Sierra's Creative Interpreter

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Sierra's Creative Interpreter (SCI) refers to

Although continuously developed between 1988 and 1996, five major versions can be isolated:

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[edit] SCI0 (0.000.xxx)

First used for King's Quest 4 in 1988, this version allowed for 320x200 graphics with 16 colors as well as a music-card compatible soundtrack. It also supported parser-based keyboard input which a game could be scripted to use if it wishes to do so (non-adventure games usually didn't).

Games using SCI0 (in order of release):

Later versions of SCI0 added bilingual support for international versions; their version string reads "S.OLD.xxx". Games include:

The last SCI0 game, "Jones in the Fast Lane", already used the graphics engine from SCI1 and thus was available in a 256 color version.

[edit] SCI1 (1.000.xxx/T.A00.xxx)

Released in 1990, the most notable improvement was the support of 256 color graphics, still at a resolution of 320x200; EGA 16 color graphics were still available (games were usually sold in separate 16 and 256 color versions). Some people prefer to call the 16-color SCI1 interpreters "SCI01".

Most SCI1 games are completely mouse-driven, using an icon-based interface; contrary to popular thought, it is up to the game's script code, not to the interpreter, to implement the user interface. For example, even though "Quest for Glory 2" is parser-driven and "King's Quest 5" is mouse-driven, they use compatible interpreters, as it is possible to use the interpreter from QFG2 with the EGA version of KQ5.

The version numbering scheme is somewhat confusing for the reason that the third number in the version string (the build number) has only three digits, even though four are needed. For example, the game "Space Quest 4" Version 1.052 ships with an interpreter labeled "1.000.753", whereas the game "Conquests of the Longbow" Version 1.0 ships with an interpreter labeled "1.000.168"; nevertheless, the latter interpreter is newer because the build number is actually 1168, not 168. Also, in some cases the "1.000" is replaced with "T.A00", which however does not indicate a separate development fork.

SCI1 games include:

Interpreters with build numbers >1000 have slightly modified file formats and improved foreign language support (resulting from a code merge with SCI0's S.OLD fork), but are otherwise like earlier SCI1 versions. Games include:

[edit] SCI1.1 (1.001.xxx)

Apart from considerable internal changes, SCI1.1 adds support for animated movie sequences (first used in KQ6) as well as scaling sprites: characters would become smaller as they walk into the distance, giving a pseudo-3D effect. (The interpreters from some early SCI1.1 games bear a "2.000.000" version stamp; this is most likely an inconsistency which should be ignored.) Separate 16-color packages were no longer available; EGA owners instead would be presented a 640x200 graphics display that simulated 256 colors via dithering.

[edit] SCI2 (2.xxx.xxx)

Often called "SCI32" (along with SCI3), it runs in 32-bit mode by using the DOS4G extender or by running it in Windows 3.1's Enhanced Mode. Most notable is the support of high-resolution 640x480 graphics, as well as better movie support. There are two known revisions, 2.000.000, and 2.100.002. Games include:

[edit] SCI3 (3.000.000)

The last version could not only run under DOS or Windows 3.1, but also natively under Windows 95. Games include:

[edit] Related software

FreeSCI is an open source engine that can run SCI0 games. FreeSCI works on Linux/Unix, Microsoft Windows, Sega Dreamcast, and GP32.

An open source program called SCI Studio is available that lets users create games that are based on the SCI0 engine. SCI Studio is designed for Windows. On Linux, using Wine version 20050830, SCI Studio seems to work for editing games, but not for testing or running them. The workaround is to use SCI Studio for development and FreeSCI for game testing.

[edit] See also

[edit] External links

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