In December 2011, Roblox held its first Hack Week, an annual event where Roblox developers work on unconventional ideas for new developments to present to the company.[51][52] On December 11, 2012, the iOS version of Roblox was released[3] and on July 16, 2014, the Android version was released[4]. On October 1, 2013, Roblox launched the Developer Exchange program which allows developers to earn Exchange Robux of their games into real-world currency.

Free Robux allows players to purchase a variety of items acquired through purchases using real-world currency, from recurring perks granted to members with Premium memberships, and from other players through the production and sale of virtual content on Roblox.Prior to 2016, Roblox had a different currency, Tix (short for "ticket"), which was discontinued in April this year.[25][better sources needed] Robux earned by selling user-generated content can be exchanged for real money. -World currency through site developer exchange system.[26] There are a large number of scams related to Robux, most of which revolve around automated messages promoting malicious websites, malicious games that appear to give away free Robux, and invalid Robux codes.