Tristan Reidford is conceptual artist for Valve.
For Valve, Reidford specifically worked with Ted Backman and Jeremy Bennett on concept art for Half-Life 2: Episode Three, showing an Gordon Freeman confronting an Advisor, which was selected for the 2008 Into the Pixel Collection.
- TimeSplitters 2 (2002)
- TimeSplitters: Future Perfect (2005)
- Portal (2007)
- Half-Life 2: Episode Two (2007)
- Left 4 Dead (2008)
- Left 4 Dead 2 (2009)
- Alien Swarm (2010)
- Portal 2 (2011)