Telltale just announced the release dates for the third episode of their episodic cinematic adventure based on Game of Thrones. It will be released tomorrow on Windows, Mac, and on PS4 and PS3 in North America. Xbox One, Xbox 360, PS4, and PS3 in Europe will get it on Wednesday. Then on Thursday, it will be released for iOS and Android.
They also released a launch trailer for the episode, which has been embedded above.