Crooked Stars by Rock Forsberg (A Shades Universe Novel)

They took away his sight, his hearing, his feeling, and his body. But he got to keep his brain-a fully operational CPU with a nerfed IO.
Daler Tait is the youngest of three sons of a mining mogul on a desert planet in the far reaches of the galaxy. He has big ambitions and little patience, but to please his parents, he plans to apply to the Academy of Virtuous Knowledge.
But when his father is murdered, his plans crumble like sandcastles. Daler swears to find the killer and avenge his father. He seeks help from a galactic criminal organisation and is soon light-years from home, growing up by learning the ways of the underworld.
Soon there's blood on the sand, blood in the vacuum of space, and blood on his hands.
As the years go by, the ghosts of his the past grow stronger. On the verge of paranoia, with little to win and the universe to lose, he must face his ultimate tormentor.
Sometimes death...

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