Doom

WEAPONS:
 * Fists
 * Chainsaw
 * Pistol
 * Shotgun
 * Super Shotgun
 * Chaingun
 * Rocket Launcher
 * Plasma Gun
 * BFG9000
 * Unmaker

ITEMS:
 * Health bonus (+1%)
 * Stimpack (+10%, max 100)
 * Medikit (+25%, max 100)
 * Soul Sphere (+100%)
 * Armor bonus (+1%, 1/3 protection)
 * Armor (100%, 1/3 protection)
 * Megaarmor (200%, 1/2 protection)
 * Megasphere (200%/200%, 1/2 protection)
 * Backpack (x2 ammo capacity)
 * Berserk (100% health, x10 fist damage)
 * Computer Map
 * Invulnerability
 * Light Amplification Visor
 * Partial Invisibility
 * Radiation Suit

ENEMIES:
 * Zombieman
 * Shotgun Guy
 * Chaingunner
 * Imp
 * Demon
 * Spectre
 * Lost Soul
 * Cacodemon
 * Pain Elemental
 * Baron of Hell
 * Hell Knight
 * Revenant
 * Mancubus
 * Arachnotron
 * Archvile
 * Spider Mastermind
 * Cyberdemon


 * Doomworld
 * Cacowards
 * The Roots of Doom Mapping
 * Top 100 Memorable Maps
 * Top 25 Missed Cacowards
 * Shooting Through Things
 * Missed? It's all Doom's fault. The blockmap bug explained.
 * It Runs Doom! - "A celebration of computer science's most violent Hello World substitute, It Runs Doom showcases all the systems that strange people have managed to get to run the popular 1993 action game Doom, among other members of the retro FPS canon"
 * "A Doom II arcade machine was featured prominently in the 1997 comedy film Grosse Pointe Blank. However, there has never been an actual arcade version of Doom. The game featured there was a custom prop built specifically for the movie, which features a character playing the game during an ongoing actual gun battle."