Sierra
Sierra is a video game company founded by Ken and Roberta Williams.
The company built it's reputation as a company for excellent graphic adventures beginning in the early 1980s, and continued until it was purchased by Vivendi Universal (now known as Vivendi SA) in the late 1990's. Sierra now only exists as a label - as the entire Sierra staff was laid off and the Sierra building was closed. It is doubtful that Vivendi will produce any more adventure games.
The adventure games created with Sierra's Adventure Game Interpreter (and it's predecessors) are implemented in ScummVM using the code base from the Sarien and TrollVM projects. The adventure games created with Sierra's Creative Interpreter are implemented in ScummVM using the code base from the FreeSCI project. All of them were done with permission obtained from the original authors of those projects.
PreAGI
There were several games that used some parts of the AGI engine, before it was mature enough (see TrollVM):
- Dragon's Keep (1982)
- The Gelfling Adventure (1983)
- Troll's Tale (1983)
- Mickey's Space Adventure (1984)
- Winnie the Pooh in the Hundred Acre Wood (1984)
AGI
- King's Quest (1984)
- King's Quest II (1985)
- The Black Cauldron (1986)
- Donald Duck's Playground (1986)
- King's Quest III (1986)
- Space Quest (1986)
- Christmas Card 1986 (1986)
- AGI Demo (1987 through 1988)
- Leisure Suit Larry (1987)
- Mixed-Up Mother Goose (1987)
- Police Quest (1987)
- Space Quest II (1987)
- Gold Rush (1988)
- King's Quest IV (1988)
- Manhunter (1988)
- Seasons Greetings From TANDY AKA AGI Demo for Radio Shack (1988)
- Manhunter 2 (1989)
SCI
Starting in 1988, adventure game development switched to the more versatile SCI (Sierra's Creative Interpreter) engine. This new engine is object oriented, contrary to AGI that is procedural.
- King's Quest IV (1988 - SCI remake)
- Christmas Card 1988 (1988)
- Leisure Suit Larry 2 (1988)
- Space Quest III (1988)
- Astro Chicken (1991 - from Space Quest III)
- Quest for Glory / Hero's Quest (1989)
- Police Quest II (1989)
- Leisure Suit Larry 3 (1989)
- Laura Bow: The Colonel's Bequest (1989)
- Codename: Iceman (1989)
- Hoyle's Official Book of Games: Volume 1 (1989)
- Christmas Card 1990: The Seasoned Professional (1990)
- Conquests of Camelot (1990)
- Hoyle's Official Book of Games: Volume 2 (1990)
- Mixed-Up Mother Goose (1990 - SCI remake)
- King's Quest I (1990 - SCI remake)
- Quest for Glory II (1990)
- King's Quest V (1990)
- Jones in the Fast Lane (1991)
- Leisure Suit Larry 1 (1991 - SCI remake)
- Leisure Suit Larry 5 (1991)
- EcoQuest (1991)
- Mixed-up Fairy Tales (1991)
- Police Quest III (1991)
- Space Quest (1991 - SCI remake)
- Space Quest IV (1991)
- Castle of Dr. Brain (1991)
- The Fun Seeker's Guide (1991)
- Ms. Astro Chicken (1991 - from Space Quest IV)
- Crazy Nick's Software Picks: King Graham's (1992)
- Crazy Nick's Software Picks: Laura Bow's (1992)
- Crazy Nick's Software Picks: Robin Hood's (1992)
- Crazy Nick's Software Picks: Roger Wilco's (1992)
- Crazy Nick's Software Picks: Larry's (1992)
- Hoyle's Official Book of Games: Volume 3 (1992)
- Police Quest (1992 - SCI remake)
- Conquests of the Longbow (1992)
- The Laffer Utilities (1992)
- Christmas Card 1992 (1992)
- The Island of Dr. Brain (1992)
- King's Quest VI (1992)
- The Dagger of Amon Ra (1992)
- Quest for Glory III (1992)
- EcoQuest II (1993)
- Slater & Charlie Go Camping (1993)
- Freddy Pharkas (1993)
- Leisure Suit Larry 6 (1993)
- Crazy Nick's Soft Picks: Laura Bow (1993)
- Pepper's Adventures in Time (1993)
- Space Quest V (1993)
- Leisure Suit Larry 6 (1993)
- Gabriel Knight (1993)
- Police Quest IV (1993)
- Quest for Glory IV (1993)
- King's Quest VII (1994)
- Inside The Chest (1994)
- Behind the Developers' Shield (1994)
- The Royal Scribe (1994)
- King's Quest trivia (1994)
- Phantasmagoria (1995)
- The Beast Within (1995)
- Shivers (1995)
- Space Quest 6 (1995)
- Torin's Passage (1995)
- Police Quest: SWAT (1995)
- Leisure Suit Larry 7 (1996)
- Lighthouse (1996)
- Phantasmagoria II (1996)
- RAMA (1996)
- Shivers 2 (1997)
- History of Space Quest (1997 - from Space Quest: Collection Series)
- Leisure Suit Larry Casino (1998)
A version history of Sierra's games can be found under Sierra Game Versions