Hell. Many thought of it as a mere theological concept, written in ancient scripture. A team of scientists, corporate representatives and military conglomerates one day discovered that there was so much more. On martian base, an experiment was conducted to reach into other realities. They got an alternate dimension the denizens called Hell. Perhaps it wasn’t what many considered, but Hell had come to that reality and tore it asunder. Thanks to the impossible efforts of one space marine, referred to as “The Doom Guy”, the forces were pushed out of our world… for what we hoped was for good.
Since that incident, the malevolent armies of this underworld realm have discovered other Prime Material Planes and have continued a campaign of multiversal conquest! Parallel realities and other planes entirely have faced off against these things. It has even been rumored that some of these fiendish terrors have faced off in the eternal battleground known as The Blood War.
Author’s Note: I wasn’t too satisfied with my original creations, so I decided to have a bit of a do over! On top of that, I wanted to expand the monster list a little more by adding a few essential classic creatures. Enjoy.