Nice update notes! The layers preview led me to wanting to build a bunker or ditch to hide from the eagles, but the game would not let me dig out more than 1 layer at a time. Maybe the side depth view is not needed, or can be simplified to saying 4 layers until new 'Sand icon' layer? Or give the player a reason or way to traverse multiple levels.
thank you. one of the reasons I keep the player on the upper layer is to avoid some technical issues. npc pathfinding can become problematic, and the npcs' collision boxes are not the same as the player's. so if the player gets stuck inside a wall, the bird might not be able to reach the player at all. that is why I dont currently allow the player to dig down into the lower layers