"Ballphin Free" Tuna is an item found in the Shipwrecked DLC. When opened, it gives the player a Fish Steak. It cannot be crafted, but can be found either in treasure chests from Messages in Bottles or from breaking Crates with a Hammer.
- The food contained can be preserved by not opening the item until needed.
- Since it does not spoil and can be opened at any time, the "Ballphin Free" Tuna can be used as a good emergency food source or left near Meat Effigies to be used after a resurrection.
- Its name is a reference to the animal that can be encountered in-game, the Bottlenose Ballphin.
- The name is also a nod to tuna cans being labelled as "Dolphin-Free".