Chris Ashton - is a video game designer. Chris Ashton began his career in 2000 and has worked for companies such as Valve Software, Turtle Rock Studios, Barking Dog Studios, Ritual Entertainment, Valve, Sierra On-Line, Microsoft Game Studios, 2K, 2K Games and Warner Bros. Interactive. Chris Ashton's first game was Counter-Strike which was released 23 years ago. Best Game Chris Ashton contributed to was Counter-Strike. Chris Ashton's latest work is Back 4 Blood which was released 2 years ago.