For a limited time only, buy any qualifying NVIDIA GeForce graphics card and get a key code for a free trial of Starcraft 2: Wings of Liberty.
If you have to buy something, then it's not free.
Well you can also have a friend who bought starcraft 2 give you his/her 2 week free trial voucher. But then again, I guess that wouldn't be free either. After all, who could put a price on friendship?
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