Humanity has expanded far across the known universe but unfortunately, resources are starting to run low. It is your job to visit two planets, talk to the humans living there and then decide which one to terminate for the greater good.
When the game says that a planet has 2 million people living on it, it is true. If you had the time you could go and talk to every single one of them. But because of the time limit, you will never be able to talk to everyone before having to make a decision.
We were planning on giving the player the option to go back and explore planets they had terminated so they could learn more about the people that were living there but we did not have enough time to implement that feature.