Sierra Entertainment
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Sierra Entertainment, Inc. was an American video game developer and publisher founded in 1979 by Ken and Roberta Williams. The company is known for pioneering the graphic adventure game genre, includi
On-Line Systems' first office was a small space leased at the back of Ponderosa Printing.
Jim Henson with Ken Williams, promoting The Dark Crystal game, inspired by Henson's 1982 fantasy film
Sierra On-Line expanded into a larger headquarters in the early 1980s.
During the 1980s, the company emphasized developing and expanding popular franchises like King's Quest, Leisure Suit Larry, and Police Quest.
Roberta Williams
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Roberta Lynn Williams is an American video game designer and writer. She has been named by several publications as one of the best or most influential creators in the video game industry.
Sierra Entertainment
…Entertainment, Inc. (formerly On-Line Systems and Sierra On-Line, Inc.) was an American video game developer and publisher founded in 1979 by Ken and Roberta Williams. The company is known for pioneering the graphic adventure game genre, including the first such game, Mystery House (1980). It is known for its graphical…
Roberta Williams in 2024
Ken Williams, Roberta's husband and co-founder of Sierra
Advertisement from the June 1981 issue of The On-Line Letter for some Hi-Res Adventure games, including Mystery House and The Wizard and the Princess
Roberta Williams on the cover of the Fall 1989 edition of the Sierra Magazine