Bag of Holding

Overview

Although the item named the bag of holding originates from the Dungeons & Dragons roleplaying games, the concept of small containers magically holding large and numerous items is much older. The Norse god Thor stored Mjöllnir, his legendary hammer, in the seam of his tunic. Similarly, cartoon characters such as Bugs Bunny often pull large mallets or large firearms from pockets or nondescript sacks. 
 
Most video games, especially roleplaying games, allow players to carry inventory in size and quantity larger than any bags or containers that appear on the character model. Although some roleplaying games do limit the weight or number of items a player can carry at any one time, the allowance made do not account for realistic container volume. 
 
The bag of holding is an item in Dungeons & Dragons that allows the player to put items 40 times the bag's weight without affecting the overall weight of the bag. Because of its connection to the popular Dungeons & Dragons, items named the bag of holding have appeared in numerous video games, including several licensed Dungeons & Dragons properties.
 

Appearances in video games

 Because of its connection to the popular Dungeons & Dragons, items named the bag of holding have appeared in numerous video games, including several licensed Dungeons & Dragons properties.
 

NetHack   

The first appearance of a named bag of holding in a video game, it is one of the most coveted items in NetHack. Storing items in the bag of holding makes the items weightless, thus giving the player more allowance to carry items.
 

Baldur's Gate II  

As with other magical bags, this one appears to be a common cloth sack of about 2 feet by 4 feet size. The bag of holding opens into a nondimensional space, and its inside is larger than its outside dimensions. Regardless of what is put into this item, the bag always weighs a fixed amount

Neverwinter Nights    

Prized by pack rats far and wide, Bags of Holding originated among the mischievous kender in the far-off world of Krynn. According to popular folklore, one enterprising kender actually founded a utopian village inside his Bag of Holding. It apparently continues to thrive to this very day.

 

Heretic

When picked up, the Bag of Holding gives the player a small amount of ammo for all weapons except the Firemace, and doubles ammo holding capacity. It is similar to Doom's backpack.