I love this theme. In fact, there’s a lot of amazing games that bear this concept in mind. The first game that everybody remind is Thomas was alone. This is a game with minimal graphics (not the gameplay) but  also there’re others games that aren’t so popular though they have in common the same concept: geometric shapes, simple scenarios and go on, i.e. Alphaland, LIM or One

But I guess that working only “minimalism in graphics” could be a misconception or bad interpretation. And that’s the question! What about a minimal gameplay or plot? minimal, not simple… that’s the real challenge! Probably, the last game of Pippin Barr, Mumble Indie Bungle is the answer!