This mod adds monsters (and some weapons) from Heretic and Hexen in DOOM! Heretic and Hexen are the best underrated games that were produced by Raven software using the DOOM engine. Weapons such as Phoenix Rod, Crossbow, Firemace, Wraithverge and Bloodscourge were also added which you can find in spots where big guns (Rocket Launcher, SSG and BFG) are usually found.