Two years ago, I heard about AER - Memories of Old, an independent project of the Swedish study Forgotten Key, that drew attention for it's graphic aspect and some of it's ideas in terms of exploration. The reason? The protagonist has the capacity to transform itself into a bird.
It's a very minimalist game, and not only in art - surfaces without textures, under polygon - but also in the proposal. There is history and background about gods or ancestral ruins that is explained in documents and murals, but there are hardly a few characters to talk about and basically their function is to give clues to our next objective, not to develop a big argument.