Iron Chests Upgrades

The upgrade items are the heart of the mod's convenience.

• Each upgrade converts a chest from one specific tier to the next (e.g. a Copper-to-Iron upgrade, an Iron-to-Gold upgrade, and so on, up to crystal/obsidian).
• Right-click an existing chest with the matching upgrade to transform it in place - all stored items stay exactly where they are. No need to move your inventory out first.
• This lets you start with a cheap chest and progressively invest in it as you gather better materials, without ever interrupting your storage.

Use the recipe book to see which upgrade leads from each tier to the next.