To make clothes in Roblox, you don't have to pay real money directly to the game. However, you need to have a Roblox Premium subscription, which requires a monthly or annual fee. This subscription allows you to access the Roblox Marketplace, where you can purchase the necessary ingredients to make custom clothes or buy clothes already made by other players. After purchasing the necessary materials, you can use the Roblox Studio program to design and create your clothes according to your taste and preference.