All that movement chatter brought to light that classic Quake 3 mod Urban Terror is now Urban Terror HD. It seems that the game, which I believe has been a kind of standalone mod for a couple of years now, thanks to ioquake3, will become a standalone Quake 3-licencee in its own right. It will however remain free-to-play and is going to continue to develop as a free shooter support Windows, Mac and Linux variants. Good news, I think, as this is a minor manshoot classic. The installers are over here.
More of this sort of thing