Aliens: Isolation is the pinochle of how to do a stalker enemy right in videogames, and it manages to keep you at baseline uneasy and creeped out. With the use of the incredible atmosphere of a damaged space station, being constantly hunted by people, Androids, and the worst of all, the Xenomorph leaves your in a constant state of dread of what's around the corner or behind those doors. You are constantly hiding, quietly moving, or silently taking out the enemies you can making it feel like you never get a moment to breath.