Yes, it is a scam, they said they were going to do a lot of things but they never deliver. they have been working on the game for 4 years and all they showed off was a small town full of bugs
I don't believe it to be a scam, I think they just got way too ambitious and refuse to admit they can't deliver their original promises. I was one of the original backers (I think it was Kickstart) and I've pretty much completely forgotten about at this point because it just disappoints me.