Expanders

Expanders are very rare consumables that increase the capacity of storages and while they're hard to get, the upgrades they give are permanent.

There are a few types of expanders:

Inventory expander

Increases the maximum size of your inventory

Bank expander

Increases the maximum size of your bank

Material bank expander

Increases the maximum size of your material bank

Using expanders

You can use expanders by simply right clicking them in the inventory.

Using expander

Consumables
Instant potionsUtility potionsCombat potionsFoodElemental essencesEnemy soulsExpanders