If you merge 3 things, they turn into 1 better thing

But, if you merge 5 things, they turn into 2 better things!

Step 1
Line up 5 objects for a merge:

Step 2
Let the merge happen:

Step 3
Prosper! You've gotten an additional bonus object for less effort!

Tip: There is an option for “Require Overlap” for merging in camp!You can turn this on in Game Settings (gear icon on the world map) so that when you are in camp, in order to merge items, you need to drag one on top of the others. This can help prevent accidental merges, and it will let you organize your camp more easily.