The Magenta Spire is a partial conversion mapset taking place in parallel to the events of Doom 1; albeit on a much more remote planet. Much too far for any hope of "backup" arriving from Earth. A lone UAC communications technician must find a way to survive the onslaught of demonic forces invading the remote research complex. A shuttle off of this rock, a big gun, or maybe a bomb shelter to hide and weather the storm. The walls of every installation are coming down and the monsters seem to have brought their own reality with them.