Upon entering the Arena, the Queen will emerge out of the ground after a quick check for challengers. She only shows up if you aren't riding on a creature while you fall into the water at the bottom of the waterfall.
Appearance
The Queen has a light blue color scheme with white appendages and grey claws. She also has the standard "alpha" glow around her.
The Iceworm Queen is powerful but with a few people, it is easy to defeat. She spawns at a minimum of level 10 (if only 1 person is present) and will gain 10 levels per challenger.
Strategy
Have one person go up to it with a shield, while others can shoot at it. Or on a cluster get a good Velonasaur and shoot at it. Alternatively, use Cryopods to bring 2 mate boosted Baryonyx for an easy win.
Weaponry
Use Assault Rifles or other high-tier fabricated weapons to deal massive damage in the quickest time it is a DPS race.
Dangers
The Queen has strong attacks and it can easily kill survivors who improperly get too close. The Queen is nearly guaranteed to get the first strike or at least strike once after emerging due to her massive attack hitbox.
Weakness
The Queen remains stationary as long as someone is within her attack range. Someone up close using a shield is safe from her attacks and can keep her attention while other players shoot away.
it's suggested based on the area you fight her in that she is strong enough to take down both a Giganotosaurus as a giga is paralyzed next to several eggs suggesting it'll be eaten alive by the baby's once they hatch and a Megapithecus as one can be found dead lying near the entrance to the egg chamber.
She is one of the 3 mini boss battles in Ragnarok, with the others being the Lava Elemental in the Forest dungeon and the Spirit Direbear and Spirit Direwolf in the Lifes Labyrinth dungeon.
The Iceworm Queen is the largest creature on Ragnarok.
The Iceworm Queen is one of the largest creatures in game even surpassing the Titanosaur and the smaller titans (tested on Ragnarok by spawning the Iceworm Queen at the top of the castle and spawning in a Forest Titan) if you take into consideration the rest of its body that's submerged in the ground and how the body curves it would at least be 70 meters long possibly reaching up to 80 meters or larger.
Unfortunately it looks like killing it doesn't counts towards the Chibi progress although its counted as an Alpha Deathworm.
if you blaze through the cave and avoid killing her and reach the end then repeat, more iceworm males and queens will will spawn in the same place but the rewards will increase.
Yes
Alpha Deathworm, 
Iceworm Male
Alpha Deathworm Trophy
AnglerGel
Black Pearl
Deathworm Horn
Hide
Keratin
Leech Blood
Manticore Helmet Skin
Organic Polymer
Raw Meat
Raw Prime Meat
Health
Stamina
Oxygen
Food
Weight
Melee Damage
Movement Speed
Torpidity
Giganotosaurus as a giga is paralyzed next to several eggs suggesting it'll be eaten alive by the baby's once they hatch and a 
Megapithecus as one can be found dead lying near the entrance to the egg chamber.
Lava Elemental in the Forest dungeon and the 
Spirit Direbear and 
Spirit Direwolf in the Lifes Labyrinth dungeon.
Titanosaur and the smaller titans (tested on Ragnarok by spawning the Iceworm Queen at the top of the castle and spawning in a 
Forest Titan) if you take into consideration the rest of its body that's submerged in the ground and how the body curves it would at least be 70 meters long possibly reaching up to 80 meters or larger.
King Titan, 
Rockwell and 
Moeder, Master of the Ocean.
