Tarsier Studios.

Little Nightmares II is a suspense-adventure game in which you play as Mono, a young boy trapped in a world that has been distorted by a mysterious transmission from a distant signal tower. With Six, the girl in a yellow raincoat, Mono sets out to discover the dark secrets of The Signal Tower and save Six from her terrible fate; but their journey will not be easy. Outsmart the sadistic teacher, survive the bloodthirsty hunter and flee from many more...