The idea is pretty cool and I also love the graphics :)
It just took me a while to understand the game. In the tutorial text the color of the reactors that fix stability is named blue but ingame it was green, that was a bit confusing :D
From gamplay side I felt never the need to update and when I did there was very low impact to my gameplay.
Also I didn't get the point of the yellow reactors, when should I use them.
Sill very cool game idea, you should keep working on it :)