There are 12 Customers in the game. Customers are unlocked after purchasing the second Hero. The number of Customers available is equal to the number of your Heroes unlocked + 2. Customers gain Xp from buying your Items and you buying their Items. You can adjust the price of the sale by moving the slider. (See below) Selling at a higher pirce will result in lower Grade. Selling at a lower price will result in more Xp. File:Screenshot 20170903-174900.png