamers-and-theres-no-going-back-i-dont-want-to-sell-my-house-because-my-game-was-too-popular/

Unity is messing around with their pricing structure. It wouldn't really affect small developers but it's kind of a 'straw that broke the camels back' moment for a lot of the industry.