Fallout (video game)/Nightmare Fuel

• Unprepared players can easily run into the Super Mutants and find themselves imprisoned in jail, with the Lieutenant practically sneering at them and no easy way to get out.
• The Master. Every single thing about him is creepy and unnatural.
• The Game Over screen can look startling for first time players. A white fade out to an image of the skeletal remains of your character. Can be especially startling if your character dies of dehydration or radiation poisoning, as one might not even know what killed them and thus the screen seems to appear as a Jump Scare.