- Get the game data: Quake III Arena on Steam or GOG, or the original CD.
- Challenge ProMode Arena is the classic competitive Quake III mod that has faster movement, its own physics, and the duel/CTF scene that defined Q3 esports.
- It runs on its own engine, CNQ3 - grab it from PlayMorePromode (it bundles the CPMA mod), point it at your Quake III
baseq3 data, and you're ready.
Joining a server Copy the connect string, open the console with ~, and type /connect ip:port.