Warriors Orochi. It has the characters from Dynasty Warriors and Samurai Warriors combined to come together in one story across 4 campaigns.
Its a little meh, and there's no customization of characters except with a few buff skills, but its great as just a hack n slash, imo.
There's also a 2nd one but I don't think an English version has been released on PC, though I could be wrong since I haven't been up to date with Koei for months.
Edit: and yes you can use a keyboard or a controller. I'm not sure about the 2nd one but the first also has co-op but it requires each player to have the same set of 3 characters, so if you choose Lu Bu, Honda Tadakatsu, and Nobunaga Oda, your friend will also have those same characters but in the alternate costume you have.