Within A Deep Forest is a platforming game by Nifflas, the man behind Knytt and Knytt Stories, with a unique protagonist and an extremely simple concept. You are a ball. You can, by completing certain objectives which are not given to you, acquire new materials from which to form yourself. The overarching story is that you must send yourself back in time to stop a mad scientist from detonating a bomb which will exterminate all life on the planet.