Hey, I'm sorry: Your game looks like it's very cute and interesting, however my laptop is literally using 100% of it's memory and about 50% of the time I get a fatal error when I try to open a new game...
I won't rate your game, since I haven't really played it, but please consider tuning some memory down be having lower default graphic settings and unloading some of the terrain while you are not looking at it!
I see that you are ambitious and definitely keep that up (but please consider the gamers without hardware from the last 3 years)