I like the game until bugs started apearing every where. I understand its free atm. But once you start getting into and understanding how things work everything stops working like it should. The basic tutorial works fine. After you build the reseach lab things start getting flaky. And when you save it gets REALLY BAD. Especially when you reload a save. After saving and reloading things are missing, cant connect new devices and some devices that were connected are no longer connected and cannot reconnect them even after upgrading tower and building a pylon before saving. When I built the Pylon it never appeared if there was something to appear. After save and reload snow mobil disappeared as well. I also experienced the object falling thru the floor as well. Not complaining at all here. Just observation as to what I experienced. I downloaded the game today from the main page. I assume it is the latest version.