It's difficult to pinpoint a specific individual or group who popularized the use of XD in Roblox, as internet slang and emoticons often spread organically within online communities.

Roblox went public last week and is worth $45 billion -- why is Roblox so interesting to people with money, and what does that tell us about games as a whole?

Wondering what Roblox is now that your kid keeps talking about it? Here's what you should know, including how it works and if it has scams.