Popular Quakeworld Clients
- ezQuake – Actively developed and feature rich QW client
- FTEQW – QW engine which also supports NetQuake, Hexen II, and Quake II/III
- fodQuake – Alternative to ezQuake, lightweight
- ProQuake – ProQuake is a faithful WinQuake style Quakeworld client incorporating several common sense features
- FTEDroid – Android client, if you want it
There is also nQuake, but it isn’t really a Quakeworld client, rather a bundled version of ezQuake and other stuff to make life easier for new players. Also worth considering is freeQuake if you want to use an Open Source client and 100% GPL’d content.