@botmark,
Thank you so much for experiencing The Living Sands! I'm aware that there are some issues related to clipping through the terrain with the player and vehicle, and it's my intention to fix those as soon as possible. As it stands, I'll make a note about that in the product description.
The objective of the game so far is to collect a relic at the center of a maze which is "inside" the tetrahedron. Pressing 'I' while in-game will bring up the hint menu, though I'll cut to the chase and just say to stand near the edge closest to the sunset and look at the point for a few seconds!
As for your suggestions, thanks for those! I had some ideas about how I wanted the atmosphere to work and these will fit perfectly into my framework. I'd also like to add a moon or a planet for some extra ambiance.
Thanks again!