GameSpot may get a commission from retail offers. Roblox is secretly the most popular game around. This May, the Roblox game "Grow a Garden" surpassed seven million concurrent users--but Roblox itself ...

Add Yahoo as a preferred source to see more of our stories on Google. Parents may hear about Roblox constantly in their homes, but what exactly is the gaming platform? YouTube gamer Megan Letter (AKA ...