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.

Click the green play button, and a popup will appear. Click "Download and Install Roblox." Once the download has been completed, open the downloaded file if the computer does not do it automatically.

To download Roblox on a PC, you need to be running Windows 7 or newer. The gaming platform is also available on Mac, iOS, Android, and Xbox One.