Ports of Entry: Koei

Unknown lead platform:

 

Nobunaga's Ambition (1983 version)

First released for FM-7, PC-8000, PC-88, and PC-98 in 1983

Released for PC-6001, Sharp MZ-80K, and Sharp X1 in 1984

Genghis Khan

First released for PC-98 in December 1987

Released for PC-88 in January 1988

Released for DOS and MSX in 1988

Bandit Kings of Ancient China

First released for PC-88 in March 1989

Released for Sharp X1 in April 1989

Released for DOS in November 1989

Released for Sharp X68000 in December 1989

Released for FM-7 and Macintosh in 1989

Released for FM Towns in February 1990

Released for NES in June 1990

Released for Amiga in 1990

Uncharted Waters

First released for PC-88 in May 1990

Released for PC-98 and Sharp X1 in July 1990

Released for FM Towns in November 1990

Released for Sharp X68000 in December 1990

Released for MSX in 1990

Released for NES in March 1991

Released for DOS and Macintosh in 1991

Gemfire

First released for NES in August 1991

Released for PC-88 in September 1991

Released for PC-98 in December 1991

Released for MSX in 1991

Released for Sharp X68000 in March 1992

Released for FM Towns in May 1992 

Released for Genesis in June 1992

Released for SNES in October 1992

Released for DOS in 1992

Aerobiz

First released for SNES in April 1992

Released for PC-98 in October 1992

Released for Genesis and Sharp X68000 in November 1992

Released for FM Towns in 1992

Genghis Khan II: Clan of the Gray Wolf

First released for PC-88 in July 1992

Released for PC-98 in October 1992

Released for MSX in December 1992

Released for FM Towns and Sharp X68000 in February 1993

Released for Genesis, NES, and SNES in March 1993

Released for Sega CD and TurboGrafx CD in September 1993

Released for DOS in 1993

New Horizons

First released for PC-98 on February 1993

Released for FM Towns and Sharp X68000 on April 1993

Released for SNES on February 1994

Released for Genesis on June 1994

Select chronology: 

 

Title	Lead platform	Date	Contemporary ports
The Battle of Kawanakajima	Sharp MZ-80C	1981-10	Extant ports for PC-8801 and PC-8001
Night Life	PC-88	1982	1983 port to FM-7
Nobunaga's Ambition	???	1983	Same-year releases for FM-7, PC-8000, PC-88, PC-98 1984 releases for PC-6001, Sharp MZ-80K, Sharp X1
Romance of the Three Kingdoms	PC-88	1985-12	1986 ports to various Japanese computers
Nobunaga's Ambition	PC-88	1986-12
Genghis Khan	???	1987-12	First released for PC-98 1988 releases for PC-88, MSX, & DOS
Bandit Kings of Ancient China	???	1989-3	Same-quarter releases for PC-88 and Sharp X-1 Same-year releases for DOS, FM-7, Macintosh, and Sharp X68000 1990 releases for Amiga, FM Towns, & NES
Romance of the Three Kingdoms II	PC-88	1989-12	1990 ports to NES and various computers
Uncharted Waters	???	1990-5	Same-quarter releases for PC-88, PC-98, and Sharp X1 Same-year releases for FM Towns, Sharp X68000, and MSX 1991 releases for NES, DOS, & Macintosh
Gemfire	???	9/27/1991	Same-year releases for NES, PC-88, PC-98, and MSX 1992 releases for Genesis, SNES, & various computers
Operation Europe: Path to Victory 1939-45	PC-88	12/21/1991	1992 ports to various Japanese computers
Romance of the Three Kingdoms III: Dragon of Destiny	PC-98	2/20/1992	Same-year ports to various platforms 1993 ports to DOS, Sega CD, & TurboGrafx CD
Aerobiz	???	4/5/1992	Same-year releases on various platforms
Genghis Khan II: Clan of the Gray Wolf	???	7/30/1992	Same-year releases on PC-88, PC-98, & MSX 1993 releases on various platforms
New Horizons	???	1993-2	Same-quarter releases on PC-98, Sharp X68000, & FM Towns 1994 releases on SNES & Genesis
Romance of the Three Kingdoms IV: Wall of Fire	PC-98	2/13/1994	Same-year ports to FM Towns & SNES 1995 ports to various consoles