Activating a game on Steam

I'd like to activate my games on Steam, such as my old Sims 2 games and other ones such as AoE, but when I put in thye code it says it's invalid.......what do I do?

The code is correct, but it's showing up as invalid...is there anything I can do?

Cheers! :)

Hm... I don't know why that wouldn't work. The best advice I can offer you is to ignore my post.SprinkleBiscuit

As for the TCs problem, you probably already read it :P you can't register anything you want, just a few games and by the looks of it, chances are that not a single one of the games you want to register, except the ones you mentioned, would work.

That's why it's not working.... Also, how can you add friends? I've tried but it says I need a Steam game first.IceBlazerX

Well what do you think is wrong Captain Obvious?

only certain cd-key styles can be added to steam.. even if the game is on steam it doesnt mean it matches

painkiller for example isnt recognized by steam as a game you can add, but overdose and ressurection are

rainbow 6 vegas 2 can be added but not R6V1

red alert 3 is another case.. dow 1-> dark crusade cant be added but soulstorm can.

there are several cases of this.

There are very few games that you can actually add on steam without buying them online or having steam come required with the retail package. You can add shortcuts within your steam interface, but you can't link most of them to your account.