Fix #1: Use a non-child account. The most common reason why many people are unable to join a game and encounter the Roblox error code 103 is an issue with their account.

Roblox is a massively multiplayer online (MMO) game and development platform which allows users to create whatever they want.

Xbox One is getting Roblox, the inventive build-your-own-game online experience. It’s free to download, and it will come with 20 curated levels and modes built by fans.