> "I think it's really struck a chord with how people are feeling in the world right now - the world is in quite a stressy place," Rigden said. "With the game you are able to focus in on one thing, which kind of blocks all the other distractions out - it's a pure form of meditation."

People love providing such explanations to various observed trends, but never consider looking back to check if trends are new in the first place. FWIW, I don't see how these games are allowing players to "focus in on one thing" (and put things in order) any more than Solitare or Farmville.