Ok, so here's a question ... sorry, I'm not clued up on how this is going to work for Mac users who used to use Windows.
I've signed into my Steam account, but there's no sign of Half Life 2 for the Mac yet.
I've bought Half Life 2 when it launched on PC, and still have my copy here.
When Half Life 2 comes out for the Mac via Steam, will I be able to download it for free since I've already paid for the Windows version?
Cheers.
If you've never registered it with Steam, you will have to. I assume you have a boxed copy on multiple CD's along with a serial. You will have to register that serial for Half Life 2 on Steam.