UI elements and videos were actually recorded onto VHS and Betamax tapes, then filmed playing on old portable TVs to capture authentic distortion and tracking lines.
The station is filled with bulky, functional machinery and "kit-bashed" tools made from real-world objects like toasters and radios. How Does The Alien Work Off Camera Alien Isolation
Instead of a single script, the game uses two distinct AI entities that work together to stalk you:
This is an omniscient "Overlord" that always knows exactly where you are. It doesn't tell the Alien your exact location; instead, it provides "hints" or "whispers" to steer the creature toward your general area to keep the tension high.