Heretic
A heretic is a person guilty of heresy.
Heretic is the title of an album released in 2003 by american death metal band Morbid Angel.
Heretic is a first-person shooter video game created by Raven Software, published by Id Software, and distributed by GT Interactive in 1994.
Using a modified DOOM engine, Heretic introduced the inventory manipulation feature on the FPS genre, while enabling an up and down viewing system as well.
In 1999, the source code of Heretic was published by Raven Software.