Radiant Entertainment is subsidiary of Riot Games. Their first game is Stonehearth. They were founded by twin brothers Tom and Tony Cannon, who quit their jobs after over a decade each in the software industry working for large household-name companies to use their experience to create their dream game.
They then hired Stephanie Dee and Chris Klochek to work on 3D graphics, then Albert and Doug to work on all things sound-related.
In September 2013, they moved into a new office after working out of Tom's house up until that point.
In July 2015, the team announced that they were working on free-to-play fighting game called Rising Thunder and revealed that former Capcom employee, Seth Killian, who worked on Street Fighter IV had joined the team and was helping in the games development.
In March 2016 the company announced it had been acquired by Riot Games.