Reaching the Obsidian Crate from Any Tier

The full path to Obsidian

The Obsidian crate is the top of the upgrade chain. To reach it, you must pass through Diamond crate, because the Obsidian upgrade applies to a Diamond crate.

Full step-by-step path:

1. Wooden crate + Copper upgrade → Copper crate

2. Copper crate + Tin upgrade → Tin crate

3. Tin crate + Iron upgrade → Iron crate

4. Iron crate + Golden upgrade → Golden crate

5. Golden crate + Diamond upgrade → Diamond crate

6. Diamond crate + Obsidian upgrade → Obsidian crate

Shortcuts along the way

You can compress steps 2–4 using the combined upgrades. Apply a Copper/Golden upgrade to a Copper crate, a Tin/Golden upgrade to a Tin crate, or an Iron/Golden upgrade to a Iron crate to land on Golden crate directly. From there, the Diamond upgrade and then the Obsidian upgrade finish the job.

Every conversion is a crafting_shaped recipe: put the crate and the correct upgrade into the crafting grid to get the next crate. Keep the upgrade item matched to the crate tier you are holding, or the recipe will not produce the result you want.