The creator said its current version is beta, but at least claimed that it will be free to play in the full version, and Car Crushers 2 and Apocalypse Rising 2 were also formerly paid in beta, but now they're free to play. Prior to 2016, the game had a secondary currency called Tix (short for 'tickets') that was discontinued in April of that year, meaning that players have to pay with real money to obtain Robux without tradings. In addition, these items can be however created for free. Robux, as of nowadays, is the only currency used on Roblox that allows players to buy and sell virtual items which can be used to decorate their avatar on Roblox. A total of 20 million games are produced using Roblox Studio each year.
Games are coded under an object-oriented programming system with Lua, an open-source programming language to manipulate the environment of the game.
Roblox Studio is the proprietary game engine for Roblox.
