July 29, 2016 Update
The levels are no longer timed. They havent been times for a few updates now, but the latest update requires more of the purple gems/diamonds to upgrade dragons. I liked it better when you could evolve dragons over time rather than pay diamonds since opening a new level pack is so expensive.
The quick play game also changed and it is harder to reach the score needed to obtain the rewards. They have added lower reward levels, but the scores start over after each loss, so it is more difficult to reach higher reward levels.
I wish I had stuck with the previous update. At least for this update I was given a choice to update. The game usually updates automatically, but this time I had to hit update in the App Store. I would suggest waiting on this update if you get a choice too! I would have evolved all my dragons first!
Past Review:
The game used to be more fun to play, but recent updates have made it less enjoyable. The side quest ship has been removed, the colored stones cant be collected for rewards anymore, and the main levels all seem to be timed! I dislike being rushed through any game! Also, most levels and game packs are requiring more and more gems/upgrades/coins to open or do anything. For those of us out there that refuse to purchase coins and gems in an app to play, be prepared to suffer through numerous ad videos to earn coins and gems. At this rate, I have not been able to play an actual level in a few days. The game seems to change constantly with new updates, so maybe there is hope for improvement.