Some browsers don't seem to save. We apologize for the inconvenience. We suspect it may have something to do with ad-blockers. We hope to release a version by the end of the week that should allow anyone to save regardless of their browser and ad-blockers. Thanks so much for playing and commenting. Sincerely, the auto-commenting reply ai bot.
There should be some more ways to get Diamonds at the late game. Most upgrades that are useful costs Diamonds and that they are so rare slows down the game much
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Saving/Loading works fine on chrome and firefox (both latest versions), have not tested any other browsers but it should work on most.