Worms
The Worms are natural allies of Biters and Spitters and will attack the player if they get close enough. They act like static turrets and will not follow you, they will instead use their much greater range, in comparison to other enemies, to inflict damage without leaving the nest. However, their static nature does render them more vulnerable to certain attacks.
Like any other enemy, worms come in 3 sizes, their power increasing with size. Unlike Biters and Spitters, Big and Medium Worms can be created directly after start of a new game, and will not always spawn near spawners. Their appearance is not dependent on time, however their appearance frequency can be modified by distance from the initial player spawn point, with greater distance yielding bigger/more worms.
| Picture | Name | Description |
|---|---|---|
| File:SmallWorm.png | Small Worm | A weak worm. Still not easy to kill though.
|
| File:MediumWorm.png | Medium Worm | Medium worms are very dangerous to even more advanced players. They should be handled with care.
Resistances:
|
| File:BigWorm.png | Big Worm | Big worms are the most powerful enemy in Factorio. They deal a high damage and are almost immune to common gunfire of any sort.
Resistances:
|
| Picture | Name |
|---|---|
 |
Worm's animation |