A Roblox gift card is a type of prepaid card that can be used to purchase Robux, the virtual currency used in the Roblox game. Robux can be used to purchase in-game items, such as clothing, accessories, and special abilities for characters. Roblox gift cards can be purchased at a variety of retailers, including game stores, supermarkets, and online marketplaces. The cards usually come in the form of a physical card with a code on it, which can be redeemed on the Roblox website. Robux can also be purchased directly using a credit or debit card, but some players prefer to use gift cards as a way to budget their spending.