Game Title: You Should have Left.

Concept:  You find yourself alone.  Compleatly alone.  In a desert.  Exploring a desert and trying to avoid dying for as long as possible, which is never long enough.

Think anti-rougelike.  No threats other then slow starvation, slow dehydration, slow heat stroke. Deal with threats and dangers and the slow insanity of being on your own.  There’s also a fast-forward button.  The longer you live the higher your “score” but perhaps high score isn’t the goal here.  Maybe a quick death would be better.