Random themed levels packed together for one reason, to entertain! Fight your way through several areas of hell even if it's not like that you will ever leave that place.. The variety of level designs try to increase the fun factor, just like the hidden ammunitions and secret areas, look for them whenever you can.
The original release of the Horror at Home addon level. It was created in 2010. It doesn't require any of the other downloads, it is standalone.
very good but very hard :)