I use vgrebirth.org to track my game lists, though admittedly I haven't put all my games in yet, since I have so many. I've yet to find a game that I own which wasn't available on the site. Only problem is, it doesn't show the value of everything like the site Kibs posted.

Relevant link: http://vgrebirth.org/community/games...=LeviathanMist

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