If you play Roblox on your Android or iOS smartphones, you must have an existing Roblox account. In this case, you need not create a new account to download and install Roblox on your Windows PC.

Quick tip: To play Roblox on a PC, your computer will need to be running at least Windows 7 or newer. It's also available for Mac, iOS , Android , and Xbox One . How to download Roblox on a Windows PC ...