It’s unique in that practically everything on ROBLOX is designed and constructed by members of the community. ROBLOX is designed for 8 to 18 year old, but it is open to people of all ages.

In the same way the game is free, so is Roblox Studio. Roblox's Developer Exchange, or DevEx program, allows developers to make money by giving 25 percent of the earnings from a game to developers.