What is Roblox

Roblox is a free online multiplayer game, where you play in user-created worlds with blocks.
Unlike most other games there aren't any pre-defined goals.
You are given a variety of objects, a scripting language, other people and left to do whatever you want.
With your free account, you get a character and a place.
You can customize your place and character however you want, and visit anyone else's place as well.