Definitely thinking of Satisfactory. The monsters in that don't really attack you unless you go to them and fhe weapons you get really kinda suck. In Factorio, they are triggered to come harass your constructions because of the pollution you cause. They're also very StarCraft Zerg like with how they create nests and spam you with overwhelming forces. But you have typical shooter weapons from pistols to rocket launchers as well as tanks and turrets.

I wish Satisfsctory was essentially just 1st person Factorio but the need for combat is so lacking in it that it gets super boring once you have a decently automated factory going.