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 (2016 video game)
It was the second best-selling retail game in its week of release in the UK, behind "". This was reported to be 67% more in its first week than the previous entry, "Doom 3". "Doom" was the second best-selling retail video game in the US in May 2016, also behind "Uncharted 4". By the end of May 2016, "Doom"s sales on the PC reached 500,000 copies. The following month, by late June 2016, the game rose to number one in the UK charts, overtaking "Uncharted 4" and the later-released "Overwatch", and remained number one for a second week. The game had surpassed 1 million sold copies for PCs in August 2016. By July 2017, the game reached 2 million copies sold on PC. In November 2017 "Doom" was the fourth best-selling Switch game, during its debut week.