republished fixed version of https://mods.factorio.com/mod/Natural_Evolution_Enemies
please look at original mod for description
All things Alien! Adds new Enemies and updates to Biter/Spitters Spawners. If you want a more of a challenge than what Vinalla can offer you... Part of the N.E. Mods, but can be used as Standalone. Please visit home page for more details.
Mods introducing new content into the game.
republished fixed version of https://mods.factorio.com/mod/Natural_Evolution_Enemies
please look at original mod for description