This key was won in the IndieGala challenges and as I already have it on Steam I'm afraid I can't guarantee whether it's a duplicate or not, so please be mindful of that. And I'm also unaware if there are any restrictions on activation.
If it does turn out to be a dupe then please accept my apologies and feel free either to contact me to delete the giveaway or just mark it as not received, which ever suits your purposes.
With that said, best of luck to those who enter.