What Is Eye Tracking in Gaming?
Using an eye tracker lets computers understand what gamers are looking at. Eye tracking technology adds to the gameplay experience by allowing you to use your natural eye movements as an additional input in gaming, complementing keyboards, mice and gamepads.
Benefits of Eye Tracking in Games

Natural Targeting
Locate and shoot at your enemies by centering on your targets when you look at them. Press the aim command, and efficiently shoot at the target you had in sight.

Infinite Screen
Your eyes direct the in-game camera, immersing you in the game world by automatically moving the screen according to where you look.

Immersive Graphics
HUD elements such as maps and status bar are only highlighted when you look at them, fading to give you a better full screen game experience when you're looking away.

Awareness
Characters and objects in the environment can sense when you are looking at them and respond to your gaze, allowing for more realistic - or supernatural - interactions.