When I look at the Enemy Spawn Probability graph for the glowing jellyfish (Nix enemies), it says that the jellyfish spawner has a 100% chance to spawn glowing jellyfish when the evolution is less than (or equal to as far as I can tell) 0.6.

However, at 0.6, there's a vertical drop and the graph claims that past 60% evolution, there's a 0% chance for the jellyfish to spawn. Yet, I have seen instances of the jelyfish spawning past 0.6. (currently my save has an evolution factor of 0.8383 on Nix and I have nests just outside my laser turret range and I can see them spawning).

I'm guessing it's an issue with the graph and you wanted the spawners to keep spawning. I had only made a light defense on Nix cause I thought that the enemies would stop spawning after a certain point, so I was somewhat surprised to see that they just kept coming.

(Otherwise enjoying metal and stars! Thanks for making the mod!)