I think it's called Nobunaga's Ambition: Iron Triangle in the US but it's only on the console and I don't recommend playing any KOEI strategy games on console since saving/loading is annoying on a console and it's something you do a lot.
Superficially this is a real time strategy game where you're a warlord trying to unify Japan. Realistically this is more like a game of Starcraft elements RPG or whatever plotting you against the united ninjas of Japan. The first thing you should do is use an editor to give yourself half a million soldier (more than rest of the country put together) and max gold/food and probably max tech too. The computer does not receive resource advantages even on highest difficulty as per KOEI games so it's just a matter of time (like 50 hours) before you have your stuff maxed out and this will save the boredom. You might think the computer is a pushover since they usually field like 20K soldier and now you have 500K, but that's only the soldiers you can see. There are local miltias and local navies that field army the size of 50K+ with S class tactics for everything that generally comes out from nowhere to fight your army while the player you're trying to kill is cowering in his castle, and these guys are tough. If you think they're really militias and try to walk around them you'll probably get annihilated really quick. In fact usually the local miltias are a lot stronger than whoever you're trying to defeat.
And then there are the ninjas. Here is where your Naruto knowledge can come in handy. If you see any force that sounds like they could be someone from Naruto they're probably a ninja, and ninjas are really powerful. Your first encounter with them will probably be your unit alert when a ninja has killed 50K people by himself (Naruto is apparently real in ancient Japan). There's pretty much no protection against whatever the heck they're doing. Whenever you see a ninja appear one of your unit is probably going to die no matter what its status is at. It could have 15000 man with max morale led by a guy with 130 in all stats (normal max is 120) and it still wouldn't matter. I think you're supposed to either kill all the ninja clans (who are surprisingly bad at defending their own home) before you wage war, or try to bribe them on your side, but ninjas only fight for people on the defense I think (the AI won't have units out to fight you anyway if you've a numerical advantage), so you probably should just kill them all.
Actually, the game is more like Naruto RPG now that I think about it. Trying to beat the game without getting rid of ninjas is very difficult even on easy. I got destroyed by them multiple times already.
Superficially this is a real time strategy game where you're a warlord trying to unify Japan. Realistically this is more like a game of Starcraft elements RPG or whatever plotting you against the united ninjas of Japan. The first thing you should do is use an editor to give yourself half a million soldier (more than rest of the country put together) and max gold/food and probably max tech too. The computer does not receive resource advantages even on highest difficulty as per KOEI games so it's just a matter of time (like 50 hours) before you have your stuff maxed out and this will save the boredom. You might think the computer is a pushover since they usually field like 20K soldier and now you have 500K, but that's only the soldiers you can see. There are local miltias and local navies that field army the size of 50K+ with S class tactics for everything that generally comes out from nowhere to fight your army while the player you're trying to kill is cowering in his castle, and these guys are tough. If you think they're really militias and try to walk around them you'll probably get annihilated really quick. In fact usually the local miltias are a lot stronger than whoever you're trying to defeat.
And then there are the ninjas. Here is where your Naruto knowledge can come in handy. If you see any force that sounds like they could be someone from Naruto they're probably a ninja, and ninjas are really powerful. Your first encounter with them will probably be your unit alert when a ninja has killed 50K people by himself (Naruto is apparently real in ancient Japan). There's pretty much no protection against whatever the heck they're doing. Whenever you see a ninja appear one of your unit is probably going to die no matter what its status is at. It could have 15000 man with max morale led by a guy with 130 in all stats (normal max is 120) and it still wouldn't matter. I think you're supposed to either kill all the ninja clans (who are surprisingly bad at defending their own home) before you wage war, or try to bribe them on your side, but ninjas only fight for people on the defense I think (the AI won't have units out to fight you anyway if you've a numerical advantage), so you probably should just kill them all.
Actually, the game is more like Naruto RPG now that I think about it. Trying to beat the game without getting rid of ninjas is very difficult even on easy. I got destroyed by them multiple times already.