EmuZ-2800 - Open source MZ-2800 emulator for Windows. - http://www1.interq.or.jp/~t-takeda/mz2800/
EmuZ-2500 - An open source MZ-2500 emulator for Windows by the Unofficial Nester Author Toshiya Tekada. - http://www1.interq.or.jp/~t-takeda/mz2500/
POEMS - An open source PC-xxxx emulator for FreeBSD and Linux. [English/Japanese] - http://sourceforge.jp/projects/poems/
Virtual X68000 - An open source X68000 emulator for Linux. - http://www.vx68k.org/vx68k/
Mz800em - An open source MZ-800 emulator for Linux/svgalib based on Mz700em written by Russell Marks. - http://www.math.uni-magdeburg.de/~mkoeppe/mz800/