John Cash - is a video game programmer. John Cash began his career in 1996 and has worked for companies such as id Software, Williams Entertainment, TeamTNT, Casali brothers, GT Interactive Software, GT Interactive, SoftBank, GT Interactive Software Europe, Valve Software, Gearbox Software, Valve, Sierra On-Line, Sierra Entertainment and Sierra Online. John Cash's first game was Final DOOM which was released 27 years ago. Best Game John Cash contributed to was Final DOOM. John Cash's latest work is Half-Life which was released 25 years ago.