The World He Once Knew - Micah Castle

Jay has been uploaded into a new body to investigate why the transporter ship Candlemass went dark fourteen days ago. After the ship's owner gives him the rundown of the assignment, he's quickly ushered on board.

In the halls of the derelict vessel, Jay discovers black sludge coating the inner hull, leading him to a container in the Cargo Bay.

If only he could have stopped there.

As Jay digs further, he's thrown into a psychological maelstrom of the ship's and, more importantly, his own history and what led him to be uploaded in the first place.

The World He Once Knew

is a transcendental, sci-fi horror novel set in the distant future. Here, the deceased's consciousness can be bought and uploaded and forced into labor. They can't quit, even if their new lives make them wish they were dead again.