In the year 1993, id Software released the video game Doom for the computer. It is recognized as one of the most popular first-person shooter games ever created. For its time, it had amazing 3D graphics, plus expansion packs, and two multiplayer modes available to the player. The game had such an impact that many first-person shooters created during the mid 1990’s were dubbed “Doom Clones” by the fans.

After the success of the first game, the sequel, Doom II: Hell on Earth was released in 1994. Numerous expansion packs including The Ultimate Doom and Final Doom were also released around the same time. Although the popularity of the Doom franchise decreased during the mid 1990’s due to advancements in video game technology. It quickly regained it status with the release of Doom 3 in 2004.

The plot of Doom is based on a simple horror and science fiction theme; short messages are provided to the player between the episodes to advance the storyline. The player acts as a nameless marine working for the Union Aerospace Corporation after being deported to Mars for assaulting a senior officer. The Union Aerospace Corporation or UAC is a secret military company performing experiments between Mars’ moons, Phobos and Deimos.

At the start of the game, the player is given a pistol with limited ammunition and a pair of brass-knuckled fists in case the ammunition runs out. As the game advances the player is offered more powerful weapons to use. These weapons include a shotgun, a chainsaw, a chaingun, a rocket launcher, a plasma rifle, and the most powerful, a BFG 9000. Along with weapons, an array of power-ups and special items are spread out through the game world for the player to pick up. Health kits, armor, backpacks to increase carrying capacity, a berserk pack which increases damage inflicted with fists, and Soul Spheres, blue orbs that increase the health percentage to a maximum of two hundred percent are available.