When I start the game, the game screen is too large for my display. It’s also a bit unclear what I’m supposed to do. I noticed that right-clicking paints on the screen, but I don’t see a brush or anything like that. I also missed having music — it would have really given the game an extra boost.
In your screenshot, I see little characters coming out of the castles, but that doesn’t happen for me (I’m probably doing something wrong though — no worries!).