Team Fortress 2's  fourth-annual "Scream Fortress" festivities have begun, bringing with  them the usual blend of spooky items and ghastly baddies. This year's  event, which runs until November 8, is also accompanied by a 
now-customary comic book, which explains how such terrifying circumstances came to be.
Said circumstances include 
haunted King of the Hill matches, during which players must battle the powerful ghost/wizard Merasmus and his book of bomb magic, the 
Bombinomicon.  Additionally, control points have been booby trapped and now trigger  the "Wheel of Fate" with each change in power, which has as much  potential to harm as it does to help.
Item-wise, the ghoulish  update adds magic spells in the form of potion bottles that can be  applied to other inventory items; changing their colors, summoning  ghosts or performing any number of other possible magical happenings.  "One of the spells might even give you Glenn Danzig's eldritch phone  number," Valve's 
announcement reads.
Mann  vs Machine isn't left out of the fun either, gaining a brand-new  mission called "Wave 666," which replaces the usual robotic enemies with  those of an undead variety.