Burrowing worms! Fend off a digging menace that wants to devour your factory.
Mods introducing new content into the game.
Changes to enemies or entirely new enemies to deal with.
https://imgur.com/a/9NKb5kw
while testing new parameter this error message is appear, always at the same time after loading save, this probably mean what 1 exact worm made causes the problem. For me this message tell's nothing.
Fixed, get a new version.