Quake Live on Steam has just received a fresh update, this time bringing forth, in addition to new arenas, map rotation, medals, and other improvements, the support for Steam Trading Cards, which include great artwork and can be used to craft badges and earn other things. Quake Live launched quite some time ago but only recently did the free-to-play shooter reach the Steam digital distribution service from Valve, where many people decided to try it out and see if the old-school title still ma...