We are not offering key trade-ins. However if you don't wish to use Impulse, you can just download the game directly from the Stardock store and add it to your Steam games list.

Thank you very much!

What if the game isn't listed in the store, Like Civilization 4 and Soulstorm?

We only offer our own titles. You will need to deal with GameStop support if you are having any issues with any non-Stardock titles purchased through Impulse.

Thank you for that information.