Robert A. Duffy - is a video game programmer. Robert A. Duffy began his career in 1999 and has worked for companies such as id Software, Aspyr, Bethesda Softworks, Activision Blizzard, SEGA and EA Games. Robert A. Duffy's first game was Quake III Arena (1999) which was released 21 years ago. Best Game Robert A. Duffy contributed to was DOOM 3. Robert A. Duffy's latest work is DOOM 3 which was released 17 years ago.