The Item Shop is where you can buy items using gold pieces. When you first start the game, not all of the items are unlocked (This mainly applies to Dig Deep Mode).
To unlock items in Dig Deep, you must find the blueprints for the items you want to buy.
There is a depth limit of 200 to judge how deep you could take the Item Shop and the Block Shop. However, this could be ignored (as a glitch/game exploit) by simply closing the message telling you that you couldn't take it with you. Until you place the shop down, the message will occasionally appear again if you are still below 200 depth. The player could simply continue moving with the block in their inventory.
The 1.8 update allowed users to economize the shop, meaning players can make profit off from other players by setting their own prices in the shop.
In-game description: "Shop till you drop! Shops can be transported around the surface but cannot be taken deep underground."
Uses[]
The item shop is used to purchase a variety of different items Total Miner has to offer. There are seven tabs in the item shop: Tools, Weapons, Armor, Food, Jewelry, Keys, and Other.
The Item Shop as it appears in the inventory.
The item shop can be economized by inspecting the block and pressing the respective button.
Material and Tool Efficiency[]
Tool Efficiency
Material
Resistance
Composite
1800
100%
70%
70%
40%
Required Tool
Material = Composite
Resistance = 1800
This block CANNOT be broken with fists.
100% Must use a Wood Pickaxe or greater.
70% Must use a Wood Shovel or greater.
70% Must use a Wood Hatchet or greater.
40% Must use a Wood Sword or greater.
How to Obtain[]
The blueprint for the Item Shop can be found between depth 1844 and 2150.
It can be purchased from a Block Shop ( Utility Tab) for 3291 and sold for 2743.
General Information 
Blast Resistance: 20
Shop Information 
Utility Tab
Blueprint Information 
through 
Scripting Data 
Building 1
Crafting 65