Make deep drill invincible. Your enemies won't attack the deep drills. Fire-resistant too.
Can't protect it from the infestations due to excessive depth.
Recommend you use this mod too: [url=https://steamcommunity.com/sharedfiles/filedetails/?id=3576934315]https://steamcommunity.com/sharedfiles/filedetails/?id=3576934315[/url]
