It's the way that they move. Sure, the background music filled with tense strings creates some anxiety in the first gameplay glimpse of Big Robot's Sir, You Are Being Hunted. And the low visibility in tall grass adds to the tension too. But something about the movement of the game's automaton antagonists chills me to the bone.
They stalk in without any kind of human variability in their animations. No little head adjustments or wobbling arms as they aim their weapons. Just cold-blooded execution. Watch them move as one as they get lured by a flare and swarm to a spot. That could be you that they move in on like that. Sweet jumping Jesus, that ain't right. It may be still relatively early in Hunted's development but this teaser already has me excited for this tweedpunk FPS.