Doom (1993 video game)
Because id planned to self-publish the game, as the game neared completion they had to set up the systems to sell the game. Jay Wilbur, who had been brought on as CEO and sole member of the business team, planned the marketing and distribution of "Doom". He felt that the mainstream press was uninterested in the game, and as id would make the most money off of copies they sold directly to customers—up to 85 percent of the planned US$40 price—he decided to leverage the shareware market as much as possible, buying only a single ad in any gaming magazine. Instead, he reached out directly to software retailers, offering them copies of the first "Doom" episode for free, allowing them to charge any price for it, in order to spur customer interest in buying the full game directly from id.
Linux gaming
The beginning of Linux as a gaming platform for commercial video games is widely credited to have begun in 1994 when Dave D. Taylor ported the game "Doom" to Linux, as well as many other systems, during his spare time. From there he would also help found the development studio "Crack dot Com", which released the video game" Abuse", with the game's Linux port even being published by Linux vendor Red Hat. id Software, the original developers of "Doom", also continued to release their products for Linux. Their game "Quake" was ported to Linux in 1996, once again by Dave D. Taylor working in his free time. Later id products continued to be ported by David Kirsch and Timothee Besset, a practice that continued until the studio's acquisition by ZeniMax Media in 2009. In 1991 DUX Software contracted Don Hopkins to port "SimCity" to Unix, which he later ported to Linux and eventually released as open source for the OLPC XO Laptop. Other early commercial Linux games included "Hopkins FBI", an adventure game released in 1998 by MP Entertainment, and "Inner Worlds" in 1996, which was released for and developed on Linux. In 1998, two programmers from Origin ported "Ultima Online" to Linux. A website called The Linux Game Tome began to catalog games created for or ported to Linux in 1995.