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Peaceful Mode — Alien Behavior Clarification

Posted: Tue Nov 18, 2025 1:46 am
by Demetrius_Hudson
Hello everyone,

I have a quick question regarding Peaceful Mode in the game settings.
If I enable this mode, does it mean that aliens won’t attack unless I initiate combat first?
And if I decide to destroy one of their nests, will they then retaliate and start attacking my base as usual, or will they remain passive?

Just want to make sure I fully understand how the mechanic works before starting a new save.
Thanks in advance for the clarification!

Re: Peaceful Mode — Alien Behavior Clarification

Posted: Tue Nov 18, 2025 1:56 am
by Loewchen
They will temporarily and locally attack if attacked, see https://wiki.factorio.com/Map_generator#Enemy.