Don't Starve, my pickaxe can be upgraded

You start with a pickaxe, and upgrading it will increase your collection speed, and some special recipes will appear.
Items created from recipes can be upgraded individually.
After the workbench and spirit field recipes are out.
Liu Hen said: The world of Don't Starve is no longer a famine for me.
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[A doomsday survival item upgrade farming article, please support! ]

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