Talk:Tips and Tricks/@comment-92.106.26.123-20120210055031/@comment-4111213-20120210063439

Both of these questions are already answered on this wiki. 1) You MUST HAVE 10 or more friends or you will never get blueprints. 2) As stated on the Wonder of the World page, the Casinos ONLY DROP CRYSTALS DURING THE FINAL PHASE of construction. They cannot be pre-collected and you cannot collect them after you have 50.