“Loop Desert” by Giovanni Cappellotto.
“You must survive the […] [d]esert[,] trying to reach the city before you run out of water. Choose wisely the right direction. You will find two bottles of water on your path to help you reach your destination, but only one can save your life.”
“Loop Desert” is a charming, short puzzle game, in which I felt a bit genius when I recognized the solution. >>PLAY