I played Unreal Tournament way back then, and I still have the dvd rom to play it on a computer. It was one of the few dvd rom games that I have for my pc back then. The game I had was Unreal Tournament: Game of the Year Edition. Now, thanks to Internet Archives, you can now play this for free on modern computers. Not sure why would you want to play it, but it is there if you would like to. In this game, you can play against the bots, which I did most of the time back then. Are you going to be playing Unreal Tournament again? Let me know in the comments below.

https://archive.org/search?query=unreal+tournament