Very nice idea. I'm not entering, because I've never cared for Gothic, but yeah, the idea behind this giveaway is really awesome. Good luck on your attempt to clean up your backlog a little :)
(free tip: Use howlongtobeat.com to see which games can be finished the fastest, then start with those. Worked for me; I used to think my backlog was enormous and that it would take years to get rid of it. Turns out it was just a matter of a bit of dedication, and once I had gotten through the shortest ones, the backlog didn't seem that huge at all anymore.)