This article is about the monster. For the soldier, see Cronus, The World Hydra
Cronus boss.jpg

Cronus, the World Hydra was the third monster ever made available to fight. It can be summoned on the Alchemy Summons page if you have a Serpentine Shield and are at least level 90.

You have 168 hours to complete the battle before it flees.

Basic information

Monster Details
Name Type Divine Breakpoint Time to kill 5% Health (Conquest)
Cronus, the World Hydra Epic World 0 ? 168 hours 6,250,000
Target Areas
Target Health Physical Fire Earth Wind Water Note
Cronus, the World Hydra 125.000.000 0 0 0 0 0
Monster Loot
1 Epic 2 Epics 3 Epics Gold Medal
1%+ 20.000 500.000 5.020.000
99%+ 555.000 3.040.000 >26.000.000 3,194,522
Source: Castle Age Monsters Damage/Loot Spreadsheet

Use this text string to post damage needed in monster chat:

  • 1 Epic 0.6M, 2 Epic 3.1M, 3 Epic >26.0M

Participants: up to 130 people total, with the following distribution:

  • 30 people levels 91+
  • 30 people levels 61-90
  • 30 people levels 31-60
  • 40 people levels 1-30

Additional Information

Siege weapons

While fighting Cronus, there are 5 siege weapons that can be launched to deal extra damage.
All Siege Weapons hit Cronus and are unaffected by blocks and resistances.
*Cronus has 125,000,000 HP

Name Clicks Damage Dealt

%HP Dealt*

Catapult Catapult 10 8,844,000 dmg
884,400 dmg/click
7.08 %
0.71 % per click
Ballista Ballista 20 10,184,000 dmg
509,200 dmg/click
8.15 %
0.41 % per click
Cannons Cannons 30 12,864,000 dmg
428,800 dmg/click
10.29 %
0.34 % per click
Blizzard Blizzard 40 22,204,000 dmg
555,100 dmg/click
17.76 %
0.44 % per click
Firestorm Firestorm 50 35,704,000 dmg
714,080 dmg/click
28.56 %
0.57 % per click
Totals 150 89,800,000 dmg
598,667 dmg/click
71.84 %
0.48 % per click


Rewards after slaying Cronus

Hydra dead.jpg

Uncommon Drops Rare Drops Epic Drops

Fire Elemental.jpg Fire Elemental
Soldier: Attack:8 Defense:5
Death Knight.jpg Death Knight
Soldier: Attack:9 Defense:6
Griffin.jpg Griffin
Soldier: Attack:6 Defense:6
Valerian Guard.jpg Valerian Guard
Soldier: Attack:7 Defense:9
Dwarven Battlemaster.jpg Dwarven Battlemaster
Soldier: Attack:9 Defense:7
Mercenary.jpg Mercenary
Soldier: Attack:5 Defense:3
Orc Grunt.jpg Orc Grunt
Soldier: Attack:7 Defense:5

Dragonbane.jpg Dragonbane
Weapon: Attack:5 Defense:5
Dragon Charm.jpg Dragon Charm
Magic: Attack:3 Defense:1
Serpentine Shield.jpg Serpentine Shield
Off-Hand: Attack:4 Defense:6
Hydra Rhea.jpg Hydra: Rhea
Soldier: Attack:24 Defense:18
Hydra Epimetheus.jpg Hydra: Epimetheus
Soldier: Attack:18 Defense:24
Hydra Tethys.jpg Hydra: Tethys
Soldier: Attack:21 Defense:21
Arcanist.jpg Arcanist
Soldier: Attack:23 Defense:20

Jewel of Fire.jpg Jewel of Fire
Amulet: Attack:7 Defense:6
Hellkite Minion.jpg Hellkite Minion
Soldier: Attack:32 Defense:27
Hellslayer Knight.jpg Hellslayer Knight
Soldier: Attack:29 Defense:33
Hydra Atlas.jpg Hydra: Atlas
Soldier: Attack:23 Defense:28
Hydra Prometheus.jpg Hydra: Prometheus
Soldier: Attack:35 Defense:25

Loot thresholds for 99%:

  • Epic: 1 - 555,000 (starts at 20,000), 2 - 3,040,000 (starts at 500,000), 3 - >26,000,000 (starts at 5,020,000)


Item Archives


  • Gold Medal: 3.300,000 pure damage in less than 24 hours (before 144 hrs monster timer): +3 Skill Point (one-time award)
  • Slay Cronus, The Hydra 5 Times (500,000 min dmg): +1 Skill Point, +1 Favor Point
  • Slay Cronus, The Hydra 25 Times (500,000 min dmg): +25 Favor Point


  • Introduced: October 30, 2009
  • Previously, this monster also required one Red Dragon Egg to summon.
  • Please help the Castle Age community by entering your loot data in THIS spreadsheet.

v · e · d
Epic Boss
Gildamesh, the Orc King - Colossus of Terra - Sylvanas, the Sorceress Queen - Mephistopheles
Keira, the Dread Knight - Lotus Ravenmoore - Skaar Deathrune - Azriel, the Angel of Wrath
Alpha Mephistopheles - Lion's Rebellion - Corvintheus - Jahanna, Priestess of Aurora
Aurora - Ambrosia - Malekus - Azeron - Fenix, Risen From Ashes - Urmek, Protector of Gaia
Vorak, Devourer of Skies - Baal, Stealer of Souls - Aspect of Death - Cassandra
Epic Team
Dragons - Sea Serpents
Epic World
Cronus, the World Hydra - Battle of the Dark Legion - Genesis, the Earth Elemental
Ragnarok, the Ice Elemental - Bahamut, the Volcanic Dragon - Alpha Bahamut, the Volcanic Dragon
War of the Red Plains - Gehenna, the Fire Elemental - Valhalla, the Air Elemental
Kromash, the Storm Giant - Shardros, the Mountain Giant - Glacius, the Frost Giant
Magmos, the Lava Giant - Typhonus, the Chimera - Kraken - Alpha Kraken
Vermilion, the Tyrant - Kessaran, the Undying - Poseidon, Atlantean King
Abomination, Ancient Slime - Lord of Darkness - Svarog, the Magmapede
Lothorewyn, the Corrupted - Alperon, the Corrupted - Bonegnasher, Death Rat Horde
Verminarch, Death Rat Horde - Ogrimus, Death Rat Horde - Rodenom, Death Rat Horde
Leviathan of the Deep - Leviathan of the Grove - Leviathan of the Void
Leviathan of Wrath - Thanatos, the Reborn - Cronus Astaroth
Agamemnon, the Overseer - Alexandra, the Unbreakable
Vargulis, First Brood - Samael, Wraith Legionnaire - Chromus
Phantom of Fire - Phantom of Lightning - Phantom of Shadow
Draculia, The Blood Dominator
Limited Monsters
Cronus of Ice - Cronus of Earth - Cronus of Fire
Succubus of Desire - Succubus of Greed - Succubus of Agony - Succubus of Nightmares
Special Bosses
Kull, the Orc Captain - Karn, the Minotaur
Guild Bosses
Vincent - Alpha Vincent - Army of the Apocalypse - Giant Arachnid
Guild Conquest Land Monsters
Orc Band - Orc Horde - Orc Host - Ouroboros
Heart of Darkness Co-Op Bosses
Thanatos of Fire & Ice
Siege Weapons - Damage and Healing - Monster Medals
Community content is available under CC-BY-SA unless otherwise noted.