Cool game!
I like the idea on this one, and it is honestly quite similar to a idle type of game I had thought of before, so I love to see that the idea actually works pretty well!
I like how progressing in this game works in an interesting way compared to other idle games, where there is a element of randomness with the rockets, but being able to share resources between your planets , and having the per second count be a sum of the planets is very cool. I like how effectively other planets wont be able to recieve as much help from others, just due to where they are positioned relatively.
Because of this, it would be cool to see how the planets move, and having certain windows be better moments to move resources to that planet, since they are so much closer and thus a higher chance to hit them.
I do think the beginning of the game is a bit grindy though, clicker games I think usually work well when the beginning is rather fast, and there are leaps in progression. I don't imagine ill get any huge leaps in progression past when I got to the first few planets.
Having other planets does open to the idea of having them have different behaviors, where maybe they have different upgrades that can help other ones, or have other different types of modifiers that make them harder to sustain. Maybe one that excels in sending out other rockets, but ultimately need a lot of resources (from a nearby planet) to get them going well. Transferring resources between planets in an optimal way would be a fun meta game to solve and figure out.
I do wish you could zoom out a bit more, since I didn't even know there was another solar system until I read some of the other reviews.
The art of this is absolutely adorable :)
Great work! I'll be playing it in the background now for the next few hours.