Thank you so much for playing and giving your honest feedback. It helps a lot.
I imagine there are still some bugs, that I haven't encountered yet, so thank you for pointing them out.
The game is not well-optimized for browsers, as it is supposed to be a PC game. But I made the demo build for those who want to try it without downloading.
I'm glad that you liked the game overall and I will try to improve it, based on your suggestions.