If you want to ruin the suprise for yourself open the spoiler
> Dwarves can also not fight the fun stuff in the slightest (bow and arrow does nothing), and exploits such as farming the fun stuff for their mineral loot, complimentary to the 5000 points of admantium makes it extremely unbalanced if you do win this uphill battle (spoiler the fun stuff was removed previously because you couldn't win against it)
> Fun stuff actively denies terrain & ruins en-mass and eventually snowballs to be too tough for a fully equipped station to handle if burst early.
Exploits : Spoilery