How do we unlock the day 13 prize?

You dont. it's to indicate the start of next act

So I should go ahead and cash in all my antlers now?

The antlers are the prizes currency lol

"4junk3000;1520168" wrote:
So I should go ahead and cash in all my antlers now?

Yes they'll disappear soon, along with catnip and figurines.

Is there no way to get the 13th day reward? Why is it there then?

"drmartinus77;1520271" wrote:
Is there no way to get the 13th day reward? Why is it there then?

Wait until tomorrow because that's when Act 2 starts and the new currency comes in.

I presumed we get it tomorrow? :neutral:

yes its the 1st prize of act 2: more stones lol