"This is the Deadside, the Wasteland, the nothing beyond the bone-backed gates. Here the true darkness at the heart of all things is made real.
What we see in death's dominion is as void as a dead man's gaze, as cold as the light from a dying star."
The Deadside is a hell-like world and is the main setting in Shadowman. The Deadside is full of the Deadsiders, Zombies and other suffering creatures. When The Shadow Man first arrives there using Luke's Teddy Bear he is to seek out Jaunty near the Marrow Gates to learn the specific gruesome details about Deadside since Jaunty has more literal advice than Mama Nettie because he is trapped there for eternity under Nettie's voodoo controll.
- In the game The Deadside is where everyone one goes without exception when they die. Michael LeRoi already knows this in the game but in the 1997 comic he didn't know that everyone on earth will always go to Deadside including his kid brother Luke and their parents.
- Instead of being water like in The Liveside everything is pools of blood in The Deadside.
- As mentioned in the 1997 comic when Mike talks to the bartender describing a "skeleton witch woman and a skull headed snake" he thinks Mike is crazy. Jaunty explains since Mike is also the Shadowman he sees things the way his mind wants to see them (through the mask of shadows) but all other mortal men see everything normally.