The most popular Engine: Sierra's Creative Interpreter (SCI) games
The Sierra's Creative Interpreter (SCI) engine was a game engine developed by Sierra On-Line, a prominent game developer and publisher in the 1980s and 1990s. SCI was used to create a variety of graphic adventure games, including classics like the King's Quest series, Space Quest series, and Quest for Glory series, among others.
The SCI engine represented a significant advancement in game development technology at the time of its introduction. It allowed for more sophisticated graphics, sound, and user interface elements compared to Sierra's earlier AGI (Adventure Game Interpreter) engine. SCI games typically featured point-and-click interfaces, animated sprites, and sometimes digitized sound effects and speech.
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Code-Name: Iceman
DOS1989 Sierra On-Line
Part Cold War thriller, part adventure game, part submarine simulator, Code-Name: Iceman is a Sierra title that demands patience, precision, and a deep respect for diplomacy and torpedoes. You play as a super-agent with a license ...
Hero's Quest: So you want to be a hero
DOS1989 Sierra On-Line
Jones in the Fast Lane
DOS1991 Sierra On-Line
Jones in the Fast Lane is the kind of game that you don't see often these days. It's a mix between a digital board game and a modern day life simulation. The goal of the game is to live the life of Jones, making choices about scho...
Phantasmagoria
Windows XP/98/95DOSMac OS1995protecteddemo Sierra On-Line
Phantasmagoria is a point-and-click horror adventure game developed and published by Sierra On-Line, released in 1995. Directed by Roberta Williams, Phantasmagoria departed from Sierra's usual fantasy and comedic themes to explore...
Leisure Suit Larry 7: Love for Sail
DOSWindows XP/98/95Mac OS1996protecteddemoNSFW Sierra On-Line
Leisure Suit Larry 7: Love for Sail! is a graphic adventure game developed and published by Sierra On-Line. It is the sixth installment in the Leisure Suit Larry series and was released in 1996. The game was designed by Al Lowe, t...
EcoQuest 2: Lost Secret of the Rainforest
DOS1993 Sierra On-Line
Leisure Suit Larry 5: Passionate Patti does a Llittle Undercover Work
DOS1991NSFW Sierra On-Line
Mixed-up Fairy Tales
DOS1991 Sierra On-Line
Police Quest: Open Season
DOSWindows 3.x1993protected Sierra On-Line
Quest for Glory 2: Trial by Fire
DOS1990protecteddemo Sierra On-Line
Quest for Glory II: Trial by Fire is the second installment in Sierra On-Line's Quest for Glory series, blending classic adventure gameplay with RPG elements in a world inspired by Middle Eastern folklore. Released in 1990 for Ami...
Castle of Dr. Brain
DOS1991 Sierra On-Line
Castle of Dr. Brain is a puzzle lover’s fever dream. It’s like someone crammed a Mensa test into a haunted house and added robot arms. You’re solving logic grids, cryptograms, and even playing the freaking musica...
Hoyle Classic Card Games
DOSWindows XP/98/95Mac OS1993 Sierra On-Line
Police Quest 2: The Vengeance
DOS1988protected Sierra On-Line
Police Quest 2: The Vengeance is a graphical point-and-click adventure game developed and published by Sierra On-Line. It was released in 1988 as the second installment in the Police Quest series, which was created by former ...
Leisure Suit Larry 6: Shape Up or Slip Out!
DOSWindows 3.x1993protectedNSFW Sierra On-Line
King's Quest 5: Absence makes the heart go yonder
DOSWindows 3.x1990protected Sierra On-Line
Quest for Glory 3: Wages of War
DOS1992protecteddemo Sierra On-Line
Quest for Glory III: Wages of War is an adventure/role-playing game developed and published by Sierra On-Line in 1992. The player takes on the role of the Hero, who has journeyed from the city of Shapeir to the savannahs and ...
Laura Bow 2: The Dagger of Amon Ra
DOSWindows 3.x1992protecteddemo Sierra On-Line
Laura Bow 2: The Dagger of Amon Ra is a point-and-click adventure game developed and published by Sierra On-Line in 1992. The game is a sequel to The Colonel's Bequest and follows the adventures of the protagonist, Laura Bow, a yo...
The Colonel's Bequest
DOS1989protecteddemo Sierra On-Line
The Colonel's Bequest is a graphic adventure game developed and published by Sierra On-Line. It was released in 1989 for various platforms, including MS-DOS, Amiga, and Atari ST. The game was created by Roberta Williams, co-founde...
Freddy Pharkas: Frontier Pharmacist
DOSWindows XP/98/95Windows 3.xMac OS1993protecteddemo Sierra On-Line
Freddy Pharkas: Frontier Pharmacist is a humorous point-and-click adventure game from 1993 developed by Sierra On-Line and co-designed by Al Lowe (creator of Leisure Suit Larry) and Josh Mandel. Set in the Old West, Freddy Pharkas...
Space Quest 3: The Pirates of Pestulon
DOSMac OS1989protected Sierra On-Line
Quest for Glory 4: Shadows of Darkness
DOSWindows 3.x1993protecteddemo Sierra On-Line
Quest for Glory IV: Shadows of Darkness is an adventure role-playing game (RPG) developed and published by Sierra On-Line. It was released in 1993 as the fourth installment in the Quest for Glory series. The game was designed by L...
Pepper's Adventures in Time
DOS1993demo Sierra On-Line
Conquests of Camelot: The Search for the Grail
DOS1990 Sierra On-Line
In Conquests of Camelot: The Search for the Grail, you don’t just play King Arthur—you earn your role as the guy in charge of finding a cup with magical healing powers while everyone else mysteriously becomes “bu...
Quest for glory 1: So you want to be a hero
DOS1989protected Sierra On-Line
Conquests of the Longbow: The Legend of Robin Hood
DOS1991protected Sierra On-Line
Conquests of the Longbow turns Robin Hood into less of a carefree swashbuckler and more of a medieval problem solver with a never-ending to-do list. Sure, you’ll shoot arrows and outwit the Sheriff, but you’ll also spe...
Crazy Nick's Leisure Suit Larry Casino
DOS1992 Sierra On-Line
Step into Crazy Nick’s Leisure Suit Larry Casino and leave your wallet safe—only your pride is at stake here. Larry Laffer, king of questionable fashion, hosts a digital den of blackjack, poker, and slots, each laced w...
Crazy Nick's Parlor Games with Laura Bow
DOS1992 Sierra On-Line
In Crazy Nick’s Parlor Games with Laura Bow, the famous young detective swaps clues for checkers, backgammon, and card tables. The change of pace is gentle—no bodies to find, no culprits to catch—just the soft cl...
EcoQuest: The Search for Cetus
DOS1991 Sierra On-Line
Gabriel Knight: Sins of the Fathers
DOSWindows 3.xMac OS1993protecteddemo Sierra On-Line
Gabriel Knight: Sins of the Fathers is a point-and-click adventure game developed and published by Sierra On-Line. It was released in 1993 and designed by Jane Jensen. The game is the first installment in the Gabriel Knight series...
Space Quest 5: The Next Mutation
DOS1993protected Dynamix
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