Google has acquired Green Throttle Games’ Atlas controller and Arena app-maker in a move that could point to new gaming features for its long rumored set-top box. Green Throttle’s Bluetooth Atlas controller and Android Arena app essentially allow users to transform tablets or smartphones into game consoles. As part of the deal, two of the three co-founders, Matt Crowley and Karl Townsend, will be joining Google. The third co-founder, Charles Huang (“Guitar Hero”) is reportedly keeping the rights to the Green Throttle business.

“Behind the scenes, sources close to the situation report that the Green Throttle Games acquisition is a clear signal that Google looking at anchoring its set-top TV box around games. Apparently, Google’s interest in Green Throttle revolved around helping enhance its potential controller’s Bluetooth powers,” reports PandoDaily.

Google’s main competitors, including Amazon and Apple, have also been planning to release set-top boxes. Amazon reported last week that its STB could arrive by the end of March, and is using it to take on Netflix. Apple has been in talks with Time Warner for a potential April launch of a new box.

There were rumors that Google competitor Samsung was also eyeballing Green Throttle.