I bought Galactic Civilizations II Unlimited and Sins of a Solar Empire: Trinity on Steam a while back for my son. Unfortunately, he is not the least bit interested in even trying them out, so they both sit as unopened gifts in my Steam account!

If anyone is interested, I am willing to sell them for $5 USD or £3 GBP each, which is currently a quarter of the asking price on Steam. Paypal gift or Faster Payment only. Not interested in 'trading' as Steam so quaintly refer to their one way street.

Apparently, in addition, once you have the Steam key you can subsequently download directly from Stardock anyway, thus avoiding Steam entirely thereafter.

Please PM me for details if this offer appeals to you. Obviously you will need a Steam client to receive the game and key.