[old woman memories mode]

I remember registering my CD key of HL1 on Steam and was surprised when they gave me the expansions for free. Cool, because I didn't have them.

I remember buying The Orange Box on Steam. I remember it because Steam gave me a warning because I already had Portal - it was free at some point. Was a bit miffed when TF2 went free to play later on.

And I somehow still haven't played HL2 on Steam, I think? I played it about 1/3 way on Xbox 360. Played the shit out of Portal on 360 though.