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IBM commissioned Sierra to produce a game that could showcase these new capabilities. They discussed some requirements for the game, and IBM supplied Sierra with a PCjr prototype. They both agreed that the game should be animated—a first for Sierra. A team of six
475:, or SCI. Since the SCI engine required a more powerful home computer, Sierra released an AGI version of the game at the same time. However, Sierra overestimated consumer demand for the lesser version, and ceased production.
362:, Sierra continued to develop and improve the Adventure Game Interpreter. They employed it in 14 of their games between 1984 and 1989, before replacing it with a more sophisticated engine,
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Donald Duck's
Playground was released for the Apple II and Tandy Color Computer platforms but did not use the AGI engine for those ports, nor did the game's release for the Commodore 64
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them into video memory. This approach was not just to economize use of system resources; it also prevented the game from revealing hidden objects while it drew the screen.
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caused a sensation in the burgeoning market of PC-compatible computers, and Sierra sold more than half a million copies. They ported it to other computers, including the
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419:. Among the developers were Chuck Tingley and Ken MacNeill (later releases also credit Chris Iden. An Apple II version credits Arthur Abraham).
484:, then focused exclusively on SCI for new adventure game development. Among SCI's enhancements were a more versatile scripting system, an
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AGI was capable of running animated, color adventure games with music and sound effects. The player controls the game with a
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on the screen, and then colored them. Beginning with AGI version 2, the game engine drew graphics in an off-screen
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interpreter (the
Adventure Game Interpreter). The Game Adaptation Language was a
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IBM premiered the PCjr in 1984; it did not sell well and, therefore, neither did
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In late 1982, IBM began work on the PCjr, a lower-priced variant of the
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could display up to 16 colors at a time—a major improvement over the
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model, higher-resolution graphics (320×200 rather than 160×200), a
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wished to market in order to attract consumers to IBM's lower-cost
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would have consumed an excessive amount of disk space. Instead,
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The following year, Sierra published its final AGI-based title,
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Leisure Suit Larry in the Land of the Lounge
Lizards
1306:
Excerpt from a 1984 interview with
Roberta Williams
471:, Sierra debuted a more sophisticated game engine:
49:. Unsourced material may be challenged and removed.
322:. The company originally developed the engine for
1312:
550:Like Sierra's earlier adventure titles, such as
516:to simplify development. The engine comprised a
413:, worked on the game that was eventually titled
618:'s Macintosh computers. In addition, Sierra
931:Police Quest: In Pursuit of the Death Angel
642:AGI-based games published by Sierra On-Line
1167:
1165:
1163:
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1157:
109:Learn how and when to remove this message
1282:) is being considered for deletion. See
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523:called the Game Adaptation Language, a
16:Game engine developed by Sierra On-Line
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1051:King's Quest IV: The Perils of Rosella
564:with a capacity of 360 kilobytes, and
492:interface, and support for additional
468:King's Quest IV: The Perils of Rosella
438:that succeeded where the PCjr failed.
1241:
1202:
1200:
1172:Trivette, Donald B. (February 1985).
721:King's Quest II: Romancing the Throne
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47:adding citations to reliable sources
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179:3.002.149 / August 17, 1989
13:
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811:King's Quest III: To Heir Is Human
587:AGI was principally developed for
14:
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1286:to help reach a consensus. ›
1265:
1244:"Making adventure games with AGI"
1242:Kelly, Peter (January 21, 2000).
841:Space Quest: The Sarien Encounter
961:Space Quest II: Vohaul's Revenge
602:at the time. These included the
23:
1336:Video game development software
533:high-level programming language
512:, so the programmers created a
34:needs additional citations for
1117:
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1:
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508:made it a burden to write in
473:Sierra's Creative Interpreter
465:In 1988, with the release of
364:Sierra's Creative Interpreter
543:, which was executed by the
504:The technical complexity of
58:"Adventure Game Interpreter"
7:
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486:object-oriented programming
426:. However, later that year
10:
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1289:Adventure Game Interpreter
1081:Manhunter 2: San Francisco
481:Manhunter 2: San Francisco
369:
308:Adventure Game Interpreter
124:Adventure Game Interpreter
1295:Retrieved August 15, 2014
1208:"History of King's Quest"
539:. This was compiled into
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1284:templates for discussion
1248:Adventure Classic Gaming
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781:Donald Duck's Playground
156: (40 years ago)
556:(1980), AGI games used
553:Wizard and the Princess
1326:Adventure game engines
1214:. 2006. Archived from
592:computer architectures
391:Color Graphics Adapter
382:and sound. The PCjr's
901:Mixed-Up Mother Goose
628:TRS-80 Color Computer
626:computer models: the
614:'s Amiga series, and
376:IBM Personal Computer
265:TRS-80 Color Computer
1331:Sierra Entertainment
560:. The PCjr accepted
521:programming language
358:After the launch of
299:Proprietary software
43:improve this article
1021:Manhunter: New York
351:and, optionally, a
181: (35 years ago)
125:
1212:King's Quest Realm
751:The Black Cauldron
409:, led by designer
130:Original author(s)
123:
1218:on March 31, 2008
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604:IBM PC compatible
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430:released the
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387:video adapter
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338:home computer
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318:developed by
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154:May 1984
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60: –
59:
55:
54:Find sources:
48:
44:
38:
37:
32:This article
30:
26:
21:
20:
1277:
1251:. Retrieved
1247:
1220:. Retrieved
1216:the original
1211:
1187:. Retrieved
1181:
1176:King's Quest
1175:
1119:
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839:
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691:King's Quest
689:
586:
570:King's Quest
569:
562:floppy disks
551:
549:
506:King's Quest
505:
503:
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440:King's Quest
439:
424:King's Quest
423:
421:
416:King's Quest
414:
399:
373:
360:King's Quest
359:
357:
346:
325:King's Quest
323:
311:
307:
305:
271:Available in
140:Developer(s)
120:
105:
96:
86:
79:
72:
65:
53:
41:Please help
36:verification
33:
1272:‹ The
1111:Table Notes
578:data buffer
545:interpreter
514:game engine
328:(1984), an
316:game engine
287:Game engine
209:Apple GS/OS
1315:Categories
991:Gold Rush!
673:Apple IIGS
634:, and the
496:hardware.
494:sound card
448:Apple IIGS
432:Tandy 1000
407:developers
395:PC speaker
249:Apple IIGS
237:Intel 8088
186:1989-08-17
69:newspapers
1189:March 26,
636:Apple IIc
632:Apple IIe
612:Commodore
403:designers
221:Atari TOS
1274:template
1183:Compute!
1174:"Inside
1131:See also
663:Atari ST
658:Apple II
608:Atari ST
574:polygons
541:bytecode
529:bytecode
527:, and a
525:compiler
460:Atari ST
444:Apple II
380:graphics
353:joystick
349:keyboard
342:IBM PCjr
261:Atari ST
245:Apple II
232:Platform
1276:below (
1142:ScummVM
582:blitted
580:, then
518:bespoke
370:History
314:) is a
294:License
275:English
225:AmigaOS
184: (
161:1984-05
159: (
134:Unknown
83:scholar
1293:Curlie
1279:Curlie
683:CoCo 3
653:MS-DOS
630:, the
620:ported
606:, the
589:16-bit
458:, and
340:, the
213:ProDOS
205:MS-DOS
85:
78:
71:
64:
56:
1148:Notes
1137:SCUMM
894:1988
834:1988
668:Amiga
624:8-bit
616:Apple
572:drew
456:Amiga
434:, an
257:Amiga
90:JSTOR
76:books
1255:2016
1224:2016
1191:2016
1101:1989
1095:1990
1092:1990
1086:1989
1068:1989
1065:1990
1062:1990
1059:1990
1056:1988
1038:1988
1035:1988
1032:1988
1029:1988
1026:1988
1011:1989
1008:1989
1005:1989
1002:1989
999:1988
996:1988
981:1988
978:1988
975:1988
972:1987
969:1987
966:1987
951:1987
948:1987
945:1987
942:1987
939:1987
936:1987
918:1988
915:1988
912:1987
909:1990
906:1987
891:1988
888:1987
885:1987
882:1987
879:1987
876:1987
861:1987
858:1987
855:1987
852:1986
849:1986
846:1986
828:1988
825:1986
822:1986
819:1988
816:1986
795:1986
792:1986
786:1986
768:1987
765:1987
762:1986
759:1986
756:1986
738:1987
735:1987
732:1985
729:1985
726:1985
711:1987
708:1987
705:1987
702:1986
699:1984
696:1984
649:Game
405:and
306:The
282:Type
62:news
1291:at
1104:No
1074:No
1044:No
1014:No
984:No
954:No
924:No
864:No
804:No
774:No
744:No
714:No
678:Mac
598:in
452:Mac
334:IBM
312:AGI
253:Mac
241:x86
45:by
1317::
1246:.
1232:^
1210:.
1199:^
1180:.
1156:^
1098:No
1089:No
1071:No
1041:No
921:No
831:No
801:No
798:No
789:No
771:No
741:No
638:.
610:,
547:.
454:,
450:,
446:,
397:.
366:.
355:.
344:.
263:,
259:,
255:,
251:,
247:,
243:,
239:,
223:,
219:,
215:,
211:,
207:,
1257:.
1226:.
1193:.
1178:"
537:C
310:(
188:)
163:)
112:)
106:(
101:)
97:(
87:·
80:·
73:·
66:·
39:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
