Came across this article showing that Quake 2 is getting a facelift to utilise the 'power' of Nvidia RTX (ray tracing).
You'll need a Geforce RTX2060 minimum , and the first 3 levels will be free, but if you're already have Quake II in your Steam Library, you'll get the full game update free!
Not sure if it will be a separate entry in your Steam Library, or replace the old version.. most likely the former.
Coming June 7!
Nvidia: See you can play games with RTX on at high fps!