Thanks for the feedback! I'm glad to hear you enjoyed it, and I can 100% agree with you about how repetitive and flat the game loop can get, with no really important choices like you mentioned.
The fire was meant to be a visual effect, but I wasn't really thinking how it would seem from the players perspective, as if the planet was being damaged by the fire. If the fire did damage, I think putting it out and also maybe replenishing the planets health with another mechanic would be a great improvement for the gameplay, as well as much easier to understand.