What nvidia codes are able to activate?

All Steam Works games that they offer.

I think you did not understand, for example, the codes of the games " Batman Arkham Knight " or " Metal Gear Solid V: The Phantom Pain " .......they are still available to activate in the nvidia website?

Only rise of tomb raider atm.

If you already have the code redeemed from the card, then the Steam key is still active, and you will be able to activate MGS V TPP or even Batman Arkham Knight, but currently, only Rise of the Tomb Raider is running.

As for the expiration date, check Terms & Conditions. For RoTT, it's February 16th, so you have about a week left.

Not sure.. i know the phantom pain one ran until September 8, 2015 - but i activated mine on October 20th

Well, its that i need know, if new Batman or new mgs its still avaible to activate.
i need one code of both, can trade things....

If you have Nvidia code for Batman , its useless ...
IT expired already :/

There was a promo for Dirt Rally (and a whole lot of other things, those bronze, silver, gold tiers) that ended on the 31st of December, but they made a new one that ended on Jan 31st (for dirt rally, arkham knight (I think), a few others), those keys you can still redeem until the end of March, I think. They were for some new video card.

There's the tomb raider one also.

oh, lol, my bad, was thinking of AMD rewards.

yeah, just tomb raider for nvidia.

Thanks all for the comments :)