This is in a foreign language to me, so I cannot play it on steam. However, it is abandonware so I downloaded it for free (very easy to find). I also downloaded the manual too. Both are in English.

To play the game, I needed to download dos box, and this was also for free.

I unzipped the game file, and dragged the "Koei" file onto the dos box icon on my desktop. This starts the game. I pressed Alt+Enter to maximise the screen.

I have bought it on Steam as I feel it's only fair to pay for the game.

The game is just how I remembered it from the 1990s.

What's the game about?
You control a nation on the world map. You are a character in the world with skills. You have action points to spend each season. You spend these to manage your nation, its army, your generals, and spend time with your family. It's like a basic Crusader Kings. Except you can control your armies in battles.

The game is well designed and balanced. The battles are simple but fun. Both the nation management and battles are turn-based.

What do I enjoy about the game?
1) Seeing my nation develop by growing its economy and food productivity.
2) Picking my army composition to perform better in tactical battles.
3) Seeing how the world develops.
4) Spending time with my family to raise good kids, from which I can choose a successor when my character dies of old age.
5) The sandbox nature of the game. by which I mean there's no research or similar progression, so you can play for as long as you want (many generations of rulers) and it's still the same great game. When I invest time in a game, I hate it when it ends, or gets to a state where the outcome is determined.
6) Watching AI empires rise and fall. They fall because rulers have to appoint generals to control their other lands, and some of these are not loyal. (Hint: your wife will sometimes let you know which of your generals is not loyal when you spend time with your family).
6) Conquering some nations and giving it to my generals to manage. You can only control one nation at a time, though you can set policies for lands you have conquered.

The simplicity and balanced nature of it are what attract me still after all these years.

For me this game has sentimental value. I hope my review helps others to enjoy this classic game.