Amazing game - I spent several years in the early 2000s playing a spinoff called Infantry: https://en.wikipedia.org/wiki/Infantry_(video_game). Sony ran it into the ground and I wound up trying SubSpace since it was supposedly the predecessor and had the same engine, but never got into it.

While typing this up I discovered Infantry is actually still alive, resurrected by some diehards on free player-maintained servers! Can't imagine that happening for any of today's games in twenty years. It's probably just nostalgia, but to me the early 2000s were a special golden age of PC gaming and community that will never be topped.