No Sight.
No Sound.
No Taste.
No Touch.
No Scent.
No Balance.
Zero Senses.
No fingers, no toes.
A hideous, translucent shambler moving across the deserted world. If one were to gaze upon it, they would regret it. A mass of organs and skin made for labor, and eventually for a body to be used.
By this unremembered time period, the DNA sequence of certain beings could be altered in a relatively simple manner. Memories could be transferred to blanks, and the blanks were shaped into a pleasing form. The old bodies were recycled into blanks, and unused blanks were controlled through machinery to perform labor.
As one can guess, this went horribly, horribly wrong, and most of the blanks and humans were wiped out. The remaining blanks were called shamblers by those who still had their sanity. The metamorphisis machines were taken over by rogues, and they made the shamblers into monsters under their own control. Earth was ruled by evil, and there was no hope.
Until a previously unknown blank was found by a wanderer.