Roblox
In 1989, Roblox was an interactive physics software. It was released by Knowledge Revolution. The company had been founded by David Baszucki and co-owned by his brother Greg Baszucki. The software was designed to teach students about physics in a 2D space.  In 2004, Roblox published its beta version to public. At that time, Roblox was called Dynablocks. It was known as Dynablocks until 2006 when the name was changed to Roblox .