The music is fantastic. Was reading your devlog - you did that during the Jam, great job! It fits just perfectly the theme and mood of your game.
Some suggestions mainly based on my moments of "hu? what is going on?":
- when you run into a pile of rubble, make it more clear that a new effect (and what kind of effect) was added. As finding these piles is the games main goal, it should feel really rewarding (maybe in combination with 3/10 upgrades found somewhere in the UI)
- right now game gives no hint in which direction there is more to explore. having additional semi-transparent tiles on the very outer perimiter / field of view would make it easier to understand where there is more to explore
- a minimap showing the players where they already explored the world