Seaworthy

Seaworthy is a structure that spawns naturally in Shipwrecked DLC, and can be crafted in Reign of Giants DLC and the base game, when Shipwrecked DLC is available. It allows the player to link a Shipwrecked save slot with another save slot, allowing the player character to move between the worlds. Outside of Shipwrecked DLC, it requires 4 Nightmare Fuels, 4 Living Logs and the Sea Worther to craft, and a Shadow Manipulator to prototype.

Trivia

 * Before it was implemented in the "Wilbur vs. The Volcano" update Malfunctioning Novelty Ride was used as a placeholder for Seaworthy.