The pickaxe as seen by the player's 1st person view in-game.
The Pickaxe is a tool that is held by the player and used to dig into the game's world terrain and collect materials. It can also be used as a weapon to damage Zombies.
As of Alpha 37, there is also a gold pickaxe available to equip because of material hardness being introduced. This is also being used to demonstrate tools of different materials and their possible properties in-game.