I really like this concept, even though the content is limited and the visuals are rough, I can see a lot of potential in it. Perhaps creating effects like the Earth freezing or catching fire would allow for more control over the terrain. It might be more interesting to add an upgrade feature for the sun, such as reducing hydrogen consumption or increasing the speed of temperature rise after an upgrade. As the population reaches different milestones, the civilization on Earth could also undergo corresponding developments. In conclusion, this is a game with great potential.