Roblox

Roblox (, ) is an online game platform and game creation system developed by Roblox Corporation that allows users to program and play games created by themselves or other users. It was created by David Baszucki and Erik Cassel in 2004, and released to the public in 2006. As of February 2025, the platform has reported an average of 85.3 million daily active users. According to the company, their monthly player base includes half of all American children under the age of 16.

The platform hosts millions of user-created games (officially referred to as "experiences" since 2021), all created using a dialect of the programming language Lua and the platform's game engine, Roblox Studio. While Roblox is free-to-play, it features in-game purchases done through its virtual currency known as "Robux", and game developers on the platform are able to create items that cost Robux. Furthermore, the platform hosts a large virtual economy centered around those items and Robux. Using the platform's "Developer Exchange" program, creators on the platform are able to exchange their earned Robux for real-world currency. The platform has also been used to host virtual concerts and events, as well as advergames.