Serial Number

[she]

You bought it from the FG store, right? I did a little digging on the forums and found this:

You have to send me a pm with some details about what name and email you used when buying the game so that I can dig it up!

It was from a few years back, but hopefully it's still accurate.

Editing my post to include this, too:

Check your spam box for the order receipt from Esellerate as well, it also contains the serial etc. So good to save that.