Bleak Warrior by Alistair Rennie
What is the purpose of your existence?
For eons, the ancient and powerful Meta-Warriors have betrayed, despoiled, and slain each other in a relentless pursuit of total mutual destruction.
When BleakWarrior suddenly grows tired of the senseless killings, he begins a new mission to discover the truth of his condition.
Of who and what he is. Why he exists….
Descend into a world of dark metaphysics, ultra-violence, senseless mayhem, and transgressive sex with a simultaneously brutal and brilliant fantasy novel unlike any other.
"Transgressive and hard-edged" - Jeff VanderMeer, Nebula award winning author of the Southern Reach trilogy