Love the visuals for this one, It looks so pretty!
The only thing I would have preferred is if the area was a little smaller, it felt vast and it was easy to get turned around. I wonder if adding a sprint could help too, it would allow you to travel faster but would raise your temperature and make you thirstier more quickly.
It would be cool to see some desert animals added too, to draw your eyes to their movement as you explore.
Overall it was fun with a great "mystery" feeling . Great work!