i'm in your conscience
That thread title is...really awkwardly worded. Would you mind if I changed it to perhaps "Which games do you have and which have you lost?" That's basically what this is.
I think that's it. I don't lose games often. I lost my original copy of Yellow back when I was a kid though. I also lost two copies of Pearl, however I found the second one I lost. I gave it away as a gift, as I didn't need more of my least favorite game.