I bet if someone made a turn-based isometric RPG where your companions are a harem and you're on the hunt for anime tiddies, Dynamo would snap it up instantly.

On a more serious note, similar gameplay style does not mean that a game is the exact same as Fallout. There's lots of different factors to take into account, but I suppose that's not what we want when we're looking for popular games to shit on to make ourselves look like hipsters.