A fun way to incorporate platforming with creativity and simulations/RPG-type-things. It would be nice if there was a non-mandatory tutorial, to explain further on certain things, like a question mark here and there to help explain concepts, like why the Market Analysis is important (I didn't get that right away, but it could just be me), and why Luxuries are important. Another thing that could be explained a little more is how to go from a Small, to Medium, and Large map, although I understand this is just a demo.
Another thing I'd like to say is that if you accidentally fall into a hole or something and you cannot get out, the only way around that is to reload the page. But ah, ahem, who would fall into a hole, amiright? Ha...
And the News section should be expanded on, since it's seemingly only used for the tutorial thus far, but I feel like that area has a lot of potential. This is an idea that could've turned out crap, but you made it very well and the graphics are pretty nice too. And, if you just want to play platforms, you can buy the other games, which is also nice.
Although I feel that it'd probably be expensive or something, it'd be cool if this were to become a multiplayer thing, if it isn't already, so that the other games are made by other players as well.
It's so far well executed, but still has a lot of potential. All in all, great job!