Big Boulder Backpack

Big Boulder Backpack is a Roblox UGC Limited back accessory by Cashgrabba Games. Its original stock of 250 copies has sold out. Resale listings start at 140 R$, about 11% above its RAP of 126 R$. RBX Invest has tracked no sales of it in the past 30 days. It was created on Roblox on Sep 25, 2023.

RAP 126 R$
Lowest Price 140 R$
Total Copies 250
Original Copies Remaining Sold Out
Original Price Free
Market Cap 31,500 R$
Item Type UGC Limited
Category Back Accessory
Creator Cashgrabba Games

What is Big Boulder Backpack worth on Roblox?

As of September 28, 2026, Big Boulder Backpack has a Recent Average Price (RAP) of 126 Robux and the cheapest reseller listing is 140 Robux. Across the 250 owned copies, its estimated market value is 31,500 Robux.

That puts the cheapest copy 11% above RAP. Sellers are holding out for more than the item has recently traded at, which is normal for a UGC Limited with few copies on the market.

How rare is Big Boulder Backpack?

Big Boulder Backpack is a UGC Limited Back Accessory with 250 total copies. It is sold out at the original price, so copies now trade only on the resale market. It originally sold for free.

Big Boulder Backpack has 40 favorites on the Roblox catalog.

Big Boulder Backpack sales history

RBX Invest has recorded 44 sales of Big Boulder Backpack across 38 trading days, from Oct 29, 2023 to Jul 6, 2026.

Free claims from the creator are not counted, so these are sales between players.

Its highest daily average sale price was 145 Robux on Mar 4, 2024, and its lowest was 29 Robux on Dec 5, 2023.

By calendar year, its average sale price went from 53 Robux in 2023 to 140 Robux in 2026, up 164%.

Big Boulder Backpack: average sale price in the 12 most recent months with recorded sales
MonthAverage sale priceSales
Jul 2026140 R$1
Nov 2025140 R$1
Oct 2025140 R$1
Jul 2025140 R$1
Mar 2025140 R$2
Feb 2025140 R$1
Nov 2024138 R$2
Oct 2024140 R$2
Jul 2024140 R$1
May 2024130 R$2
Mar 2024122 R$2
Feb 202495 R$6

Did Big Boulder Backpack make money for release buyers?

Big Boulder Backpack sold out of its original stock on its first day of sales, Sep 27, 2023. Copies could be resold from Oct 27, 2023, once Roblox's 30-day resale lock ended.

About Big Boulder Backpack

Good work... Earned here: https://www.roblox.com/games/14582307705/Sisyphus-Simulator-Easy

Where to find Big Boulder Backpack

Big Boulder Backpack is Roblox asset ID 14885299618. It was published by Cashgrabba Games. On RBX Invest it sits in the UGC Limited Back Accessories, Limiteds under 1,000 Copies, Limiteds under 500 R$, Limiteds under 1,000 R$ collections. The RAP, reseller listings, and copy counts on this page refresh from Roblox continuously, so the figures above are the state of the market at the last update rather than a fixed snapshot.