The Doom source code was eventually released under the GPL license by id Software, that's why you can download the DOS version here for free and ports simply keep on coming.ĭoom cemented basic shooter weapon archetypes in video games: the pistol, the shotgun, the automatic rifle, and the rocket launcher, and as such most shooter design can be traced, in some way, back to it. Doom was first released on Decemby id Software.ĭoom is one of the most widely ported video games in the FPS genre: starting with the original MS-DOS shareware version, it's been released officially for seven computer operating systems, nine video game consoles, two handheld game consoles, and one cell phone. It introduced features such as 3D graphics, true 3D spatiality, networked multiplayer gameplay, and support for player-created expansions. Doom is a pioneer and classic game of the first-person shooter genre.