Greg Williams - is a video game producer. Greg Williams began his career in 1998 and has worked for companies such as n-Space, 3D Realms, Take Two Interactive, GT Interactive Software and GT Interactive. Greg Williams's first game was Duke Nukem: Time to Kill which was released 25 years ago. Best Game Greg Williams contributed to was Duke Nukem: Time to Kill. Greg Williams's latest work is Duke Nukem: Time to Kill which was released 25 years ago.