Roberta Williams | Code Like It's 198x

In 1979 Roberta Williams was, in her own words, “a housewife with two kids”, and she had never designed anything. Then her husband Ken brought home a text adventure, Colossal Cave, and she played it until she had reached the end. When she went looking for more, she found only a few Scott Adams games, so she wrote her own: a murder mystery in a house full of guests, with a picture on the screen for each place. Mystery House launched the company that became Sierra On-Line. For the next two decades she designed its best-known adventures, from King’s Quest to Phantasmagoria, and in 1999 she reckoned she had made 18 games in 18 years.

Fast facts

Born: 1953.
Company: co-founder, with Ken Williams, of On-Line Systems (1980), later Sierra On-Line.
First game: Mystery House (1980), on the Apple II.
Best known for: the King’s Quest series (1984–1998), The Colonel’s Bequest (1989), Mixed-Up Mother Goose and Phantasmagoria (1995).
Later: Colossal Cave (2023), a 3D remake of the game that started her career, from the Williamses’ company Cygnus Entertainment.

Mystery House

Roberta Williams told the story to START magazine in 1990. Around February 1980, at a restaurant in Simi Valley, California, she described her game to Ken, a programmer who had worked on IBM mainframes. “He didn’t want to listen — he thought it was silly. I insisted and he finally heard me out.” The other adventures were all text, so they decided to add pictures. There was no graphics software for their Apple II, so they bought a VersaWriter, a drawing board with an arm that traced a picture into the computer, and Ken wrote a program to read it. Roberta drew the pictures herself: the game needed “at least 60”. She decided the player would always face north, east or west, never looking back.

Ken wrote the program, and Roberta the story. Mystery House came out in May 1980, and Ken later called it “the first adventure game with graphics”. Later writers credited her with the same thing: START called it “the first graphic adventure ever made for a personal computer”, and Computer Gaming World wrote in 1996 that Roberta “created the first graphic adventure”. The couple published it themselves as On-Line Systems, and its successor, The Wizard and the Princess, added colour. The Sierra entry follows how the company grew from there.

Time Zone

Her fourth game was her biggest. Time Zone (1982) sent the player through history from prehistoric times to the far future, on six double-sided Apple II disks at $99.95. It had 1,300 rooms, where the average adventure then had 50 to 100. She spent six months writing the design, then eight more working with the programmers and artists, and she did the research herself, telephoning the library to find out where Napoleon had lived.

Computer Gaming World interviewed her on 2 April 1982, just after it came out. She was clear about her role: “Sometimes I feel that people don’t think that I’m as much a part of the creative process as I claim, due to the fact that I don’t program.” Designing, she said, was “the most important and creative part of the project”. She also admitted to one error: a rhea, a South American bird, living in Australia, because the Los Angeles Zoo had put it in with the kangaroos. Asked about a sequel, she laughed: “Never! I am burned out on adventure games.” After two years and four games, she felt the project had been “akin to making an epic movie”, and “you just don’t make sequels to things like that”.

King’s Quest

She was not burned out for long. Sierra went on to make The Dark Crystal with Jim Henson’s company, and in 1984 came King’s Quest, the game IBM commissioned to show off its PCjr. Roberta wrote the story from fairy tales, and a team of programmers and artists built an adventure in which the player walked a knight, Sir Graham, around an animated kingdom, while still typing commands. The PCjr failed, the Tandy 1000 rescued the game, and King’s Quest became a family saga that ran to eight games by 1998. The King’s Quest entry covers each one.

Her games told their stories through women more often than most. King’s Quest IV (1988) made Graham’s daughter Rosella the hero, and The Colonel’s Bequest (1989) was a murder mystery set on a Louisiana bayou in 1925, with a college student, Laura Bow, as the detective. “I always like to look and see what people aren’t doing,” she told Sierra’s magazine, and she described her approach as closer to Agatha Christie and Alfred Hitchcock than to a detective story. Adweek’s Marketing Computers reported in 1989 that she considered herself “more of a screenplay writer than a product developer”. Computer Gaming World later counted her among the first designers “to build a full adventure from a female perspective”.

She also wrote for children who could not yet read well. Mixed-Up Mother Goose put nursery rhymes into an adventure for young players; as she recalled in 1996, “there was very little pre-school software and what was there was all educational”. It was still one of her three best-selling games that year. By the 1990s some of her games were collaborations: Sierra credited King’s Quest VI to her with Jane Jensen and King’s Quest VII with Lorelei Shannon, and she worked with Bruce Balfour on the second Laura Bow game, The Dagger of Amon Ra.

Phantasmagoria

In 1992 she told Computer Gaming World about a game that would surprise her fans. It was to be modern horror, because “I’ve wanted to do horror for a long time, but didn’t think the technology in computers was there for the game.” She had been studying how suspense works, and described the problem as an adventure designer: a horror story makes the audience linger at a closet door, but in an adventure game the player just clicks on the door and it opens. The magazine headlined its profile “Scryptkeeper”.

The game became Phantasmagoria (1995), a full-motion-video adventure filmed with live actors, which took more than three years to make and filled seven CDs. The player controlled Adrienne Delaney, a novelist who moves with her husband into a New England mansion once owned by a murderous stage magician. Computer Gaming World’s reviewer, Arinn Dembo, found it “truly horrific”, with graphic murders and “a realistically disgusting rape”, and warned that despite an option that pixelated the worst scenes she would not let anyone under 16 open the box. She also thought it “an important technological leap”. It sold well: in the summer of 1996 Sierra’s magazine called it a “current nationwide bestseller”, and it was one of Roberta’s three best-selling games. The full-motion video entry puts it among the other video games of the time.

Leaving, and coming back

Ken and Roberta Williams sold Sierra to CUC International in 1996, and Roberta stayed to finish King’s Quest: Mask of Eternity (1998), a 3D action-adventure. In 1999, at 45 by PC Player’s count, she was taking a year off. “In the last 18 years I was responsible for 18 games, one game a year,” she told the German magazine. “I deserve a break!” She talked about coming back to make adventures for the internet, but she did not return to the industry for more than two decades.

During the COVID-19 pandemic, she said, the idea of remaking Colossal Cave “just came out of my mouth. Kind of like when I first played the original game.” Ken learned the Unity engine to build it as a hobby project, and Roberta first said she would only help out, until she decided “this has got to be Sierra quality”. Their company, Cygnus Entertainment, released Colossal Cave, a 3D version that could also be played in virtual reality, on 19 January 2023, with Roberta as its lead designer. By then, she said, they had been “literally 25 years out of the business”.

Sources

Tom Byron, “Roberta’s Bequest”, interview, START vol. 4 no. 8, March 1990, pp. 22–24: Colossal Cave and the Scott Adams games; the restaurant in Simi Valley; the VersaWriter and the pictures; her list of games; The Colonel’s Bequest.
Nancy Smithe, “Roberta Williams: The Storyteller Who Started It All”, Sierra News Magazine (InterAction), Autumn 1989, p. 21: The Colonel’s Bequest, Laura Bow and her approach to the story.
Patricia Cignarella, “Girls Just Want to Have Fun”, Adweek’s Marketing Computers, June 1989, reprinted in Sierra News Magazine, Autumn 1989, pp. 22–25: her age, “more of a screenplay writer than a product developer”, Sierra’s women players.
Sierra News Magazine (InterAction) vol. 3 no. 2, Summer 1990: Ken Williams, “President’s Corner”, and John Williams, “Ten years: history of Sierra On-Line, Inc.” (Mystery House in May 1980, “the first adventure game with graphics”).
“Time Zone: An Interview with Roberta Williams”, Computer Gaming World issue 4, May 1982, pp. 14–15: the size, price and making of Time Zone; her role as designer; the rhea; “burned out on adventure games”.
“Designer Profile: Meet Roberta Williams, Scryptkeeper”, Computer Gaming World issue 96, July 1992, p. 48: the horror game that became Phantasmagoria.
Computer Gaming World issue 95, June 1992: Roberta Williams and Bruce Balfour on The Dagger of Amon Ra.
Arinn Dembo, review of Phantasmagoria, Computer Gaming World issue 136, November 1995, from p. 62: the story, seven discs, the censorship option, “truly horrific”, the age warning.
InterAction, Fall 1995: Phantasmagoria’s seven CD-ROMs and “more than three years in development”.
“InterAction Quick Interview” with Roberta Williams, InterAction, Summer 1996: Phantasmagoria as a “current nationwide bestseller”; her three best-selling games; Mixed-Up Mother Goose and pre-school software; “The Complete Roberta Williams Library”, crediting King’s Quest VI with Jane Jensen and King’s Quest VII with Lorelei Shannon.
Computer Gaming World issue 148, November 1996: Roberta Williams among the industry’s most influential people (“the first graphic adventure”; “a full adventure from a female perspective”).
PC Player (Germany), November 1999, p. 91: profile of Roberta Williams, her year off and 18 games in 18 years (quotations translated from German).
Jack Yarwood, “Once upon a time: the epic history of King’s Quest”, Wireframe issue 46, December 2020, pp. 28–33: the sale to CUC and Mask of Eternity.
“Q&A with Roberta & Ken Williams, developers of reimagined Colossal Cave, out today”, PlayStation Blog, 19 January 2023 (web, secondary): the idea for the remake, Ken’s work in Unity, “Sierra quality”, “25 years out of the business”. https://blog.playstation.com/2023/01/19/qa-with-roberta-ken-williams-developers-of-reimagined-colossal-cave-out-today/
“Colossal Cave launches January 19, 2023”, Gematsu, 8 December 2022 (web, secondary): Cygnus Entertainment, the platforms, Roberta Williams as “founder and lead designer”. https://www.gematsu.com/2022/12/colossal-cave-launches-january-19-2023-ps4-and-xbox-one-versions-in-q1-2023
Wikipedia, “Roberta Williams” (accessed September 2026) (web, secondary): her date of birth. https://en.wikipedia.org/wiki/Roberta_Williams