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.
Duke Nukem (character)
Duke Nukem was initially created in 1987 by chief programmer Todd Replogle of Apogee Software (now 3D Realms) as the protagonist for the video game he was designing titled "Metal Future," which was set in the then-near future of "one decade later from now" in 1997. After hearing the character's name, producer and founder of Apogee, Scott Miller, suggested the game should have the same name, and he helped design the character. Artwork was produced by George Broussard, Allen H. Blum III, and Jim Norwood. Duke was not voiced, but spoke through on-screen text.