Oops, that seems to be a pagination problem (they're only in the database once, as you can see here: https://nobsgames.stavros.io/ios/?name=room). I will investigate, thank you.
EDIT: iOS games have a rating that's quantized 0.5 apart, so all the 5-star games were sorting unstably. Sorting by "-rating, -reviews" seems to have fixed that (and is more useful), thanks.
I love the idea, and will use this to help find games for our family iPad.