Unfortunately I came across this recently. Mirror Mysteries was on sale, so I checked under M in my Purchase History and didnt see it there. So I went ahead and bought it. As soon as I started playing it, I realised that I did have this game already. On doing some research on BFG, I found that I had purchased the game under the title THE Mirror Mysteries, whereas now it wass being offered for sale without THE!!
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Boobie