I agree, clicking on the moving planets is a bit hard, which is why I added the arrow keys. I'm not sure how to make them more clickable since they are moving. For the population, that would depend on the planet's orbit. Was it too close or far away from the star? It might've been at a spot where life grows and dies at the same rate, so it doesn't change much. Or it was just taking a while for things to happen since growth is somewhat based on randomness. Also, I tested it, and I see the crash you mean. No idea what causes that, and I never had that issue in the Unity editor, but I'll keep it in mind. Sorry it messed up your playthrough! And thank you for the feedback :)