Question: what order to play kingdom hearts the story so far?
Answer: If you want a pure chronological order (mostly based on where most of the game's story is told) without stopping a game to pick up another one, go with Back Cover, BbS, KH1, Re:CoM, Days, KH2, Re:Coded, DDD, then 0.2. This is the order the games were meant to be played, and the order that the story flows best in.