Must be done with 4 controllers.
The game will introduce you to the concept of mining cobbles of stone and laying it on empty floor slots. For this achievement, have your main character pick up the pickaxe with
, face the stone pile and hold
to mine, repeating this 4 times. Each strike will create some cobblestone to pick up. Afterwards, drop the pickaxe with
and have each controller pick up one set of cobble by holding
. Once all 4 players have picked up their cobble, the achievement will unlock.