I went to it . <| sep |> I came here to ask this directly too . Thanks ! <| sep |> I mean , I certainly don ' t use any 3 rd party keyboards and don ' t know anyone who does . I agree default apps has much bigger implications for the way the App Store competition works and the way Apple markets iPhone <| sep |> You cannot play DD without the Player ' s Handbook . From my point of view , the rest are all optional . Monster Manual is amazing , so is Volo ' s when I get my hands on it , and the Dungeon Master ' s Guide is super optional , you only really need it if you want to create and build a world and campaign from scratch and can ' t think of anything . But the PHB is the book you NEED need . It even has a minimonster manual in the back of it .