The effects and UI were really top notch, really unique idea with the various overlays.
On the first night, I tried to retraced my steps, but eventually got the a pitch black area without green arrows and I wasn't sure where I am, and than my shelter got destroyed.
On my second attempt I tried to get back to the shelter before the night and it went much better. I think you don't really see the shelter if there is no green arrow on top of it? At some parts of the island I could see fade traces. The trace idea was nice, but I think making it a little easier would be helpful
Also, the idea of collecting wood and energy just to survive is fine basis, but it was missing some development and audio for me to want to try more nights
Really good job with the effects, great base for a game