Anzu - which counts among its backers WPP, Sony Innovation Fund, NBCUniversal, HTC and Bitkraft - has been on a mission since 2017 to make advertising in games better. Recently, it has been making waves as studios cross a once-dreaded line to create ads in 3D games. As the only licensed in-game ad provider for Xbox, it has made headway on a product that will ease marketer concerns about the viability of in-game advertising.