the 3D to 2D projections happening in realtime engines don't 'curve' anything the way a real lens does. A fisheye lens in real life will turn some straight line

the 3D to 2D projections happening in realtime engines don't 'curve' anything the way a real lens does. A fisheye lens in real life will turn some straight lines into curves, you'd never see that in a video game (unless it's a post processing effect that fakes it). So I suspect that there aren't really any games that have the ability to do a 1:1 projection that perfectly matches the curve of a monitor, although there are probably some fast approximations.