>>713339645It's not about the code, no. You can read the patent yourself if you want https://patents.google.com/patent/US10926179B2/en
It reads a bit autistic because they always have to specify that it's a computer doing these things so they talk about a game character doing something "via a processor" and shit like that but the tl;dr is that they patented the whole nemesis system, including characters coming back, characters remembering how you killed them previously, characters changing their attributes when they reappear (e.g. being immune to backstabs if you killed him with a backstab)
So no, you can't just make your own system without getting raped in court