The Inventory is where the character's items are stored and also where to change equipment. It is accessed either by pressing the hotkey, or by activating the menu bar (press 'ESC') and then clicking on the backpack icon:
Inventory Tabs
Each of the 4 inventory tabs holds different kinds of items.
- Equipment: Equippable items.
- Items: Crafting formulas, leftovers, and candles.
- Ingredients: Crafting ingredients.
- Pets: Pets and pet food. Here is also where you equip pet food or a pet in the pet slot, instead of in the equipment tab.
Equipping Items
Rightclick on a valid piece of equipment (the character meets the class and power level requirements) and it will automatically be equipped in the appropriate equipment slot (if there is already something previously equipped it will be swapped out).
You can also leftclick and drag the item to drop it into the slot, although doing this requires the item to be dropped in the correct slot, otherwise nothing will happen.