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ItemSprites.png Growtopia Store
Purchase the Backpack Upgrade for 100ItemSprites.png in the Growtopia Store.
"Sewing an extra pocket onto your backpack will allow you to store 10 additional item types. How else are you going to fit all these toilets and doors?"

The Backpack Upgrade is a store item that adds 10 backpack slots to the player. A player begins with 16 backpack slots, including the slots occupied by the Fist and the Wrench. The initial price is 100 Gems, and it increases exponentially after every purchase. A player can have a maximum of 396 backpack slots.

The player earns three different achievements upon making upgrades on his or her backpack capacity. The "Embiggened" achievement is earned on the first purchase, the "Space Commander" achievement on the seventh purchase and the "Master of Space and Time" achievement on the eighteenth.

Prior to 1 March 2020, players could have a maximum of 196 backpack slots, however, along with the introduction of the Road to Glory Pack, an extra 200 backpack slots was added.

Backpack Upgrade Costs

Backpack Slots Price Cumulative Price
16 Free Free
26 100 Gems 100 Gems
36 200 Gems 300 Gems
46 500 Gems 800 Gems
56 1,000 Gems 1,800 Gems
66 1,700 Gems 3,500 Gems
76 2,600 Gems 6,100 Gems
86 3,700 Gems 9,800 Gems
96 5,000 Gems 14,800 Gems
106 6,500 Gems 21,300 Gems
116 8,200 Gems 29,500 Gems
126 10,100 Gems 39,600 Gems
136 12,200 Gems 51,800 Gems
146 14,500 Gems 66,300 Gems
156 17,000 Gems 83,300 Gems
166 19,700 Gems 103,000 Gems
176 22,600 Gems 125,600 Gems
186 25,700 Gems 151,300 Gems
196 29,000 Gems 180,300 Gems
206 32,500 Gems 212,800 Gems
216 36,200 Gems 249,000 Gems
226 40,100 Gems 289,100 Gems
236 44,200 Gems 333,300 Gems
246 48,500 Gems 381,800 Gems
256 53,000 Gems 434,800 Gems
266 57,700 Gems 492,500 Gems
276 62,600 Gems 555,100 Gems
286 67,700 Gems 622,800 Gems
296 73,000 Gems 695,800 Gems
306 78,500 Gems 774,300 Gems
316 84,200 Gems 858,500 Gems
326 90,100 Gems 948,600 Gems
336 96,200 Gems 1,044,800‬ Gems
346 102,500 Gems 1,147,300 Gems
356 109,000 Gems 1,256,300‬ Gems
366 115,700 Gems 1,372,000‬ Gems
376 122,600 Gems 1,494,600‬ Gems
386 129,700 Gems 1,624,300 Gems
396 137,000 Gems ‬1,761,300 Gems
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