Don't Starve for me, soon on (E)Vita. The truth is Klei's dark realization of wilderness survival hits the Sony handheld on September 2 in North America and the day after in Europe, priced at $15 and 14 euros. It includes the Reign of Giants expansion that came to PS4 separately back in July, but at no extra cost.
Despite that disparity, Klei's made the Vita version cross-buy; if you own the game on PS4 you unlock it on Vita, and vice-versa. Don't Starve isn't cross-play, though, so saves won't cross over between PS4 and Vita.