Richard Kriegler - is a video game artist. Richard Kriegler began his career in 2007 and has worked for companies such as Infinity Ward, Raven Software, Treyarch, n-Space, Activision Blizzard, Activison, Aspyr, Square Enix, Active, Activision and Beenox. Richard Kriegler's first game was Call of Duty 4: Modern Warfare which was released 13 years ago. Best Game Richard Kriegler contributed to was Call of Duty 4: Modern Warfare. Richard Kriegler's latest work is Call of Duty which was released 2 years ago.