Damn TIL that not only Half-Life 2's eyes are still considered pretty much the gold standard for character eyes in video games 2 decades later, but also unlike almost every other game instead of using 3D eyeballs they're just almost-flat planes with a shader applied to them that makes them look better than the really 3D stuff
https://cohost.org/joewintergreen/post/3081256-dev-scoops-simulati