Duncan X is the nickname used by a developer with an extensive history in the game industry, mainly with positions in design, at companies such as Valve L.L.C.
(1996-1998), Surreal Software
(1998-2001), Sandlot Games
(2001-2003), Escape Factory
(2002-2003), Amaze Entertainment
(2003-2004), Gastronaut Studios
(2004), and PopCap Games
Between 2002 and 2005 he was a faculty advisor at the Art Institute of Seattle, and between 2005 and 2008 he worked for Microsoft
Currently he is the Creative Director at Sabi Games
, a development studio he co-founded in 2008.