Can u tell m what engine u use i wanna start make some short game and learn some engine and ur game looks really nice and clean but i dont know where i can start :)

The two selections at the bottom don't work on a controller. You see them in the levels list when selecting a level. I have to use the keyboard for them. The controller seems to work with everything else. I use dualshock 4 controller with a cable.

I just bought the game after enjoying the demo. I completed the first 5 levels in the full game, not a single achievement is activating. If I go to steam overlay, I can't select achievements to see the list. If I look at my library before pressing play, it doesn't show me the achievements on the right side. Where are they? The game clearly has them based on the store page but it's like they don't exist in my game....

Some of these levels look like they were directly taken from TotM

How much levels does the full game have compared to the demo?