You might wanna try out the sequel. It's more economy based, but its only tech demo yet.
Viewing post in Regarding difficulty and balancing
Yeah, still haven't looked at it - I initially thought I give it some time so there is a bit of content to judge upon, but I guess it couldn't hurt looking into the technical base as it is right now. 'More economy based' sounds good to me though - I mostly play these games for its gameplay content, the adult content is just a plus.