Purists will hate to hear it, but this is largely due to the fact that Quake Live has done a pretty great job of replacing Quake III. You’ll enjoy a little ego boost until you realise that your huge frag count is just down to the fact that you’re blasting mindless drones away. Now for the bad news: while servers are still online, outside of officially arranged clashes they’re largely filled with bots. This overhauls the physics, and adds a load of new mechanics that continue to be used in competitive play. Then there’s the great CPMA, which came out in 2000 and is still being worked on. If you want Arena to really look the part with high-res textures, as well as bug fixes and UI improvements, grab High Quality Quake.
These games are alive and fragging, you just need to know where to find them