System

System is a series of OS/VM hybrids that was designed by Alice Soft to cope with porting their games across different computer platforms. This was especially important in the early days of Alice Soft's history, when there were multiple prevalent families of computers (PC-98, x68k, FM-Towns etc) competing on the Japanese PC market. A similar strategy was used by other developers at the time, such as Infocom's famous Z-Machine interpreter.

With the eventual dominance of IBM PCs and Microsoft Windows, the role of System becomes relegated to just a programming platform that serves as a nice abstraction for the game designers. Starting with System 3.5, only versions for the Windows environment have been officially released. However, due to the original design of the System series and a publicly-released API set, it is possible to port major versions of System to other platforms (such as Linux). By merely porting System, all Alice Soft games compatible with that version of System are automatically ported as well.

As earlier versions of System do not make any attempt to advertise the version of System they are using, it can be hard to say which games were created on which version fo the software, but known details are below.

System 1
The System 1 interpretor was introduced with the release of Little Vampire, the company's second game, back when Alicesoft was still ChampionSoft. The interpreter operates under the assumption that it is being used to create visual novel-style games, and takes several shortcuts that make creating more complicated products an uphill battle. For example, the game relies on a system of verb:object pairs, where the player selects a verb from the menu, followed by a target object. This is the architecture's default form of interaction, and any other experience requires additional footwork on the part of the programer.

Notable Known Titles

 * Little Vampire
 * Intruder

System 2
System 2 saw a number of new upgrades, as well as a gradual shift towards more traditional variables, such as the existence of a 10-item stack of string variables, and the gradual standardization of an "Extend" command that could be used to provide new features not present in earlier games (delineated with the letter "Y" in code), which had been introduced in System 1 but varied wildly from title to title.

Notable Known Titles

 * Prostudent G: Has the unusual distinction of being a System 2 title on floppy, but a System 3 title on CD.

System 3
System 3 continues the trend of upgrading the architecture towards more standard programming practices, greatly expanding the architecture's command set, introducing RGB on-the-fly color modification, and a set of variable stacks (ironically, System 3.5 would replace this with only a single, but more powerful, stack). It also saw early CD support, support for PCM and CD music, and system clock operations. The iteration also saw a considerable degree of bloat, introducing over fifty Extend commands over its lifetime alone.

System 3 was supported on the PC-88, PC-98, MSX, x68k, FM-Towns, and Windows 3.1.

Notable Known Titles

 * AmbivalenZ
 * Rance 4.1
 * Rance 4.2
 * Only You - The_Decadent_Juliets

System 3.X
System 3.X (which starts with System 3.5 and continues up to System 3.9) was a major upgrade to the System architecture necessitated by the development of Kichikuou Rance, which became too complicated for the restricted and irregular System 3.0. While Alicesoft had been planning a proper upgrade to System 4, the powerful additions from System 3.5 carried the product along for another six years without any upgrades at all.

System 3.X disposed of the verb:object system restrictions that were still lingering from System 1, unlocked the game's variables from various restrictions (such as the limit of 10 strings discussed above), and expanded the architecture's command set with new, standardized commands to not only give the programmer more power over the existing options, but to do away with the bloated Extend command, which remained in only a few instances. Over its lifetime, System 3.X also saw the addition of DLL libraries to help expand its capabilities, though this saw only limited use before the introduction of System 4.

As Alicesoft wanted to capitalize on the newly-dominant Windows PC market, they re-released many of their popular titles on System 3.X, such as the first four Rance games.

Unlike past versions of System, System 3.X was publically released, starting on collector's CDs, leading to a wide variety of tools such as resource extractors and decompilers. This public release is heavily responsible for the early fan efforts that brought Alicesoft titles to the west, as it allowed for easier translation of remake titles like Rance 1-4. Fan-made ports of System 3.X even exist for X Windows systems (Unix/Linux), see below.

System 4
System 4 is the most recent incarnation of the "System" architecture, and the one used by Alicesoft to this day. Like System 3.X, it was released to the public, including the (Japanese-only) System 4 IDE.

System 4 uses a C++ style programming, and is actually much simpler and arguably weaker than System 3.X on its own, but its ability to interact with DLLs is more complex, which allowed it to expand far beyond its predecessor. In the architecture's first decade, Alicesoft also built up a reliable code bank that could be easily re-used (unlike System 3.X code) in new products. The most frequently used library is the Asra library, seen in nearly all Alicesoft titles beyond a certain date and almost indistinguishable from System 4 in the modern day. The Asra3 library supplants or sometimes joins the original Asra library for Alicesoft's 3D games.