On June 22, 1996, the release of "Quake" marked the third milestone in id Software history. "Quake" combined a cutting edge fully 3D engine, the "Quake" engine, with a distinctive art style to create critically acclaimed graphics for its time. Audio was not neglected either, having recruited Nine Inch Nails frontman Trent Reznor to facilitate unique sound effects and ambient music for the game. (A small homage was paid to Nine Inch Nails in the form of the band's logo appearing on the ammunition boxes for the nailgun weapon.) It also included the work of Michael Abrash. Furthermore, "Quake"'s main innovation, the capability to play a deathmatch (competitive gameplay between living opponents instead of against computer-controlled characters) over the Internet (especially through the add-on "QuakeWorld"), seared the title into the minds of gamers as another smash hit.