My Favorite Video Game Mechanic Was Patented and Now It's Being Wasted
We probably won't see the Nemesis system in other games any time soon.

The Nemesis System was first introduced in the 2014 game Middle-earth: Shadow of Mordor and improved in its 2017 sequel, Shadow of War. It is a groundbreaking video game feature that leads to unique storylines but it was patented so it seems like it will remain unused until August 11, 2036, when the patent expires.