|AI Type||Astrum Deus AI|
|Max Life||105,000 total / 168,000 total /|
226,800 total / 344,400 total
|Debuff duration||2 seconds / 4 seconds (Mines)|
|Debuff tooltip||Your flesh is burning off|
|Immune to||All debuffs|
- Item (Quantity)Rate
Astrum Deus are a Hardmode boss that must be defeated in order to allow Astral Ore to be mined. Instead of being a single large worm, such as The Destroyer, the boss is comprised of 10 smaller worms and a longer main worm that is invincible until the others are defeated.
Spawn[edit | edit source]
Astrum Deus can be summoned by using the Starcore at Night. Despite being connected to the Astral Infection biome, they may be summoned anywhere. If Astrum Deus are not defeated by Dawn (4:30am), the boss will despawn.
Segments[edit | edit source]
Main Worm[edit | edit source]
Small Worms[edit | edit source]
Behavior[edit | edit source]
Astrum Deus behave like regular worm enemies, moving through blocks and attempting to ram the player. While they are normally affected by gravity, the worms will gain the ability to fly if the player strays too far from them. They fire lasers from their segments and occasionally summon Astrum Deus Probes.
One of the worms has multiple special Astrum Deus Probes spinning around its head, which shoot astral orbs that slow down over time and eventually stay in place. These orbs will soon form a minefield which the player must carefully weave through or avoid entirely. If the worm which the probes are orbiting is killed, they will quickly begin to circle a different worm.
One of the worms is spectral and has the ability to fly, no matter its distance from the player. This worm can only be hurt when the player has killed all of the other Astrum Deus. It is longer than the other worms and has much more HP, but cannot carry probes around its head.
In Revengeance Mode[edit | edit source]
- The probes surrounding one of the worms shoot more mines.
- The worms are faster.
In Death Mode[edit | edit source]
- Worms and lasers are faster.
- Fires more astral orbs.
Summons[edit | edit source]
Tips[edit | edit source]
- A platform arena can help increase mobility and air time.
- Try and keep moving, and don't stay in one spot. Avoid circling the boss as the astral orbs and probes will make it too difficult to do so.
- Do not attempt to contain the mines in one area, unless you are confident in your dodging capabilities, as having too many mines in one area makes it extremely difficult to break out and leaves the player as easy prey for the small worms.
- In most instances there will be a large amount of mines lingering in the air once the main worm becomes vulnerable. Try not to fight the main worm in the mine infested areas as their high contact damage and the debilitating debuff that they apply can cripple, if not kill the player.
- Having a large arena can make this much less of an issue.
- Astrum Deus’ many minions and abundance of projectiles can, especially on less powerful computers, cause large framerate drops. This can be used to your advantage by turning frame skip off, giving you more time to process and dodge attacks.
- Keep in mind that Astrum Deus’ have very high defenses which greatly reduce the amount of damage dealt by weapons. With this, weapons such as the Nimbus Rod will deal very little damage . Therefore, it is recommended to use a high damage piercing weapon.
- Using reforged Vampire Knives can deal good damage against the secondary worms, and decent damage against the main one if they hit its head.
- The Terra Ray conbined with magic boosting equipment can quickly decimate Astrum Deus.
- Using a Gravitation Potion can help with dodging the worms.
- It is recommended that you use acceleration increasing accessories such as the Aero Stone or the Deific Amulet to help dodge incoming and lingering projectiles.
Aftermath[edit | edit source]
- Once defeated, Astral Ore will become mineable.
- The Wizard will begin selling the Shadowbeam Staff, Inferno Fork and Spectre Staff, as well as Starcores.
- The Drunk Princess will begin selling the Star Beam Rye at night.
- The Mantis will now drop the Astral Scythe.
- The Atlas will now drop the Titan Arm.
- The Nova will begin to drop the Stellar Cannon.
- Astralachneas will begin to drop the Astralachnea Staff.
- Hives begin to drop the Hive Pod.
Trivia[edit | edit source]
- Astrum Deus' theme is Pest of the Cosmos, which was composed by the artist DM DOKURO.
- When the Calamity Music addon mod is disabled and the Calamity base mod enabled, Boss 3 will play instead.
- "Astrum Deus" means "The Star God" in Latin.
Lore[edit | edit source]
Since ancient times, humans have looked to the skies with admiration and wonder; countless religions place their gods and their heavens amongst the skies. The sun was their god of warmth and life, banishing the darkness and offering hope. The moon was an idol amidst the night - a symbol of light, yet a beguiling one that beckoned with madness.
The stars, they once said, were no single gods. The wondrous stream of stars that stretched across the sky on cloudless nights - the source of those lights was a divine serpent of incomprehensible proportions. Its very nature was unimaginable, to the point that its presence in their reality could only be glimpsed through the countless stars its body birthed. As the collective faith of humanity gathered, it gave rise to the manifestation of their belief: a true god of the stars, soaring through the cosmos.
But even gods could be laid low. Conquering the land countless years after the god of the star's legend was born, the Jungle Tyrant looked to the skies and saw yet another realm to dominate - beginning by striking down Astrum Deus with his own Devourer of Gods. Empowered by those it had already consumed, the Devourer tore open the larger divine serpent’s gut and burrowed in, feasting on its body and killing it from the inside out before crushing its husk to pieces between its coils and scattering the remains to the cold void of space.
In ancient times, it was said that the god of the stars would descend upon the planet in its last days. Its body would infuse the earth with astral power and transform lesser lifeforms into its guardians. The power lingering in its corpse attracted worms to itself, empowering them so that they may grow - and Astrum Deus may one day return to the cosmos. Even when torn asunder, the god's corpse held power; just as the legend that gave rise to it claimed, those fragments of its body would one day fall to the planet and choose a successor to the god of the stars.