Each time you die, a tree will grow out of your reamins, offering the next wanderer a nice shadowy place to rest.
On the other hand this will lead to a constant „greeening“ of the desert with each one that tried.
Another advantage is, that this death give the player less water loss, which equals a water potion, except that it is there for everyone! ->community advantage
These trees will shrivel after some time, but the remains will remain there.
If enough people die in one area a new oasis is born.