What exactly makes aliens stronger?

Is it based on the in-game time, the technologies, the overall pollution or other factors I didn't mention?


There are a few factors that go into the evolution of enemies. From the Wiki, they include:

  • The passage of time very slightly increases the evolution factor.
  • The global Pollution Production increases the evolution factor.
  • Destroying the enemy spawners significantly increases the evolution factor.

You can type in one of these commands into the console to find out the current evolution factor:

/c game.player.print(game.evolution_factor)



According to the Wiki, the /evolution command will not deactivate achievments, but the other one will. The evolution number can be between 0 and 1, where 1 is fully evolved. Currently, evolution does not go down ever.

The break down of evolution is as follows:

  • One game tick - 0.0004%
  • 1,000 pollution Units - 0.0015%
  • Destroying a Spawner - 0.2%
| improve this answer | |
  • 1
    All /c commands disables the achievements. – Simon Forsberg Oct 12 '17 at 20:40

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.