| NEC PC-9801 Series 5.25in. disk |  Band-kun - Sound Entertainment | 1990 | KOEI Co., Ltd. Japan |
| Nintendo NES cart. |  Bandit Kings of Ancient China Model NES-XJ-USA | 1990 | KOEI Co., Ltd. Japan |
| Sharp X1 5.25in. disk | Daikoukai Jidai Model KN10040010 | 1990 | KOEI Co., Ltd. Japan |
| NEC PC-9801 Series 5.25in. disk | Daikoukai Jidai Model KN10040020 | 1990 | KOEI Co., Ltd. Japan |
| NEC PC-9801 Series 3.5in. disk | Daikoukai Jidai Model KN10040030 | 1990 | KOEI Co., Ltd. Japan |
| MSX 2 disk | Daikoukai Jidai Model KN10040040 | 1990 | KOEI Co., Ltd. Japan |
| MSX 2 cart. | Daikoukai Jidai Model KN10040050 | 1990 | KOEI Co., Ltd. Japan |
| Sharp X68000 Series 5.25in. disk | Daikoukai Jidai Model KN10040060 | 1990 | KOEI Co., Ltd. Japan |
| NEC PC-98 Note 3.5in. disk | Daikoukai Jidai Model KN10040070 | 1990 | KOEI Co., Ltd. Japan |
| NEC PC-9801 Series 5.25in. disk | Daikoukai Jidai Model KN10071010 | 1990 | KOEI Co., Ltd. Japan |
| MSX 2 disk | Daikoukai Jidai Model KN10071030 | 1990 | KOEI Co., Ltd. Japan |
| MSX 2 cart. | Daikoukai Jidai Model KN10071040 | 1990 | KOEI Co., Ltd. Japan |
| Fujitsu FM Towns CD | Daikoukai Jidai Model KN10071050 | 1990 | KOEI Co., Ltd. Japan |
| NEC PC-8801 Series disk | Daikoukai Jidai Model NFKN17014 | 1990 | KOEI Co., Ltd. Japan |
| NEC PC-8801 Series disk | Daikoukai Jidai Model NFKN17015 | 1990 | KOEI Co., Ltd. Japan |
| Nintendo Famicom cart. | Famicom Top Management | 1990 | KOEI Co., Ltd. Japan |
| Fujitsu FM Towns CD | Ishin no Arashi Model FWKN14003 | 1990 | KOEI Co., Ltd. Japan |
| Nintendo Famicom cart. | Ishin no Arashi Model KOE-XK | 1990 | KOEI Co., Ltd. Japan |
| NEC PC-88 VA disk | Ishin no Arashi Model NIKN12006 | 1990 | KOEI Co., Ltd. Japan |
| NEC PC-9801 Series 3.5in. disk | Ishin no Arashi Model NIKN15001 | 1990 | KOEI Co., Ltd. Japan |
| Sharp X68000 Series 5.25in. disk | Ishin no Arashi Model SJKN13011 | 1990 | KOEI Co., Ltd. Japan |
| NEC PC-8801 Series disk | L'Empereur Model KN10021010 | 1990 | KOEI Co., Ltd. Japan |
| Sharp X1 5.25in. disk | L'empereur Model KN10021020 | 1990 | KOEI Co., Ltd. Japan |
| NEC PC-9801 Series 5.25in. disk | L'Empereur Model KN10021030 | 1990 | KOEI Co., Ltd. Japan |
| NEC PC-9801 Series 3.5in. disk | L'Empereur Model KN10021040 | 1990 | KOEI Co., Ltd. Japan |
| MSX 2 disk | L'Empereur Model KN10021060 | 1990 | KOEI Co., Ltd. Japan |
| MSX 2 cart. | L'Empereur Model KN10021070 | 1990 | KOEI Co., Ltd. Japan |
| NEC PC-8801mkIISR disk | Nobunaga no Yabou - Bushou Fuuunroku Model KN10111010 | 1990 | KOEI Co., Ltd. Japan |
| Nintendo Game Boy Cart. | Nobunaga no Yabou - Game Boy Ban Model DMG-NYJ | 1990 | KOEI Co., Ltd. Japan |
| Nintendo Famicom cart. | Nobunaga no Yabou - Sengoku Gunyuuden Model KOE-NU | 1990 | KOEI Co., Ltd. Japan |
| Fujitsu FM Towns CD | Sangokushi II Model KN10011010 | 1990 | KOEI Co., Ltd. Japan |
| Sharp X68000 Series 5.25in. disk | Sangokushi II Model KN10011020 | 1990 | KOEI Co., Ltd. Japan |
| NEC PC-98 Note 3.5in. disk | Sangokushi II Model KN10011030 | 1990 | KOEI Co., Ltd. Japan |
| Nintendo Famicom cart. | Sangokushi II Model KOE-XL | 1990 | KOEI Co., Ltd. Japan |
| MSX 2 disk | Sangokushi II Model MXKN12019 | 1990 | KOEI Co., Ltd. Japan |
| MSX 2 cart. | Sangokushi II Model MXKN12022 | 1990 | KOEI Co., Ltd. Japan |
| NEC PC-9801 Series 5.25in. disk | Sangokushi II Model NFKN14032 | 1990 | KOEI Co., Ltd. Japan |
| NEC PC-9801 Series 5.25in. disk | Sangokushi II Model NHKN15011 | 1990 | KOEI Co., Ltd. Japan |
| NEC PC-9801 Series 3.5in. disk | Sangokushi II Model NHKN15012 | 1990 | KOEI Co., Ltd. Japan |
| Sharp X1 5.25in. disk | Sangokushi II Model SJKN11012 | 1990 | KOEI Co., Ltd. Japan |
