The PC-88 version of Ys 3
was (illegitimately) ported twice by fans to the Sharp X1 Turbo and Sharp MZ-2500 computers. Since all three computers share the same Z80 processor and have similar graphics capabilities, the work mainly consisted of rewriting IO routines.
NES translation patch
On January 7th, 2005, fan translation group Vice Translations
released a complete Japanese-to-English patch for the Nintendo version.