We'll walk you through how to make a Roblox game by creating a Super Mario Bros.-style side-scrolling title. By following this tutorial, you'll create your own experiences with ease.

Like YouTube, Roblox started as an online stage for young creators. As the company grows toward 100 million active daily users, contributors are making big money selling games.

But that's not the case for Lithuanian 17-year-old Laimonas Mileska, or Loleris as many know him. Mileska has been creating video games through a platform called Roblox for about five years under ...