Loved the demo, I found a previous version a bit janky playing only with the keyboard, but the new option to use the mouse makes this game 10x more confortable to play!
All the ratizens are super cute and the game is quite addictive once you learned the basics, I like how all the little fellas ask you to build important things if you forgot/don't know about it, it makes the learning exponentially easier when you are already thinking about a lot of stuff to keep everyone alive.
I didn't found any game breaking glitches, although sometimes the game freaked out while in the building menu to place blocks on the world. It didn't happen everywere, but it scared me the 2~3 times it happenend.
All in all, very excited for a full release, good luck with this project!