Hey there. Honestly thousands of people have downloaded this game during this sale, which is super awesome! It's way more than I expected. However generating and distributing Steam keys for everyone could turn into a full time job and I'm a little too busy with life these days. If you want to claim it you just have to pay something for it. A few folks have paid $0.50 so maybe that's the minimum.. I don't really know. You could trying paying a penny, maybe! :)