1) DOS game 2) FM Towns game 3) NEC PC-8801 game 4) Sharp X68000 game 
Gemfire (released in Japan as Royal Blood or ロイヤルブラッド Roiyaru Buraddo, Super Royal Blood or スーパーロイヤルブラッド Sūpā Roiyaru Buraddo in its Super Famicom version) is a medieval war game for the MSX, Nintendo Entertainment System, Super NES, FM Towns, Mega Drive/Genesis, MS-DOS, and later Windows, developed by Koe...