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.

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

A new app for Xbox One will allow Roblox users to share and profit from the games they've created using Roblox on PC. Roblox is a sort-of user generated MMO, aimed primarily at younger players.