Giving evolution a little bit more visual flair, Thrive is a scientific open source sim about surviving and growing as a tiny creature. A new release has arrived bringing with it some pretty big changes to how it looks, along with even more customization of your run.

What is it? You take control of an organism on an alien planet, starting off in the microbe stage. The game world and other creatures all evolve and change as you do. It's all quite science-focused too, although not too overloading. It's seriously cool.