Not just old games. There is a trend of modern "boomer shooters" that have similar visuals and mechanics as these classics. They're fun for a while, but none of them capture me as much as these games did back then. Part of it is because the originals were groundbreaking in many ways at the time, and seeing the same game rehashed with minor changes is not that engaging IMO.

This brutalist mod pack looks incredible, though, and I might just have to give it a try.