Roblox (stylized as ROBLOX) is a website and virtual sandbox where players make their own massively multiplayer online games for other players to play. It was started by David Bazucki and Erik Cassel. The concept of Roblox was developed in 1997, and Roblox was founded in 2005 as "Dynablocks". Roblox publishes the players' games using the programming language called Lua. Players make their games using a simpler version of this program. Roblox was removed from the TrustE program. It is listed in the Better Business Bureau with a poor rating.