KOEI Teitoku no Ketsudan IV + Power-up Kit Set PC Windows Version Supported OS Teitoku no Ketsudan IV Main Game: Windows 95, 98, Me, 2000 Power-up Kit: Windows 98, Me, 2000, XP Operation has been confirmed on a virtual machine running Windows XP. Gameplay and completion were confirmed without issues. *Confirmed July 2025, as shown in image 3. It has also worked on Windows XP in the past. While there are some scratches on the outer box, the manual, map, and other necessary contents are all present, and it is in relatively good condition considering its age. Please consider this is an old software. Contents are shown in image 2. The Power-up Kit CD has scratches. Image 8 Gameplay was possible, but please be aware of this beforehand.