So like I said in another post... the server me and Nyte are gonna set up will be cool... But in our quest to find games to host we came across a Quake III knock off called OpenArena... It's free and open source and pretty damn stable and EXACTLY LIKE QUAKE III IN EVERY WAY! The only difference is the textures. It even has the spot to enter your CD Key... though there's none needed...
You can get it here and I recommend it cuz it'll probably go on the server...
http://www.openarena.ws/?
