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Styx was originally created by Windmill Software in 1983 and released as a copy-protected, bootable 5.25" floppy disk for the IBM PC/XT. It is a clone of the 1981 arcade game ''Qix''. Three significant differences are: the caterpillar (that can grow in size in later rounds), the introduction of diagonal movement (in contrast to Qix allowing only four directions), and the X1/X5/X10 multiplier that would color a claimed area corresponding to the color of the multiplier (also awarding that many points). Styx used the same game engine as two other Windmill Software games, The Exterminator and Moonbugs, and these were some of the few programs to make use of the 16-color quasi-graphics CGA mode (normally the CGA could only use 4 or 2 color graphics). However, it was possible to play on a monochrome monitor as long as the graphics card also supported color graphics (e.g. a Genoa Color Graphics Card). Styx, The Exterminator, and Moonbugs set CGA 320x200x4 mode on the title screen by directly manipulating the video registers; this causes them to display a screen full of garbage on later video cards. The in-game graphics also will only occupy half the screen due to technical differences between CGA and EGA/VGA, however the games can be patched to work correctly on VGA. ==External links== *(A ''Styx'' fansite ) * 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Styx (Windmill game)」の詳細全文を読む スポンサード リンク
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