Backpack

are items that expand a player's carrying capacity.

Use
Backpacks have 9 docks, so they are able to carry up to 9 different items. However, attaching the backpack to the player's back uses a dock, so a backpack effectivly increases carrying capacity by 8 docks. The backpack can be attached by grabbing it and reaching behind the player's back, then letting go of it. The backpack can be retrieved from the player's back by placing their hand behind their back and grabbing the it.

Obtaining
Backpacks can be obtained in a number of ways:
 * Backpacks can be found as loot in a Cave Structure.
 * Backpacks can be found in the Overworld where a Crate or Chest is present.
 * In the Town Hall, it is possible to sacrifice ten Log Wedges, ten Stone and five Copper ingots. However, this feature is only for alpha testing and will eventually go away.
 * As of 0.0.9.1 backpacks are not craftable