MYST runs very well on A4000/030 25MHz 12MB-fast 2MB-chip = CyberVision64, TandemCD controller with CD-ROM 4x MITSUMI-ATAPI EIDE.
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Also runs on 040/25, 4XCD-ROM and on A4000 040 40MHz and Cybervision64 (and a lot of memory, of course).
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Also successfully tested on: A1200/Blizzard 1230IV/18MB RAM/ OS3.0/4.4XCD-ROM from Pioneer