Drop Your Orphan Keys Here thread (Not sure if key got used or DESURA / other platform keys)

Orphan key = A key you're uncertain whether or not got activated (or other platform key like Desura or GOG)

In case you have orphan keys laying around

Drop them here

You might make some lucky bastard happy

Note: Feel free to drop other keys you don't need for other platform like Desura or GOG or anything else.