The game is really easy to control the player, it is good using for it. The greybox here also not bad. I am looking forwards your further developing.
However, there are also some problems here very bad effect on UX. The size of gaming windows do not be adjustment. Not only that, the location of the UI panel also make mistake, it hidden the house back here. So you can put it the center of the windows, that may can improve your UX