Sierra Games

Spirit of Excalibur

Last updated: October 9, 2026

Overview

Spirit of Excalibur is a 1990 game that mixes strategy, role-playing and adventure. It was developed by Synergistic Software and published by Virgin.12 It is set in the year 539, after King Arthur has fallen at Camlann. The player is Lord Constantine, Arthur’s Crown Regent, who has to claim the throne and reunite a fractured Britain against Saxon invaders, the sons of Mordred and Morgan le Fay.13 Computer Gaming World said the game “picks up where War in Middle Earth left off.” It runs on the same engine as Synergistic’s earlier Tolkien game, which Synergistic called “World Builder.”456

Sierra On-Line did not publish Spirit of Excalibur. It belongs in SierraVault because Sierra acquired Synergistic in 1996, and the studio stayed a development group within Sierra until it closed in 1999.78 Polygon describes the game as one of Synergistic’s in-house projects. Publishers who were happy with the studio’s contract work invited Robert Clardy to pitch his own designs.8

Story Summary

The manual opens in York: “It is the year 539 in Arthurian England. Arthur has been killed at the battle of Camlann, and his realm is in ferment.”3 Constantine, Arthur’s successor at the head of the Round Table, has to travel to Camelot and take power. Lancelot has gone into retreat with most of Arthur’s veterans, many lords refuse to acknowledge the new king, and Mordred’s grown sons, Melehan and Morgolon, have taken up their father’s attempt to seize the throne.3

The game is split into five episodes, each of which escalates the threat:3

  1. The Kingmaking. Constantine travels from York to Camelot to claim the crown.
  2. The Return of Lancelot du Lac. A Scottish army under Melehan and a Saxon siege of London have to be dealt with, and Lancelot has to be persuaded to return.
  3. The Enigmatic Giant. A giant warrior appears outside Camelot and challenges the Round Table.
  4. The Enchanted Knights of the Forest Sauvage. A mysterious “Brown Knight” and his band are making knights disappear in the north.
  5. Morgan le Fay’s Revenge. Demons and disappearances across the kingdom lead to a final confrontation with Arthur’s half-sister.

Wikipedia notes that the game is won by uniting Britain’s fragmented kingdoms and keeping Constantine alive past the last episode.1 The manual’s bibliography draws on Malory’s Le Morte d’Arthur and Marion Zimmer Bradley’s The Mists of Avalon, among other works.3 The CRPG Addict, who studied Arthurian literature, pointed out that the game follows Malory in placing Camelot at present-day Winchester. He also noted that Melehan comes from obscure Vulgate and Post-Vulgate sources, while “Morgolon” seemed to be invented.10

Gameplay

Interface and Controls

Play moves between two levels:1

  • Map level. A scrolling overview of southern Britain where parties and armies, marked by heraldic shields, travel between towns, castles and abbeys in real time.12
  • Scene level. A side-on view of a location where conversations, item exchanges and individual combat happen.1

The game can be played with keyboard, joystick or mouse.11 Several reviewers complained that the command icons sit on the right edge of the screen. Moving the cursor over to them also scrolls the map. Dragon and Amiga Action both raised this.1112 Amiga Power counted a sixteen-screen map of Arthurian Britain.13

Structure and Progression

Constantine is the only character at the start. As the game goes on, the player gains control of other knights, the armies they lead and magicians such as Merlin.1 Each character has ratings for health, combat, magic, defence, nobility and faith. If nobility or faith falls far enough, the knight turns evil and leaves the player’s control. Good deeds raise nobility, and time spent in church restores faith.1 When two armies meet, a battle screen opens. If the player controls one side, he can give orders such as charging or flanking.1

Puzzles and Mechanics

Individual combat runs in real time. The player picks options such as Attack, Defend and Withdraw, or leaves the fight to the computer.41 Dragon found that the lead knight had only two blows available, an overhead strike and a thrust.11 The CRPG Addict found that most spells are used to clear specific obstacles rather than in battle, and that they depend on limited reagents.14 Quests mostly involve recruiting the right knights, delivering items and rescuing captives. Computer Gaming World criticised the game for never telling the player when an episode’s goals were complete.4

Reception

Contemporary Reviews

PublicationVersionScore
Amiga Joker (May 1991)Amiga78%9
Amiga Power #1 (May 1991)Amiga62%13
Zero #20 (Jun 1991)Amiga83%9
Amiga Action #21 (Jun 1991)Amiga70%12
Datormagazin #11 (Jun 1991)Amiga79%9
ACAR (Aug 1991)Amiga84%9
Amiga User International (Oct 1991)Amiga85%9
Dragon #171 (Jul 1991)MS-DOS4 of 5 stars1
White Wolf #24 (Dec 1990/Jan 1991)—4 of 51

Todd Threadgill reviewed the IBM version for Computer Gaming World in May 1991. He was “absolutely bowled over” by the 256-colour VGA scenes and named artists Rob Landeros, Robert Stein III, Jonathan Sposato and Curt Toumanian. He also objected that the documentation “utterly fails to adequately provide a sense of ‘what to do’,” and concluded that the game was “a technical wonder” that most players would nonetheless find “far too vague.”4 Hartley, Patricia and Kirk Lesser in Dragon called it “one of Virgin Mastertronic’s finest games to date.” They criticised its jerky scrolling, slow scene loading and the lack of control over army combat.11 Jim Trunzo of White Wolf wrote that “Fans of the Arthurian legends will thrill to the authenticity and feel of the game.”1

The Amiga press praised the presentation and complained about speed. Amiga Power compared the game to “the sort of thing Cinemaware might come up with if they produced a role-playing kind of game.” The review’s bottom line was “Pretty, but unless you are prepared to make several cups of coffee while each sequence loads, forget it.”13 Zero likened it to Defender of the Crown “with lots of plot” but complained about constant disk swapping across three disks.15 Amiga Action called it “Not a bad game overall.”12

Modern Assessment

The CRPG Addict gave the game 33 points on his GIMLET scale. He wrote that it “manages to combine three genres—adventure, RPG, and strategy—without being good at any of them,” while rating its game world as its strongest element.14 He later scored Conan: The Cimmerian, made on the same engine, at 42.6 On MobyGames the game has a Moby Score of 7.4.2

Development

Origins and Production

According to Polygon, Synergistic paid its bills with contract work for publishers, and satisfied publishers invited Bob Clardy to pitch in-house designs such as Spirit of Excalibur.8 Wikipedia credits Robert Clardy as director, Alan B. Clark as programmer, Rob Landeros and Robert Stein III as artists, and Christopher Barker (PC) and Mark Riley (Amiga) as composers.1 Lemon Amiga’s Amiga credits add coders James David Walley and Lloyd D. Ollmann Jr, artists Derek Clardy and Jonathan Sposato, data preparation by Michael Ormsby, and box art by Mark Ferrari.9 The manual is copyrighted 1990 by Virgin Mastertronic International, Inc.3

Computer Gaming World reported that Virgin Mastertronic marketed the game as a “Fantasy Epic,” which it called a “new genre in interactive computer entertainment.”4 The North American CD-ROM box called it “The first in a new series of FRP games with transferable characters.”16 The sequel did let players import characters from this game.17

Technical Achievements

PCGamingWiki lists the engine as Synergistic’s World Builder.5 According to MobyGames, the MS-DOS version supports EGA, MCGA, VGA and Tandy graphics. Supported sound includes AdLib, Roland MT-32, Game Blaster, Covox Sound Master and the PC speaker, and the minimum memory is 512 KB.2 The floppy releases ask questions answered from the printed map. The later CD-ROM version adds CD music and “full voice acting for conversations.”5

Version History

VersionDatePlatformPublisher / Notes
Floppy1990MS-DOS (US)Virgin Games, Inc.2
Floppy1990MS-DOS (UK, France, Germany, Italy)Virgin Mastertronic Ltd.2
Floppy1990Amiga, Atari ST (UK)Virgin Mastertronic Ltd.2
Floppy1990Macintosh (US)Virgin Games, Inc.2
Floppy1991Apple IIGS (US)Virgin Games, Inc.2
CDTV1991Commodore CDTV (US)Virgin Mastertronic International, Inc.2
CD-ROM1991MS-DOS (US/Canada)Virgin Mastertronic; CD audio and voice165
CD-ROM1991MS-DOS (UK)Virgin Games, Ltd.2

Legacy

Vengeance of Excalibur followed in 1991. Synergistic developed it again, and Virgin Games published it. The story moves to Spain, and the sequel can import characters from this game.171 Synergistic reused the World Builder engine once more for Conan: The Cimmerian (1991).6 After years as a Sierra subcontractor, Synergistic was taken over by Sierra in 1996, as Bob Clardy told Polygon.8

Collections

No compilation releases were found.

Downloads

Purchase / Digital Stores

  • No current digital store release was found.

Download / Preservation

Manuals & Extras

See Also

Spirit of Excalibur is the second of Synergistic Software’s World Builder games and the first of its two Arthurian games for Virgin.

References

Footnotes

  1. Wikipedia – Spirit of Excalibur – credits, platforms, map/scene levels, nobility/faith, episodes, Dragon 4/5, White Wolf #24 4/5 and Trunzo quote ↩ ↩2 ↩3 ↩4 ↩5 ↩6 ↩7 ↩8 ↩9 ↩10 ↩11 ↩12 ↩13 ↩14 ↩15 ↩16 ↩17 ↩18

  2. MobyGames – Spirit of Excalibur – per-platform release years and regional publishers, DOS tech specs, Moby Score 7.4 (read via MobyGames API) ↩ ↩2 ↩3 ↩4 ↩5 ↩6 ↩7 ↩8 ↩9 ↩10 ↩11 ↩12 ↩13 ↩14 ↩15

  3. Internet Archive – Spirit of Excalibur manual – opening text (year 539, Camlann), Constantine, Melehan and Morgolon, five episode summaries, bibliography, © 1990 Virgin Mastertronic International ↩ ↩2 ↩3 ↩4 ↩5 ↩6

  4. Todd Threadgill, “Arthur! Arthur!”, Computer Gaming World #82 (May 1991), pp. 64–67 – IBM review; “Fantasy Epic”; “picks up where War in Middle Earth left off”; artists named; quotes; $49.95 ↩ ↩2 ↩3 ↩4 ↩5

  5. PCGamingWiki – Spirit of Excalibur – World Builder engine; floppy map-answer protection; CD-ROM version with CD music and full voice acting ↩ ↩2 ↩3 ↩4 ↩5

  6. The CRPG Addict – Conan: The Summarian – engine Synergistic called “World Builder”; Conan 42 vs. Spirit 33 ↩ ↩2 ↩3

  7. Wikipedia – Synergistic Software – acquired by Sierra On-Line in 1996; closed February 22, 1999 ↩

  8. Polygon – “Diablo: Hellfire” behind-the-scenes feature (2018) – Spirit of Excalibur as an in-house project pitched to publishers; Synergistic as Sierra subcontractor; 1996 takeover ↩ ↩2 ↩3 ↩4

  9. Lemon Amiga – Spirit of Excalibur – Amiga credits (coders, graphics, box art, art director, data preparation) and magazine scores (ACAR, Amiga Joker, AUI, Datormagazin, Zero) ↩ ↩2 ↩3 ↩4 ↩5 ↩6 ↩7

  10. The CRPG Addict – Game 137: Spirit of Excalibur (1990) – Arthurian sources; Melehan from Vulgate texts; Camelot at Winchester following Malory ↩

  11. Hartley, Patricia & Kirk Lesser, “The Role of Computers”, Dragon #171 (July 1991) – PC review; “finest games to date”; two attack types; icon/scroll problem; no army-combat control ↩ ↩2 ↩3 ↩4

  12. Amiga Action #21 (June 1991), p. 38 – Amiga review, 70%; mouse/map-scroll complaint; “Not a bad game overall” ↩ ↩2 ↩3

  13. Mark Ramshaw, Spirit of Excalibur review, Amiga Power #1 (May 1991), p. 86 (Everygamegoing) – 62%; sixteen-screen map; Cinemaware comparison; disk access; bottom line ↩ ↩2 ↩3

  14. The CRPG Addict – Spirit of Excalibur: Final Rating – GIMLET 33; reagent-limited spells; quote ↩ ↩2

  15. Zero #20 (June 1991), p. 59 – Amiga review, £29.99; Defender of the Crown comparison; three-disk swapping ↩

  16. Eli’s Software Encyclopedia – Spirit of Excalibur (PC, CD-ROM) 1991 US/Canada release – Virgin Mastertronic CD-ROM, © 1991; packaging text “first in a new series of FRP games with transferable characters” ↩ ↩2

  17. Wikipedia – Vengeance of Excalibur – sequel by Synergistic, published by Virgin Games, 1991; character import from Spirit ↩ ↩2

  18. Internet Archive – Spirit of Excalibur [MS-DOS] CD-ROM – preserved CD-ROM edition dated 1991 ↩

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