Like YouTube, Roblox started two decades ago as an online stage for young creators. Video-game lovers could use the service’s tools to develop inexpensive, low-resolution entertainment.

Learn how to set up a Roblox account, where to find stuff in the app, what types of games you can play, and what exactly Robux are.

As gaming hits draw tens of millions of simultaneous players, Roblox engineers make sure the internet’s youth never deal with buffering.