Unity is going to charge for installations of games using their engine

[konnichiwa]

- You are a one person dev who in hise leisure time chose to make a mobile game

-You choose to make it free to play but put some small MTX in them (0.99$ to stop ads) because well ofcourse you would like some money with it...

- After a year you get an cheque,   100k in ad revenue and MTC income, then you get an apple invoice to give them 30% cut.....

-  Surprise you also got an Unity letter.    'Dear X  We want to congratulate you for releasing an highly popular game with 4 million downloads please pay us 800.000$'...