I agree that Forge could be tossed in LBP's category even if it's not the main focus of the game.
Perhaps for the choices part you should be more specific, we actually had two series this generation that not only had choices but they spanned multiple iterations of the series: Mass Effect and The Walking Dead. That's been particularly interesting for me, since choices have been around for a while, but usually their consequences only span the game you are playing directly.
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