Blade & Sword

Blade and Sword takes place 3,000 years in the past, albeit in an alternate past. It's difficult to make out exactly what is happening in the story, though, due to a poor English translation from the original Chinese. There's something about emperors and wars, but all you really need to know is that there's an evil wizard that you need to stop. Wizard Wen has opened rifts between three realms, and so creatures from the human, beast, and demon realms can now mingle freely. As such, all sorts of foul monsters have come to terrorize humankind, and it's up to you to figure out exactly what's wrong and how to fix it. Rather, it's up to you to kill a whole bunch of monsters single-handedly.