World Cracker

The World Cracker is a pre-Hardmode, Riven-themed worm boss. It is summoned when three Gel Blisters are destroyed in a Riven world, or when a player uses Suspicious Looking Ice Cream anywhere in the Riven Hive or Underground Riven Hive.

The World Cracker has very simple attacks and mainly summons other minions to help it fight the player. It has a total of 15/17/19 segments including the head and tail, and it all counts as one unlike the Eater of Worlds. It will move opposite of the player making its movement unpredictable, but will charge at the player if they don't move. While moving around it will shoot amoeba bubbles, a laser beam or an amniotic sac that is used to summon enemies. Furthermore, the World Cracker has armor on all of its segments that reduce damage until it is destroyed.

Defeating the World Cracker and destroying its armor are the only ways of obtaining Riven Carapace, and are one of the ways of obtaining usable quantities of Encrusted Ore alongside the Eye of Cthulhu. Defeating the World Cracker for the first time also allows the Tavernkeep NPC to spawn as the Unconcious Man, and allows meteorites to land.

Behavior

It behaves like most worms except that it moves opposite of the player. If the player doesn't move, it will instead go for a direct strike. While moving it will perform any one of the attacks mentioned below.

Attacks

  • Amoeba Bubble - The World Cracker will generate and fire amoeba bubbles in bursts from any one of its segments. The timing of this attack is explained thoroughly in the 'Difficulty Changes' section below. Each bubble inflicts Riven Assimilation at a severity of 4%.
  • Frontal Beam - The World Cracker will fire a Seam Beam-like laser out of its head in an attempt to cut the player off from where they are going. This attack deals great damage and inflicts 6% Riven Assimilation every hit. A visual indicator of blue particles released from its head can be seen as it charges up for this attack.
  • Amniotic Sac - It will release a harmless amniotic sac containing a single or multiple enemies depending on what type of enemy is inside. The sac can be destroyed by the player prematurely to reduce the life of the enemies that are revealed from it. The enemy's health is directly tied to how long the sac has been released, but enemy health will never go below 5% of their max life. If the sac contains Amoeba Buggers, the amount of buggers released is also affected by this factor. Amniotic Sacs can release any of the following:
    Amoeba Bugger (as many as 4/5/6 per)
    Amoebic Slime
    Barnacleback
    Flying Exoskeleton (as many as 2 per)
    Riven Protoform
  • Mitotic Diversion - After the World Cracker has sustained enough damage, it will release two amniotic sacs with Barnaclebacks to heal and boost it.

    • Special

  • Marrowick Shell - The World Cracker has a tough marrowick shell encompassing all of its segments that reduces the damage dealt to it until it is destroyed. The armor of the head, body and tail segments each apply a different amount of defense that are all affected by the armor's health. Each armor piece has 150/200/250 health that it will add towards the World Cracker's total health. The head and body armor applies 100 defense while the tail applies 20. When body segment armor is destroyed, those segments will still have 8 defense. When any armor piece is destroyed there is a 33%/67%/100% chance for a stronger Flying Exoskeleton to appear in its wake to attack the player. At 50% of its max life, an armor piece will appear more broken, which is also reflected in the boss bar.
Difficulty Changes

- Movement speed increased by 6.06% and acceleration increased by 100%.
- The World Cracker gains 2 additional segments with 17 total.
- The World Cracker's armor health is increased by 50 (150 to 200).
- The World Cracker performs any one of its attacks every 4.69 seconds instead of every 6.25 seconds.
- The delay before the same segment can attack again is decreased from 1.53-1.67 seconds to 1.27-1.34 seconds.
- Amoeba bubble damage increased from 20 to 22.
- Amoeba bubble bounce/penetration count decreased from 2 to 0.
- Amoeba bubble duration increased from 2.5s to 3.5s.
- Amoeba bubble scale increased by 9.09%.

- Movement speed increased by 12.12% and acceleration increased by 200%.
- The World Cracker gains 2 additional segments with 19 total.
- The World Cracker's armor health is increased by 100 (200 to 250).
- The World Cracker performs any one of its attacks every 3.75 seconds instead of every 4.69 seconds.
- The delay before the same segment can attack again is decreased from 1.27-1.34 seconds to 1.18-1.22 seconds.
- Amoeba bubble damage increased from 22 to 24.
- Amoeba bubble duration increased from 3.5s to 4.5s.
- Amoeba bubble scale increased by 18.18%.
- It rains in the world while the World Cracker is present.

Notes

- The head inflicts Riven Assimilation at a severity of 8%, the body inflicts it at 6% and the tail inflicts it at 10% severity. Similarly to their Assimilation amounts, the tail deals the most damage with the head coming in second and the body segments having the least.
- The World Cracker recieves knockback from weapons that have a base damage of 100 or higher.
- The World Cracker summons special versions of enemies commonly seen in the Riven Hive. These versions have reduced stats in order to not be too much of a problem during its boss fight.

Tips

- Prepare for swarms of enemies when attempting to fight the World Cracker. You will be easily outnumbered for most of the fight, but can alleviate this problem by grouping enemies together such that piercing attacks can efficiently handle all of them at once.
- Flying Exoskeletons are very troublesome to deal with, especially in higher difficulties as their speed is increased. Focus on speed when Flying Exoskeletons are present as they inflict Riven Assimilation at a severity of 3% every hit, which can quickly add up.

Trivia


- The Destroyer is the Hardmode mechanical boss equivalent of the World Cracker alongside the Eater of Worlds.