Right now you can pick up Unreal Gold for free on steam.
If you have never played unreal you should! I played this back in the day and it really was WAY ahead of its time graphically back then when compared with other shooters of the time,I have fond memories running this using 3DFX glide drivers on my voodoo 1 card and then I played it again with a voodoo 2 card!
The music in this game is fantastic and I think I need to play this again with the Old Unreal patch: https://www.oldunreal.com/oldunrealpatches.html
I have the original game on CD but I’m adding this one to my steam library
GOG tipped me off about this in an email this morning