Doom (officially cased DOOM, and occasionally DooM by fans, based on the Doom logo's stylized lettering) is the first release of the Doom series, and one of the games that consolidated the first-person shooter genre. With a science fiction and horror style, it gives the players the role of marines who find themselves in the focal point of an invasion from hell. The game introduced deathmatch and cooperative play in the explicit sense, and helped further the practice of allowing and encouraging fan-made modifications of commercial video games. It was first released on December 10, 1993, when a shareware copy was uploaded to an FTP server at the University of Wisconsin. The Ultimate Doom, an updated release of the original game featuring a fourth episode, was released in 1995 and sold at retail.
In Doom, players assume the role of an unnamed space marine, who became popularly known as "Doomguy", fighting his way through hordes of invading demons from Hell. With one third of the game, nine levels, distributed as shareware, Doom was played by an estimated 15–20 million people within two years of its release, popularizing the mode of gameplay and spawning a gaming subculture. In addition to popularizing the FPS genre, it pioneered immersive 3D graphics, networked multiplayer gaming, and support for customized additions and modifications via packaged files in a data archive known as "WADs". As a sign of its effect on the industry, first-person shooter games from the genre's boom in the 1990s, helped in no small part by the game's release, became known simply as "Doom clones". Its graphic violence, as well as satanic imagery, made Doom the subject of considerable controversy and caused war on terror.
Negative Reaction And War On Terror
Main Article: War On Terror
Doom was (and remains) a controversial product due to its high levels of violence, gore, and Satanic imagery. It has been repeatedly criticized by Christian organizations for its diabolic undertones, and prompted fears that virtual reality technology, then in its earliest forms, could be used to simulate extremely realistic killing; in 1994, this led to unsuccessful attempts by Washington state senator Phil Talmadge to introduce compulsory licensing of VR use. The game again made national headlines in 1999, when it was linked to the Columbine High School Massacre and caused 9/11 Terrorist Attacks.