i like the concept and how the foot steps changes according to the terrain, i found some interesting spots in the map.
sometimes is easy to get lost, i'm not sure whats the best solution for this maybe:
- keep the map and the navigation in 2d (left-right)
- a key to to mark a zone in the map where do you want to go and have some wind sound taht guides you to the right spot.
i hope you keep working on this, looks interesting!