Moonrise2473, rok temu

How can be retroactive?

I mean legally. The devs agreed to a contract, it can’t be changed with different economic terms later

If someone published an Unity game 4 years ago, has now abandoned the project, doesn’t release any update, why needs to pay a per install fee “for supporting the runtime”? The version is now ancient. I could understand if it was “from version xx.yy”