Organisms grow and evolve over time, regardless of where they're located. In "Ef the game," you are a small circular bacteria and your job is to eat the other small white things so that you can grow to be a big bacteria. You get around in space by using your mouse to aim the body of 'Ef'. You can speed up by pushing the left mouse button. You can discover new worlds. There is a score and it will show you how many of the worlds have been discovered. Keep searching around the Universe until you find all that you seek.