Every so often you will come across a mystery box, indicated by a stream of stars going up the screen. Tap the box and you may find that it is unlocked. In these cases, the only way to unlock it is to spend some Diamonds. You are allowed to open one mystery crate for free each day - as well as one at a friend's farm.
The reason these are so important is that they can contain Diamonds, as well as the resources needed to increase storage and expand your farm. You will also get things like shovels and dynamite in the mystery crates, so they should definitely be sought out where possible.
Hay day is fun but I hate how much it costs with dimonds :(
A hay day cheat is get your barn and silo storage to 200 then all the screws wood bolts and all that stuff sell it for the max 270
and how do i open the box on my farm?
How do know when somebody puts something up for sale besides the newspaper?
I tried that and all boxes are locked
One a day is not accurate. If you don't close the box on ur farm, the mystery box will be in every friends farm. As long as it remains on yours. U can keep going back and forth to different farms. Just don't hit the x to get rid of the box. Click outside of the box and keep doing this. I have got lots of rewards in one day
Thanks for the tip