Redeeming CD keys of the same game?

[standardsystem]

I know if I go on humble bundle and buy it twice, the steam key can't get redeemed since I already have the game on my account (meaning I can't really trade the game on steam), but if I have Civ 5, and I enter in the CD key, what will happen?

[CrystalRoff]

You already own this product , or this product has been redeemed on another users account. 1of those will happen.if you buy twice on humble bundle the other package bought will have links to gift messsage to friends in their email

[standardsystem]

So if I bought 2 copies of Civ 5 from somewhere else, and they have different CD (not steam) codes, one won't get added to my account?

[Kargor]

Don't rely on this, though.

First of all, if a key contains more than one item (aka it's a bundle/package), then it WILL activate regardless. Stuff that you already own will simply be discarded, you only get the stuff that you don't have.

Every once in a while, there are also claims that Steam will silently discard a key if it's just a slightly different version of something you already have.

Just keep in mind that Steam only cares about money. if you loose a key without getting anything, or not all of it, they are happy. So be careful.

[standardsystem]

Oh, that makes sense. Thank you.

[npvgr]

Good afternoon to all, I have a similar question, i bought total war Rome back in 2005 and 2 years later i bought the same game with the 2 expansions, Barbarian invasion and Alexander, recently i got the urge to play it again but unfortunately i made a mistake, i redeemed the code for the stand alone game and not for the game with the expansions, i tried to use the second code but it's not accepted saying that i already have the game in my library, is there anything to be done?

[xarvn]

npvgr: Click this.

Are the two items in the page highlighted with the blue "IN LIBRARY" tag? If so then you already have everything.

[npvgr]

No it's not, the Alexander dlc is not highlighted, only the initial game.

[npvgr]

xarvn I have uploaded i picture so you can see what i mean, thank you for your help.

[crunchyfrog]

Originally posted by npvgr:

No it's not, the Alexander dlc is not highlighted, only the initial game.

Largely speaking it's down to what the package is.

If this key is for the BUNDLE of games plus DLC, you're stuck.

[xarvn]

Originally posted by npvgr:

No it's not, the Alexander dlc is not highlighted, only the initial game.

Are you absolutely sure that the game package includes Alexander? I ask this because Steam has two "collections" which have almost the same name but with only one containing Alexander:

1. Rome: Total War™ - Collection (id: 4760)
2. Rome: Total War™ Collection (id: 463)

Although only the 463 package containing everything is available for purchase currently, at one time the 4760 collection as well as the stand-alone Alexander expansion were available. It would have been very easy to have mistakenly purchased the 4760 package and assumed that it had the Alexander expansion. If so then you will need to purchase the full 463 package. Otherwise, I would contact Steam and see if they can rectify the situation.