How are unlicensed software casinos (slots) organized?

Question

Game development

I wonder how the left cantors like Dragona, 1win, etc. organize the slots on their resource, do they redraw everything? Or is there a mechanism for stealing or something like that?

Answer 1

Yes. They just write their software from scratch

Answer 2

They can also redraw, but in general, yes, almost all carbon copy slots go, except that they change themes