Alien isolation was a game made entirely around the Xenomorph’s AI system which was in fact 2 AI’s. One was an “administrator” that knew where the player was, their inventory, what their objective is, tracks stuff like if you’re using one area to hide in often, then gives “clues” or goals to the second AI that is fully controlling the Xenomorph and onlu knows what the Xenomorph would know. The admin AI is tooled to not reveal specific player locations, and can even point it away from the player, if the game determines things are a bit too rough for you at the moment.

There are still some hard coded scripted “alien drops from vent in the room when player pulls the lever” but the AI’s from that point continue as normal.

Other games can’t just copy and paste this system as every aspect of game play, story pacing, level design, non xenomorph npc AI’s, we’re all made specifically for this system. And it’s why we’ll never get a sequel too