Posted by: burritosenior
It says what to do in the achievement description mate. Earn 7 exp. in a playlist on the 7th of any month.
And I know for a fact the searchbar could provide results regarding Sandbox. But why do that? That's boring. Build a tunnel to the skull yourself! That's a lot more fun.
I'm a little confused though. Do I have to earn 7 total? Or can I have 6 they day before and then get 1 on the 7th?