Hello!
As some people in this thread have been saying, we placed the Black Dragon Egg at such a high requirement because it is a highly prized item.
More prized than even the Blessed Pink Diamond.
However, after reviewing past Playtime Events, and seeing how far over the highest reward tier players were able to reach, we agree that it's probably inconceivable to require 310 hours from everybody.
We tried to keep the rewards and requirements for this Event in line with past Events, but somehow that got away from us when we were planning out the rewards.
We apologize for this, and we apologize for making it seem like we don't care about your electric bill or the well-being of your computers.
As a result, we have decided to rework the rewards for the Autumn Falls Playtime Event.
Please check back to the original post in this thread to see the new rewards and requirements.
Thank you.