Roblox is a game that's built to be multiplayer and allow participants to create virtual worlds and characters -- something that can be used in teaching real-world students.

Online game platform Roblox has launched a free digital civility curriculum to teach children how to behave and stay safe online.

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?