Still, I was quite excited when Activision announced that it planned to publish a Platinum Games-developed The Legend of Korra video game for PC ($14.99), PlayStation 3, PlayStation 4, Xbox 360, and Xbox One. I've heard great things about the cartoon, but I know next to nothing about its characters or plot. Full disclosure: I haven't watched a single episode of The Legend of Korra, the sequel to Avatar: The Last Airbender.