single participant recreation with mmo like development

hey everybody

i'm having alot of enjoyable with premium video games, by no means thought that i can have this expertise on cell

however i'm lacking one kind of recreation to complete my assortment

i want a recreation with development system much like mmos

farm mobs, improve gear, get higher gear. ability tree and such

i attempted ronin the final samurai recently and it’s kinda enjoyable with good programs nevertheless it is filled with adverts/microtransactions and the vitality system makes it unplayable

i'd want a paid recreation

drop your suggestions and ty upfront