Paul Radek provided the sound code for the Doom engine, the sound library was named DMX.

Employees Adrian Carmack • John Carmack • Kevin Cloud • Tom Hall • Donna Jackson • American McGee • Sandy Petersen • Robert Prince • John Romero • Shawn Green • Dave Taylor • Jay Wilbur • Tim Willits
Hired Associates John Anderson • Gerald Brom • Dario Casali • Milo Casali • Bernd Kreimeier • Don Ivan Punchatz • Gregor Punchatz • Paul Radek • TeamTNT • Trent Reznor