Sierra On-Line

Last updated: May 8, 2026

Overview

Sierra On-Line (originally On-Line Systems, later Sierra Entertainment) was the flagship American video game publisher founded in 1979 by Ken Williams and Roberta Williams. The company pioneered the graphic adventure game genre and published some of the most influential games in PC gaming history, including the King’s Quest, Space Quest, Police Quest, Leisure Suit Larry, and Quest for Glory series.¹

Corporate History

Era	Name	Years	Notes
Founding	On-Line Systems	1979-1982	Original company name
Classic Era	Sierra On-Line	1982-1998	Main publishing label
Late Era	Sierra Studios	1997-2001	High-profile PC releases
Vivendi Era	Sierra Entertainment	1999-2008	Post-merger branding

Sub-Labels and Divisions

Sierra operated several specialized sub-labels for different game genres:

• SierraVision - Early arcade-style games (1982-1984)
• Sierra FX - Action and effects-heavy games (Quest for Glory V, SWAT 2)
• Sierra Attractions - Theme park and casual games (3-D Ultra series)
• Sierra Sports - Sports simulation titles
• Sierra Home - Educational and home software

Acquired Studios

Sierra acquired and published games from numerous development studios:

• Dynamix (acquired 1990) - Action, adventure, and simulation
• Impressions Games (acquired 1995) - City-building games
• Coktel Vision (acquired 1993) - French adventure and educational games
• Papyrus Design Group (acquired 1995) - Racing simulations
• Relic Entertainment (partnership) - Strategy games
• Berkeley Systems (acquired 1997) - Screensavers and casual games
• Synergistic Software (acquired) - Sports simulations, RPGs
• Valve (publishing partnership 1998-2001) - First-person shooters

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Games Published

This section lists all games published under Sierra On-Line and its subsidiaries.² Games with dedicated pages in this archive are linked; others are listed for completeness.³

On-Line Systems Era (1980-1982)

Adventures

• 1980 — Mission Asteroid — Notes: Hi-Res Adventure #0
• 1980 — Mystery House — Notes: First graphic adventure
• 1980 — The Wizard and the Princess — Notes: Hi-Res Adventure #2
• 1981 — Cranston Manor — Notes: Hi-Res Adventure #3
• 1981 — Ulysses and the Golden Fleece — Notes: Hi-Res Adventure #4
• 1981 — Softporn Adventure — Notes: Text adventure
• 1982 — Time Zone — Notes: Hi-Res Adventure #5, 6 disks
• 1982 — Adventure in Serenia — Notes: PCjr version

Arcade Games

• 1980 — Skeet Shoot — Third-party developed
• 1980 — Trap Shoot — Third-party developed
• 1980 — Hi-Res Football — Notes: Sports
• 1980 — Hi-Res Soccer — Notes: Sports
• 1980 — Hi-Res Cribbage — Notes: Card game
• 1981 — Crossfire — Notes: Jay Sullivan
• 1981 — Threshold — Notes: Arcade shooter
• 1981 — Jawbreaker — Notes: Pac-Man style
• 1981 — Gobbler — Notes: Olaf Lubeck
• 1981 — Sabotage — Notes: Mark Allen
• 1982 — Cannonball Blitz — Notes: Donkey Kong style
• 1982 — Frogger — Notes: Licensed port
• 1982 — Lunar Leeper — Notes: Chuck Bueche
• 1982 — Jawbreaker II — Notes: Atari 8-bit port
• 1982 — Laf Pak — Notes: Chuck Bueche compilation
• 1982 — Creepy Corridors — Notes: Maze game
• 1982 — Dragon’s Keep — Notes: Action
• 1982 — Marauder — Notes: Shooter
• 1982 — Mouskattack — Notes: Action
• 1982 — Pest Patrol — Notes: Fixed shooter

Licensed/Published Titles

• 1982 — Ultima II — Notes: Richard Garriott (Origin)

SierraVision/Early Sierra Era (1983-1984)

Adventures & Licensed Games

• 1983 — The Dark Crystal — Notes: Licensed from Jim Henson
• 1983 — Troll’s Tale — Notes: Children’s adventure
• 1983 — Ultima: Escape from Mt. Drash — Notes: VIC-20 spinoff⁴⁵
• 1984 — King’s Quest: Quest for the Crown — Notes: First AGI game
• 1984 — Mickey’s Space Adventure — Notes: Disney license
• 1984 — Winnie the Pooh — Notes: Disney license
• 1984 — Donald Duck’s Playground — Notes: Disney license
• 1984 — Gelfling Adventure — Notes: Al Lowe, Dark Crystal tie-in

Arcade Games

• 1983 — B.C.’s Quest for Tires — Notes: Licensed comic strip
• 1983 — Apple Cider Spider — Notes: Ivan Strand
• 1983 — Mr. Cool — Notes: Q*bert style⁶⁷
• 1983 — Oil’s Well — Notes: Arcade puzzle
• 1983 — Sammy Lightfoot — Notes: Platformer
• 1983 — Mine Shaft — Notes: Action
• 1983 — Aquatron — Notes: Shooter
• 1983 — WallWar — Notes: Peter Oliphant
• 1984 — B.C. II: Grog’s Revenge — Notes: Sequel
• 1984 — Sword of Kadash — Notes: Action RPG

Educational

• 1982 — Alphabet Blocks — Notes: Preschool
• 1982 — Bop-A-Bet — Notes: Alphabet game
• 1983 — Beginning Reading — Notes: Educational
• 1983 — Early Math — Notes: Educational
• 1983 — Kids’ Typing — Notes: Typing tutor
• 1983 — Ready, Set, Read! — Notes: Educational
• 1983 — Learning with Leeper — Notes: Educational
• 1984 — Learning with FuzzyWOMP — Notes: Educational
• 1984 — Wizard of Id’s WizType — Notes: Typing tutor
• 1984 — Wizard of Id’s WizMath — Notes: Math education

AGI Era (1985-1988)

Flagship Adventures

• 1985 — King’s Quest II — Notes: King’s Quest series
• 1986 — King’s Quest III — Notes: King’s Quest series
• 1986 — Space Quest — Notes: Two Guys from Andromeda
• 1986 — The Black Cauldron — Notes: Disney license
• 1987 — Leisure Suit Larry — Notes: Al Lowe
• 1987 — Police Quest — Notes: Jim Walls
• 1987 — Space Quest II — Notes: Space Quest series
• 1987 — Mixed-Up Mother Goose — Notes: Children’s
• 1988 — King’s Quest IV — Notes: First SCI game
• 1988 — Leisure Suit Larry II — Notes: LSL series
• 1988 — Police Quest II — Notes: PQ series
• 1988 — Gold Rush! — Notes: Doug & Ken MacNeill
• 1988 — Manhunter: New York — Notes: Murry & Evryware

Other Adventures & Games

• 1985 — The Crimson Crown — Notes: Polarware acquisition
• 1985 — Thexder — Notes: Game Arts (Japan)
• 1986 — Arcticfox — Dynamix (pre-acquisition)
• 1986 — Kempelen — Notes: Chess
• 1986 — Wrath of Denethenor — Notes: RPG
• 1987 — 3-D Helicopter Simulator — Notes: Sierra
• 1987 — Skyfox II — EA port

Sports & Simulation

• 1985 — Sierra Championship Boxing — Notes: Sports
• 1985 — Stunt Flyer — Notes: Flight sim

SCI/Golden Era (1989-1995)

Flagship Sierra Adventures

• 1989 — Quest for Glory I — Notes: Lori & Corey Cole
• 1989 — Space Quest III — Notes: Two Guys
• 1989 — Leisure Suit Larry III — Notes: Al Lowe
• 1989 — The Colonel’s Bequest — Notes: Laura Bow series
• 1989 — Manhunter 2 — Notes: Manhunter series
• 1989 — Codename: ICEMAN — Notes: Jim Walls
• 1990 — King’s Quest V — Notes: First VGA adventure
• 1990 — Quest for Glory II — Notes: QFG series
• 1990 — Conquests of Camelot — Notes: Christy Marx
• 1990 — Mixed-Up Mother Goose VGA — Notes: Remake
• 1991 — Space Quest I VGA — Notes: Remake
• 1991 — Space Quest IV — Notes: CD-ROM era
• 1991 — Leisure Suit Larry VGA — Notes: Remake
• 1991 — Leisure Suit Larry 5 — Notes: LSL series
• 1991 — Police Quest III — Notes: PQ series
• 1991 — Conquests of the Longbow — Notes: Christy Marx
• 1991 — EcoQuest — Notes: Jane Jensen debut
• 1992 — King’s Quest VI — Notes: Jane Jensen co-wrote
• 1992 — Quest for Glory I VGA — Notes: Remake
• 1992 — Quest for Glory III — Notes: QFG series
• 1992 — The Dagger of Amon Ra — Notes: Laura Bow series
• 1992 — Police Quest VGA — Notes: Remake
• 1993 — Gabriel Knight — Notes: Jane Jensen
• 1993 — Quest for Glory IV — Notes: QFG series
• 1993 — Space Quest V — Notes: Dynamix developed
• 1993 — Police Quest: Open Season — Notes: Daryl Gates
• 1993 — Freddy Pharkas — Notes: Al Lowe
• 1993 — Pepper’s Adventures in Time — Notes: Lorelei Shannon
• 1993 — EcoQuest 2 — Notes: Jane Jensen
• 1994 — King’s Quest VII — Notes: Animated style
• 1995 — Phantasmagoria — Notes: Roberta Williams FMV
• 1995 — The Beast Within — Notes: Gabriel Knight 2
• 1995 — Space Quest 6 — Notes: Final SQ
• 1995 — Shivers — Notes: Horror
• 1995 — Torin’s Passage — Notes: Al Lowe
• 1995 — Police Quest: SWAT — Notes: Tactical simulation

Dynamix Adventures & Action

• 1989 — David Wolf: Secret Agent — Notes: FMV action
• 1989 — Deathtrack — Combat racing
• 1990 — Rise of the Dragon — Notes: Cyberpunk adventure
• 1991 — Heart of China — Notes: 1930s adventure
• 1991 — The Adventures of Willy Beamish — Notes: Comedy adventure
• 1991 — Nova 9 — Notes: Stellar 7 sequel
• 1990 — Stellar 7 — Notes: Tank action
• 1993 — Stellar 7: Draxon’s Revenge — Notes: 3DO version
• 1993 — Stellar-Fire — Notes: 3DO

Dynamix Flight Simulations

• 1989 — A-10 Tank Killer — Notes: Attack aircraft sim
• 1990 — Red Baron — Notes: WWI combat
• 1991 — A-10 Tank Killer 1.5 — Notes: Updated
• 1992 — Aces of the Pacific — Notes: WWII Pacific
• 1992 — Red Baron Mission Builder — Notes: Expansion
• 1993 — Aces Over Europe — Notes: WWII Europe
• 1994 — Aces of the Deep — Notes: U-boat sim
• 1995 — Command Aces of the Deep — Notes: Enhanced
• 1996 — Silent Thunder — Notes: A-10 sequel
• 1997 — Red Baron II — Notes: WWI sequel
• 1998 — Red Baron 3D — Notes: 3D accelerated
• 1999 — Curse You! Red Baron — Notes: Arcade spin-off⁸⁹

Dynamix Mech & Strategy

• 1994 — Metaltech: Earthsiege — Notes: Mech combat
• 1994 — Metaltech: Battledrome — Notes: Mech arena
• 1995 — Earthsiege Expansion — Notes: Add-on
• 1996 — Earthsiege 2 — Notes: Sequel
• 1996 — MissionForce: CyberStorm — Notes: Mech strategy
• 1996 — Hunter Hunted — Notes: Action
• 1996 — CyberGladiators — Notes: Fighting
• 1998 — CyberStorm 2 — Notes: Strategy sequel
• 1998 — Starsiege: Tribes — Notes: Online FPS
• 1999 — Starsiege — Notes: Mech sim
• 2001 — Tribes 2 — Notes: FPS sequel
• 2002 — Tribes: Aerial Assault — Notes: PS2

The Incredible Machine Series

• 1992 — The Incredible Machine — Notes: Puzzle classic
• 1993 — Even More Incredible Machine — Notes: Sequel
• 1993 — Sid & Al’s Incredible Toons — Notes: Cartoon spin-off
• 1994 — The Incredible Machine 2 — Notes: Sequel
• 1994 — The Incredible Toon Machine — Notes: Sequel
• 1995 — The Incredible Machine 3 — Notes: Windows version
• 2000 — Return of TIM — Notes: Revival
• 2001 — Even More Contraptions — Notes: Add-on

Dr.¹⁰ Brain Series

• 1991 — Castle of Dr. Brain — Notes: Educational puzzle¹¹¹²
• 1992 — The Island of Dr. Brain — Notes: Sequel¹³¹⁴
• 1995 — The Lost Mind of Dr. Brain — Notes: Third entry¹⁵
• 1996 — The Time Warp of Dr. Brain — Notes: Fourth entry
• 1998 — Dr. Brain: IQ Adventure — Notes: Children’s
• 1998 — Dr. Brain: Puzzle Madness — Notes: Children’s
• 1999 — Dr. Brain: Action Reaction — Notes: Physics puzzles

Coktel Vision Titles

• 1988 — Abracadabra — Adventure
• 1988 — African Raiders-01 — Notes: Action
• 1989 — Emmanuelle — Notes: Adult adventure
• 1989 — Legend of Djel — Notes: Fantasy adventure
• 1989 — E.S.S. — Notes: Space sim
• 1990 — Geisha — Notes: Adult adventure
• 1991 — E.S.S. Mega — Notes: Enhanced edition
• 1991 — Fascination — Notes: Adventure
• 1991 — Gobliiins — Notes: Puzzle adventure
• 1991 — A.G.E. — Notes: Strategy
• 1992 — A.J.’s World of Discovery — Notes: Educational
• 1992 — Bargon Attack — Notes: Sci-fi adventure
• 1992 — Gobliins 2 — Notes: Sequel
• 1992 — Inca — Notes: Action-adventure
• 1992 — Ween: The Prophecy — Notes: Fantasy adventure
• 1993 — Goblins Quest 3 — Notes: Trilogy finale
• 1993 — Inca II — Notes: Sequel
• 1993 — Lost in Time — Notes: Sci-fi adventure
• 1994 — Playtoons 1 — Notes: Children’s
• 1995 — Playtoons 2 — Notes: Children’s
• 1995 — Playtoons 3 — Notes: Children’s
• 1995 — Playtoons 4 — Notes: Children’s
• 1995 — Woodruff and the Schnibble — Notes: Comedy adventure
• 1996 — Urban Runner — Notes: FMV thriller

Impressions Games Titles

• 1991 — Cohort: Fighting for Rome — Notes: Strategy
• 1991 — Fort Apache — Notes: Western strategy
• 1991 — Merchant Colony — Notes: Trade sim
• 1991 — V for Victory: Utah Beach — Notes: Wargame
• 1992 — Air Bucks — Notes: Airline sim
• 1992 — Air Force Commander — Notes: Strategy
• 1992 — Crime City — Management sim
• 1992 — Conquest of Japan — Notes: Strategy
• 1992 — Discovery — Notes: History sim
• 1993 — Caesar — Notes: City-builder
• 1993 — Cohort II — Notes: Strategy sequel
• 1993 — Global Domination — Notes: Strategy
• 1993 — WW2 Air Force Commander — Notes: Wargame
• 1994 — Detroit — Notes: Business sim
• 1994 — Front Lines — Notes: WWI strategy
• 1994 — Lords of the Realm — Notes: Medieval strategy
• 1995 — Caesar II — Notes: City-builder
• 1995 — High Seas Trader — Notes: Trading sim
• 1996 — Lords of the Realm II — Notes: Strategy
• 1997 — Lords of the Realm II Siege Pack — Notes: Expansion
• 1998 — Caesar III — Notes: City-builder classic
• 1999 — Pharaoh — Notes: Egyptian city-builder
• 2000 — Cleopatra — Notes: Pharaoh expansion
• 2000 — Zeus: Master of Olympus — Notes: Greek city-builder
• 2001 — Poseidon — Notes: Zeus expansion
• 2002 — Emperor — Notes: Chinese city-builder
• 2004 — Lords of the Realm III — Notes: Strategy
• 2006 — Caesar IV — Notes: 3D city-builder

Papyrus Racing Simulations

• 1993 — IndyCar Racing — Notes: Open-wheel racing
• 1994 — NASCAR Racing — Notes: Stock car racing
• 1995 — IndyCar Racing II — Notes: Sequel
• 1996 — NASCAR Racing 2 — Notes: Sequel
• 1997 — NASCAR Racing 2 Grand National — Notes: Expansion
• 1998 — Grand Prix Legends — Notes: 1967 F1
• 1999 — NASCAR Racing 3 — Notes: Updated
• 1999 — NASCAR Legends — Notes: Retro racing
• 1999 — NASCAR Truck Series — Notes: Truck racing
• 2001 — NASCAR Racing 4 — Notes: Sequel
• 2002 — NASCAR Racing 2002 — Notes: Annual update
• 2003 — NASCAR Racing 2003 — Notes: Final Papyrus

Hoyle Game Collections

• 1989 — Hoyle Volume 1 — Notes: Card games
• 1990 — Hoyle Volume 2 — Notes: Board games
• 1991 — Hoyle Volume 3 — Notes: Solitaire
• 1991 — Hoyle Volume 4 — Notes: Puzzles
• 1996 — Hoyle Bridge — Notes: Bridge
• 1993 — Hoyle Volume 5 — Notes: More games
• 1995 — Hoyle Solitaire — Notes: Solitaire collection
• 1996 — Hoyle Casino (1996) — Notes: Casino games
• 1996 — Hoyle Blackjack — Notes: Blackjack
• 1993 — Hoyle Classic Cards — Notes: Card collection
• 1997 — Hoyle Poker — Notes: Poker games
• 1997 — Hoyle Classic Board Games — Notes: Board games
• 1998 — Hoyle Battling Ships — Notes: Strategy games
• 1999-2008 — See Hoyle series — Game: Multiple annual Hoyle releases

Late Era (1996-1999)

Sierra Adventures (Continued)

• 1996 — Leisure Suit Larry 7 — Notes: Last classic LSL
• 1996 — Phantasmagoria 2 — Notes: Sequel
• 1996 — Lighthouse — Notes: Myst-style
• 1996 — RAMA — Notes: Arthur C. Clarke license
• 1997 — Shivers II — Notes: Horror sequel
• 1998 — King’s Quest: Mask of Eternity — Notes: Action-RPG hybrid
• 1998 — Quest for Glory V — Notes: Series finale
• 1998 — Police Quest: SWAT 2 — Notes: Strategy
• 1998 — Return to Krondor — Notes: RPG
• 1999 — Gabriel Knight 3 — Notes: 3D adventure
• 1999 — SWAT 3 — Notes: Tactical FPS

Valve/Sierra Partnership

• 1998 — Half-Life — Notes: Revolutionary FPS
• 1999 — Half-Life: Opposing Force — Notes: Gearbox expansion
• 1999 — Team Fortress Classic — Notes: Class-based multiplayer
• 2000 — Counter-Strike — Notes: Tactical shooter
• 2000 — Gunman Chronicles — Notes: Western FPS
• 2001 — Half-Life: Blue Shift — Notes: Gearbox expansion
• 2004 — Counter-Strike: Condition Zero — Notes: Updated CS

Relic Entertainment

• 1999 — Homeworld — Notes: 3D space RTS
• 2000 — Homeworld: Cataclysm — Notes: Barking Dog expansion
• 2003 — Homeworld 2 — Notes: Sequel

Other Strategy & Simulation

• 1993 — Betrayal at Krondor — Notes: Raymond E. Feist RPG
• 1994 — Outpost — Notes: Space colony sim
• 1994 — Alien Legacy — Notes: Space colony sim
• 1995 — Shannara — Notes: Terry Brooks RPG
• 1996 — Birthright — Notes: D&D strategy
• 1996 — Rise & Rule of Ancient Empires — Notes: Strategy
• 1996 — Civil War General — Notes: Wargame
• 1997 — Civil War Generals 2 — Notes: Wargame
• 1997 — Lords of Magic — Notes: Fantasy strategy
• 1997 — Outpost 2 — Notes: Colony sim sequel
• 1997 — Betrayal in Antara — Notes: RPG spiritual successor
• 2001 — Arcanum — Notes: Troika steampunk RPG
• 2001 — Empire Earth — Notes: RTS
• 2002 — Empire Earth expansion — Notes: Add-on

Front Page Sports Series

• 1992 — FPS Football 92 — Notes: Football sim debut
• 1993 — FPS Football Pro — Notes: Football
• 1994 — FPS Football Pro ‘95 — Notes: Football
• 1994 — FPS Baseball Pro — Notes: Baseball debut
• 1995 — FPS Football Pro ‘96 — Notes: Football
• 1996 — FPS Football Pro ‘97 — Notes: Football
• 1996 — FPS Baseball Pro ‘96 — Notes: Baseball
• 1997 — FPS Football Pro ‘98 — Notes: Football
• 1997 — FPS Baseball Pro ‘98 — Notes: Baseball
• 1997 — FPS Golf — Notes: Golf sim
• 1997 — FPS Golf Tour Course Add-On — Notes: Expansion
• 1997 — FPS Ski Racing — Notes: Skiing
• 1997 — FPS Trophy Rivers — Notes: Fishing
• 1999 — FPS Ski Racing 99 — Notes: Skiing sequel

Trophy Bass Series

• 1995 — Trophy Bass — Notes: Fishing sim debut
• 1996 — FPS Trophy Bass 2 — Notes: Sequel
• 1999 — Field & Stream: Trophy Bass 3D — Notes: Licensed rebrand
• 2000 — Field & Stream: Trophy Bass 4 — Notes: Final entry

Other Sierra Sports Titles

• 1994 — Sierra Soccer — Notes: Amiga exclusive
• 1997 — CART Racing — Notes: IndyCar-style
• 1998 — PGA Championship Golf — Notes: Licensed golf
• 1999 — Professional Bull Rider — Notes: Rodeo

3-D Ultra Series

• 1995 — 3-D Ultra Pinball — Notes: Pinball
• 1996 — 3-D Ultra Pinball: Creep Night — Notes: Halloween themed
• 1997 — 3-D Ultra MiniGolf — Notes: Mini golf
• 1997 — 3-D Ultra Pinball: Lost Continent — Notes: Dinosaurs
• 1998 — 3-D Ultra MiniGolf Deluxe — Notes: Enhanced
• 1998 — 3-D Ultra NASCAR Pinball — Notes: Racing themed
• 1999 — 3-D Ultra Cool Pool — Notes: Billiards
• 1999 — 3-D Ultra TrainTown — Notes: Model trains
• 1999 — 3-D Ultra Pinball: Power — Notes: Pinball
• 1999 — 3-D Ultra RC Racers — Notes: RC cars
• 2000 — 3-D Ultra TrainTown Deluxe — Notes: Enhanced
• 2000 — 3-D Ultra Pinball: Thrill Ride — Notes: Theme park
• 2000 — 3-D Ultra RC Racers Traxxas — Notes: Enhanced
• 2000 — Maximum Pool — Notes: Pool

Post-2000 Titles

Action Games

• 2000 — No One Lives Forever — Notes: Monolith spy FPS
• 2000 — Ground Control — Notes: Massive RTS
• 2002 — No One Lives Forever 2 — Notes: Sequel
• 2003 — Contract J.A.C.K. — Notes: NOLF spin-off
• 2004 — Ground Control II — Notes: RTS sequel
• 2005 — SWAT 4 — Notes: Tactical shooter
• 2006 — SWAT 4 expansion — Notes: Add-on
• 2007 — World in Conflict — Notes: RTS

Casual & Party Games

• 2004 — Leisure Suit Larry: Magna Cum Laude — Notes: Comedy reboot
• 2006 — 3D Ultra MiniGolf Adventures — Notes: Xbox 360
• 2010 — 3D Ultra MiniGolf Adventures 2 — Notes: Sequel

Third-Party Published Titles

Sierra distributed these games without development involvement:

Year	Game	Developer	Notes
1996	Diablo	Blizzard Entertainment	Distribution only
1997	Diablo: Hellfire	Synergistic	Expansion
1995-2000	You Don’t Know Jack series	Jellyvision	Trivia games
1988	Silpheed	Game Arts	Japanese shooter
1988	Zeliard	Game Arts	Action RPG
1990	Sorcerian	Game Arts	RPG
1999	Die Hard Trilogy 2	n-Space	Licensed action
1999	Viper Racing	Monster Games	Racing
2001	Throne of Darkness	Click Entertainment	Action RPG

Cancelled Projects

• Space Quest VII — Series: Space Quest
• King’s Quest IX — Series: King’s Quest
• Leisure Suit Larry 8 — Series: LSL
• Manhunter 3 — Series: Manhunter
• Babylon 5: Into the Fire — Series: Standalone
• NFL Football Pro ‘99 — Series: FPS (recalled)

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Notes

After corporate restructuring in the late 1990s, Sierra On-Line branding gradually gave way to sub-labels like Sierra Studios and Sierra Sports for specific genres, but the Sierra On-Line name remains iconic in adventure and PC gaming history.

References

Footnotes

1. Wikipedia - Sierra Entertainment - Comprehensive company history ↩

2. MobyGames - Sierra Entertainment, Inc. - Game database and corporate history ↩

3. The Digital Antiquarian - Sierra History Articles - Detailed historical analysis ↩

4. Sierra Gamers - Fan community and preservation ↩

5. Not All Fairy Tales Have Happy Endings: The Rise and Fall of Sierra On-Line - Ken Williams memoir ↩

6. Wikipedia - Ken Williams (game developer) - Founder biography ↩

7. Wikipedia - Roberta Williams - Founder and designer biography ↩

8. Computer History Museum - Sierra On-Line - Historical artifacts ↩

9. Hardcore Gaming 101 - Sierra Adventures - Game retrospectives ↩

10. Adventure Gamers - Sierra Legacy - Company analysis ↩

11. GOG - Sierra Games - Digital preservation catalog ↩

12. Wikipedia - Adventure Game Interpreter - AGI engine history ↩

13. Wikipedia - Sierra Creative Interpreter - SCI engine history ↩

14. Giant Bomb - Sierra Entertainment - Company overview ↩

15. IGDB - Sierra Entertainment - Company database ↩