The Research mechanic in a Terraria Journey Mode requires players to consume a set quantity of an item to unlock it permanently for a specific character. Once the requirement is met, the Duplication menu provides an infinite supply of that item, removing the need for repetitive gathering or farming. This Journey system streamlines the gameplay experience by allowing for unrestricted building and easier access to rare consumables.
1. Join the game with a Journey Mode character. Only Journey mode characters can join Journey world.
2. From the Inventory menu, open the Power menu.
3. Go to the Research tab.
4. Research the desired item. A required number of items is consumed to complete the research.
Note: An item is complete once it cannot be researched any further.
5. Go to the Duplication tab.
6. Select the desired researched item to duplicate. Right-click the item to stack one.