As some of you may have noted here, I have a couple of questions about Steam. And before you ask, yes I have gone over the Steam site, but it hardly answers anything. What is it? If I download a game with it, can I play it without loading Steam? I'm using GameSpy 3d to find games and would like to do the same with HL2 and any other game I'd buy through Steam. If I download HL2 from Steam, will I be able to install it on another machine without Steam on it? (Will I get an ISO like you do if you buy Savage over the net, or?) When you enter your cd-key into steam, will you be able to play with that key on another system where you have the game installed, but don't have steam installed? (Will the cd-key be bound to the Steam Id, so as to make it useless for any other machine?) This also begs the question, since you only get a "buy-key" and not a cd-key this leads me to think that you'll only be able to use any game downloaded through Steam. One of the reasons I'm so curious about Steam is that I don't want to start using a system which might fail and leave me with several unusable games. And I don't want to be stuck to using only valve's system if I want to use Gamespy 3D, or another system. So all replies appreciated.