The Doom Series of novels are set within the same universe of the Doom video games, created by ID Software. Like the games the books are primarliy written from the first-person perspective of a soldier in the United States Marine Corps - although protanogists in the later novels do differ.
The world is indeed comic, but the joke is on mankind.
SFBook is entirely funded by Ant including hosting, development and any other costs.
If you enjoy the site please consider a small donation towards the cost of the upkeep and development of SFBook.