Thanks for the feedback! Yeah, we definitely needed to add some sort of tutorial because it wasn't obvious what you are supposed to do (something that really impressed me in your game by the way!). Also, accidentally placing a light after mining was a definite issue. Given more time we definitely would have fixed that annoying part. Also, appreciate the feedback with the confusion trying to click the buttons in the bottom left corner and accidentally buying upgrades when a button was over a valid tile. I honestly didn't run into that problem while play testing, so that's really valuable. Thanks again for playing!