A 16-year-old’s Roblox game, Grow a Garden, has shattered records for the most concurrent players in history.

Roblox has broken the record for the most concurrent users on a platform. And it’s all thanks to two huge games.

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

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.