In just under two months, a Roblox user-created game called Grow a Garden has become a massive hit.

How to get the Enchanted Egg in Grow a Garden's Fairy Event, and the odds of hatching every pet, including the Cockatrice, ...

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.

The result is a game that’s as edgy as it is entertaining, with rules and gameplay that make you wonder how it slipped through.