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Castle Age Wiki
Monster chromus large

Chromus can be summoned on the Alchemy Summons page if you have 50 energy on hand and are at least level 450.

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

Basic information[]

Monster Details
Name Type Divine Breakpoint Time to kill 5% Health (Conquest)
Chromus World 0 ? 168 hours 150,000,000

Target Areas
Target Health Physical Fire Earth Wind Water Note
Head 1,000,000,000 400 0 0 0 0
Power core 2,000,000,000 400 0 0 0 0

Monster Loot
1 Epic 2 Epics 3 Epics Legendary Gold Medal
1%+ 32,400,000 53,440,000 107,820,000 192,000,000
99%+ 50,500,000 85,830,000 139,700,000 272,860,000 75,000,000*
Source: Castle Age Monsters Damage/Loot Spreadsheet

Chromus has 3,000,000,000 health.

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

  • 1 Epic 50.5M, 2 Epic 85.9M, 3 Epic 139.7M, 1 Legendary 272.9M
  • 5% 150M, 10% 300M, 15% 450M

Participants: up to 145 people total, with the following distribution:

  • 100 people levels 500+
  • 40 people levels 150-499
  • 20 people levels 100-149

This battle uses the Monster Stance and Target Area systems.

Additional Information[]

Target Areas[]

Chromus has two different areas that can be attacked, each with its own health and resistance:

  • Head (1,000,000,000 health): Dispatch to defeat Chromus. Dispatching early does not enable any Weakness on the Power Core.
  • Power Core (2,000,000,000 health): Dispatch to defeat Chromus.


Chromus has Piercing Resistance.

  • Power Core : +400 Piercing Resistance (Max block 40%)
  • Head: +400 Piercing Resistance (Max block 40%)

Monster Combat System[]

See the Monster Stance page for more info.

Chromus' stance is 50.

Level Point Range Damage Boost Critical Boost
0 0-250 0% 0%
1 0-750 10% 2%
2 0-1,500 20% 4%
3 0-2,500 30% 6%
MAX 0-9,999,999 50% 7%

Decay starts at -5.0 per second, and decreases with successful attacks with a balanced general.

Ultimate Mode:

Get both the damage and critical bars to max level to unlock ultimate attack mode. When ultimate attack mode is activated, players have a limited time to take advantage of vastly increased damage and critical chance before both bars reset to their starting values.

Players have 2 minutes to attack with +100% damage, and +10% critical chance.

How it works:

Chromus uses the Stance combat system where players have the opportunity to gain bonuses by attacking all at once. When attacking, if a player's equipped Alliance Stance exceeds the monster's stance difficulty rating, the monster battle will receive points equal to the amount of stamina used.

Your equipped hero type determines the benefit type and the hero stance power is determined by the sum of the hero level and same type heroes in alliance with him.

Defensive alliances increase the critical stance bar which gives a flat percentage increase to the chance to get a critical hit. Offensive alliances increase the damage bar and the damage done by every attack. Balanced alliances reduce the rate at which the critical and damage bars decay. Damage added through these bars does not count towards the minimum threshold to receive rewards. A player's total damage towards loot can be observed as their Contribution total.

The Critical stance bar and Damage bar give static percentages once certain amounts are reached, as noted in the table below. When one level is filled, the next level starts from zero, and the corresponding bonus is activated for thirty minutes or until the current level goes below zero points. When the bonus expires, the bar starts from level zero. If the player's equipped stance is greater than the difficulty rating, the amount of stamina used is added to the corresponding bar.

Siege Weapons[]

While fighting Chromus, there are 5 siege weapons that can be launched to deal extra damage.
All Siege Weapons hit Chromus and are unaffected by blocks and resistances.
*Chromus has 3,000,000,000 HP

Name Clicks Damage Dealt

%HP Dealt*

Valerian Soldiers Valerian Soldiers 10 64,000,000 dmg
6,400,000 dmg/click
2.13 %
0.21 % per click
Elven Rangers Elven Rangers 20 80,000,000 dmg
4,000,000 dmg/click
2.67 %
0.13 % per click
Dwarven Militia Dwarven Militia 30 96,000,000 dmg
3,200,000 dmg/click
3.2 %
0.11 % per click
Archer Allies Archer Allies 40 112,000,000 dmg
2,800,000 dmg/click
3.73 %
0.09 % per click
Gray Wizards Gray Wizards 50 128,000,000 dmg
2,560,000 dmg/click
4.27 %
0.09 % per click
Totals 150 480,000,000 dmg
3,200,000 dmg/click
16 %
0.11 % per click


Click to display

Chromus Slain[]

Standby Mode Active.

Increment year counter. Increment year counter. Increment year counter. Increment year counter....
Routine maintenance initiated. Standby Mode disengaged. Diverting 0.2% power to system scanners. Scanning..... Scanning...No internal malfunctions detected. Preforming external scan.... scanning.... Underground vault remains intact... Seal placed on storage unit by God/Emperor Samael remains intact. North-East wall segment projected to suffer minor cracking in 458.7 years to tectonic activity.

Standby Mode reengaged.

Increment year counter. Increment year counter. Increment year counter. Increment year counter....
Routine maintenance Initiated. Standby Mode disengaged. North-East wall segment cracked after only 458.3 years. Recalibrating tectonic prediction program. Activation signal from Samael still not received. Calculating final decimal place of PI with spare processing power....
Increment year counter. Increment year counter. Increment year counter. Increment year coun....


Primary Directive Reactivated: Destroy all that oppose Samael! Beginning primary startup sequence. Error! Minor system damage due to centuries of dormancy. Repair subroutines initiated. ETA to full functionality: 1873 hours. …. Repair subroutines complete. Reactor online, sensors online, weapon systems online, all systems nominal.

Scanning for Samael.... error Samael not found.... Probability of Samael's defeat: 0.001%. Primary directive still valid: DESTORY ALL! Encountering opposition. Beginning Threat Analysis …..

Threat Analysis Complete. Threat level: Insignificant. Threats are adventurers: Warriors, Rogues with Mage/Cleric support. Exterior armor should be sufficient to repel their attacks. Damage Report! Attackers have accessed to unforseen levels of armor piercing attacks. Recalibrating Threat level! Critical damage sustained to reactor core, shields failing... Main systems taking dam@%~ge.... You tried to attack but tripped while running ..... Un_ble to fulfill P~im_ry diretciv4.... sys failure.

Rewards while fighting Chromus[]

Defense Essence 108 Defense Essence

Rewards after slaying Chromus[]

Monster chromus large dead

Rare Drops Epic Drops Legendary Drops

Mithril Guardian Mithril Guardian Armor: Attack:0 Defense:200
Item Bonus: 2 slots, +70 Physical Resistance, -25 Fire Resistance
Mithril Helm Mithril Helm Helmet: Attack:0 Defense:160
Item Bonus: 2 slots, +10 Physical Resistance, -20 Fire Resistance
Mithril Band Mithril Band Amulet: Attack:0 Defense:150
Item Bonus: -15 Fire Resistance
Metal Storm Metal Storm Magic: Attack:0 Defense:125
Item Bonus: +10 Physical Resistance, -15 Fire Resistance

Chromus epic blue core Blue Chromus Core

Chromus epic red core Red Chromus Core

Chromus epic green core Green Chromus Core

Ingredient blue eye Blue Chromus Eye

Ingredient red eye Red Chromus Eye

Loot thresholds for 99%:

  • Rare: 1 - 21,690,000 (starts at 9,087,000), 2 - 64,890,000 (starts at 18,590,000), 3 - 108,420,000 (starts at 70,130,000), 4 - Unknown (starts at 108,420,000)
  • Epic: 1 - 50,500,000 (starts at 32,400,000), 2 - 85,830,000 (starts at 53,440,000), 3 - 139,700,000 (starts at 107,820,000)
  • Legendary: 1 - 272,860,000 (starts at 192,000,000)


Divine Sky Breaker Arcane Warbanner
Sky Breaker Sky Breaker (Weapon: 0 Attack, 225 Defense, 2 slots, +35 Physical Pierce, -15 Fire Resistance). Needs: Chromus Warbanner Chromus Warbanner (Warbanner: 35 Attack, 50 Defense, +30 Physical Piercing; +3% Defense to Aggressive Generals; 1 slot). Needs:
Mithril Sky Breaker Mithril Sky Breaker (Weapon: 0 Attack, 300 Defense, 2 slots, +75 Physical Pierce, -25 Fire Resistance). Needs: Mystic Warbanner Mystic Warbanner (Warbanner: 35 Attack, 75 Defense, +40 Physical Piercing; +4% Defense to Aggressive Generals; +4% Mage Enrage; 1 slot). Needs:
Divine Sky Breaker Divine Sky Breaker (Weapon: 0 Attack, 425 Defense, 3 slots, +85 Physical Pierce, -35 Fire Resistance, +5% Divine Favor). Needs:

Must own, not consumed:

Arcane Warbanner Arcane Warbanner (Warbanner: 35 Attack, 75 Defense, +40 Physical Piercing; +4% Defense and Attack to Aggressive Generals; +6% Mage Enrage; 1 slot). Needs:

Must own, not consumed:

Item Archives[]


  • Gold Medal: 75,000,000* pure damage in less than 24 hours (before 144 hours monster timer): +3 Skill Points (one-time award)
    • Damage needed is NOT verified.
  • Slay Chromus 5 times (1,000,000 min dmg + def): +5 Favor Points.


  • Introduced: Apr. 13, 2016.
  • Please help the Castle Age community by entering your loot data in THIS spreadsheet.

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