That's an interesting project, but the tag COMPLETED is as inaccurate as these go. If this is a complete work then it's 1 star out of 5, maybe 2 for the idea. The simulator is currently highly unplayable. It allows to test the mechanics and the general idea, but it's not 'played' for enjoyment in the current form, but only fo checking what mechanics may let you do. BUT it shows a big promise, and if it's developed at least into something smoothly working (even without adding much stuff) it can go even to 5/5 stars. Thus, as I said - if it's completed and final - it's bad. If it's just a 'first release - this can be a great one in no time.