You start as a single-celled organism, wriggling in primordial ooze, but by making decisions on your approach to other cells and what to eat, you slowly build up an organism, then a population, then a civilisation. A game with a similar premise is Epitaph, although that approaches the evolution of civilisations from an outsider's perspective, while this is very much an insider's view.
Systems-wise, it might be the most similar to Evolve; both use quality-gated choices. It's a good fit for the platform. While Evolve aims to be educational and brings the reader through the actual nuts and bolts of evolution and other concepts, The Little Lifeform takes a much looser view of the science, with a whimsical touch. Hats feature greatly.
A polished, simple game - could make a longish lunch break game.