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'''AGI''' ('''A'''dventure '''G'''ame '''I'''nterpreter) was the development tool used by [[Sierra Entertainment|Sierra On-Line]] to create their early [[adventure game]]s. The first ''[[King's Quest]]'' game originally used a language named [[Game Assembly Language]], or *.gal, by its designer, [[Arthur Abraham]]. When its main designer left, Sierra was unable to complete the game, which had been intended to showcase the technology of the [[IBM PCjr]]. [[IBM]] "donated" its product, AGI, to Sierra to allow development of ''King's Quest'' to continue. When it debuted in the mid-1980s, AGI was innovative and made impressive use of the technology available at the time. Later versions were adapted to use 16 color [[Enhanced Graphics Adapter|EGA]] graphics and the [[Adlib]] soundcard. By the end of the 80s, however, AGI's 160�?�?���?�200 [[resolution]] began to show its age and could not compete with newer engines such as [[LucasArts|Lucasfilm Games]]' [[SCUMM]], which featured [[mouse]] support. In [[1990]], Sierra abandoned AGI and started using the SCI ([[Sierra Creative Interpreter]]) engine for their adventure games. '''[[Sarien]]''' ('''S'''ierra '''A'''GI '''R'''esource '''I'''nterpreter '''En'''gine) is a portable, [[open-source]] re-implementation of Sierra's AGI. ==List of AGI games== *''[[King's Quest: Quest for the Crown]]'' (1984) *''[[King's Quest II: Romancing the Throne]]'' (1985) *''[[The Black Cauldron]]'' (1986) *''[[Donald Duck's Playground]]'' (1986) *''[[King's Quest III: To Heir is Human]]'' (1986) *''[[Mickey's Space Adventure]]'' (1986) *''[[Space Quest I: The Sarien Encounter]]'' (1986) *''[[Winnie The Pooh in the Hundred Acre Wood]]'' (1986) *''[[Leisure Suit Larry 1|Leisure Suit Larry]] in the Land of the Lounge Lizards'' (1987) *''[[Mixed Up Mother Goose]]'' (1987) *''[[Police Quest: In Pursuit of the Death Angel]]'' (1987) *''[[Gold Rush!]]'' (1988) *''[[Manhunter: New York]]'' (1988) *''[[Space Quest II: Vohaul's Revenge]]'' (1988) *''[[King's Quest IV: The Perils of Rosella]]'' (1988) * *''[[Manhunter 2: San Francisco]]'' (1989) <nowiki>*</nowiki> ''King's Quest IV'' was simultaneously produced and published in both the AGI and [[SCI]] formats. The main advantages of SCI are a higher resolution (320x200 rather than 160x200 in AGI), [[sound card]] support, mouse support, and a more versatile scripting system. Sierra supposed that contemporary low-end systems would be unable to run the SCI version, thus requiring a 'lighter' version of the game. However, sales figures proved them wrong, and the AGI version was quickly discontinued. Because of its rarity, the AGI version could be considered a collector's item. Since AGI was reverse engineered years ago, there are many freeware programs which allows you to create your own AGI games. In fact, a good amount of people have made their own AGI games which you can play using [[Sarien]]. At the Ultimate AGI & SCI Web Site link listed in external links, you will find programs to create your own AGI games & also be able to download homebrew AGI games created using the freeware AGI design tool. == External links == *Sourced from [http://en.wikipedia.org/wiki/Adventure_Game_Interpreter Adventure Game Interpreter on Wikipedia] *[http://dmoz.org/Games/Video_Games/Adventure/Graphical_Adventures/Design_and_Development/Authoring_Systems/Sierra/AGI/ DMoz AGI directory] *[http://sarien.sourceforge.net/ Sarien home page] *[http://www.classicgaming.com/agisci/ The Ultimate AGI & SCI Web Site] [[Category:Game engines]]
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