Heretic is a fantasy first-person shooter video game created by Raven Software, published by id Software, and distributed by GT Interactive in 1994. It was made available on Steam on August 3, 2007.
Using a modified Doom engine, Heretic was one of the first first-person games to feature inventory manipulation and the ability to look up and down. It also introduced multiple gib objects spawned when a character suffered a death by extreme force or heat. Previously, the character would simply crumple into a heap. The game used randomized ambient sounds and noises, such as evil laughter, chains rattling, distantly ringing bells and water dripping in addition to the background music to further enhance the atmosphere. All music in the game was composed by Kevin Schilder. A sequel, Heretic II, continuing the story, was created in 1998.