Roblox - Advanced Shop System - [free] Today

: Use a server script to listen for the PurchaseItemEvent . This script checks if player.leaderstats.Currency.Value >= itemPrice , deducts the cost, and clones the item into the player's Backpack .

: Add a script to ServerScriptService to initialize a "leaderstats" folder with your chosen currency for each player. Roblox - Advanced Shop System - [FREE]

: All purchases are handled through RemoteEvents and RemoteFunctions on the server to prevent exploiters from giving themselves free items. : Use a server script to listen for the PurchaseItemEvent