Development of Doom
"Doom"s original release date was the third quarter of 1993, which the team did not meet. By December 1993, the team was working non-stop on the game, with several employees sleeping at the office; programmer Dave Taylor claimed that working on the game gave him such a rush that he would pass out from the intensity. Id began receiving calls from people interested in the game or angry that it had missed its planned release date, as hype for the game had been building online. At midnight on December 10, 1993, after working for 30 straight hours, the development team at id uploaded the first episode of the game to the internet, letting interested players distribute it for them. So many users were connected to the first network that they planned to upload the game to—the University of Wisconsin–Parkside FTP network—that even after the network administrator increased the number of connections while on the phone with Wilbur, id was unable to connect, forcing them to kick all other users off to allow id to upload the game. When the upload finished thirty minutes later, 10,000 people attempted to download the game at once, crashing the university's network. Within hours, other university networks were banning "Doom" multiplayer games, as a rush of players overwhelmed their systems.
Doom 3
A re-release of "Doom 3" called "Doom 3: BFG Edition", published by Bethesda Softworks, was released on October 15, 2012, in Australia, October 16, 2012 in North America and October 19, 2012 in Europe. The "BFG Edition" features enhanced graphics, better sound with more horror effects, a checkpoint save system, support for 3D displays and HMDs, and the ability to use the flashlight while holding a weapon, in the form of the so-called "armor-mounted flashlight". Also included are the previous expansion pack "Resurrection of Evil", a new single-player expansion called "The Lost Mission", and copies of the original "Doom" (the "Ultimate Doom" edition with the add-on fourth episode, "Thy Flesh Consumed") and "" (with the expansion "", previously available for the Xbox 360). The versions of "Doom" and "Doom II" released with the "BFG Edition" have undergone some degree of censorship. PC versions of "Doom 3: BFG Edition" other than the GOG.com release require the Steam client and a valid Steam account for installation, play and achievements.