Dennis Shirk - is a video game producer. Dennis Shirk began his career in 2010 and has worked for companies such as Aspyr Media, Firaxis, Aspyr and 2K Games. Dennis Shirk's first game was Sid Meier's Civilization V which was released 11 years ago. Best Game Dennis Shirk contributed to was Sid Meier's Civilization V. Dennis Shirk's latest work is Sid Meier's Civilization V which was released 11 years ago.