Now, this is quite lovely! I wish you the greatest luck on your game, because it looks really interesting.
I'll be sure to sign up momentarily.
Also, I think multiplayer would be a good idea, it should bring more players into the game. I enjoy being able to interact with others, I sometimes get a bit bored after awhile when doing something without someone to do it with.
But, it's your game, but I'll be happy to help you with whatever you need!