There is no way they can legally enforce retroactively charging. How the fuck is that even possible or legal?
Depends what is in the contract. If the contract says devs on are the hook for any future fees they deem necessary, then the devs are on the hook. Unless they want to pay a lawyer big bucks to take on the company behind Unity with their billions of dollars of revenue and the lawyers that buys. How many indie devs do you think can afford to do that?
Not just indie devs bro
Pokemon is made in unity
Hearthstone too
For anyone interested to sign I found this petition against the new fee. https://chng.it/kYpqWBBHbB
Hoping with all the backlash Unity is forced to role it back. Thank you to everyone posting alternatives, I will be checking these out :)