Before designing a shirt, you need to have a Roblox account and some Robux, the in-game currency used by players to buy accessories, clothes, and skins from the avatar shop.

What is the Roblox Marketplace The Roblox Marketplace, formerly called catalog, is where any user-facing item, accessory, or customization option is sold.

With Roblox available on many formats, here's everything you need to know about the game, including tips on how to play safely online.