The Backpack in Fallout 76 is extremely useful because the game has a carry-weight mechanic where a player can carry around a certain amount of weight.

Duplex Bond is a useful mod that helps you keep your energy topped up without occupying an important Warframe slot.

Are you going resource farming in Warframe? Then you will definitely want the Resourceful Retriever mod.

Like with many cosmetic items in Fallout 76, players need to obtain a Backpack Mod Plan in order to craft and acquire a Princess Backpack. Getting the plan for this item isn't an easy task, however.