Raising a dragon isn’t always easy. This guide will show you all you could ever want to know about Krumblor
 
 

Introduction

This guide contains information combined from the wiki, reddit and some of my own experience.
 
 
Krumblor the cookie dragon is obtained by sacrificing cookies and buildings. The player will unlock selectable auras which provide various benefits in the game. An aura can be selected by clicking on the dragon. Switching auras costs one of the highest tier building owned.
 
 
To unlock Krumblor, the player must purchase the Heavenly Upgrade ‘How to bake your dragon’, which in turn unlocks the upgrade ‘A crumbly egg’ in all subsequent playthroughs.
 
 
 

Upgrades

Icon	Name	Unlock Condition	Base price	Description
	How to bake your dragon       (heavenly upgrade)	“Legacy” purchased	9	Allows you to purchase a crumbly egg once you have earned 1 million cookies.       “A tome full of helpful tips such as ‘oh god, stay away from it’, ‘why did we buy this thing, it’s not even house-broken’ and ‘groom twice a week in the direction of the scales’.”
	Pet the dragon       (heavenly upgrade)	“How to bake your dragon” and “Residual luck” purchased	100 billion	Unlocks the ability to pet your dragon by clicking on it once hatched.       “Dragons do not purr. If your dragon starts purring, vacate the area immediately.”
	A crumbly egg	1 million cookies earned and “How to bake your dragon” purchased	25	Unlocks the cookie dragon egg.       “Thank you for adopting this robust, fun-loving cookie dragon! It will bring you years of joy and entertainment. Keep in a dry and cool place, and away from other house pets. Subscription to home insurance is strongly advised.”
	Dragon cookie	“Bake dragon cookie” dragon training completed	70 quadrillion	Cookie production multiplier +5%.       “Imbued with the vigor and vitality of a full-grown cookie dragon, this mystical cookie will embolden your empire for the generations to come.”

 
Completing Krumblor’s training will give you the achievement “Here be dragon”
 
 
 

Stages of your dragon

Dragon Egg
 
 

Available action/description	Sacrifice
Chip it	1 million cookies
Chip it	2 million cookies
Chip it	4 million cookies

 
Shivering dragon egg
 
 

Available action/description	Sacrifice
Hatch it	8 million cookies

 
Krumblor, cookie hatchling
 
 

Available action/description	Sacrifice
Train Breath of Milk       Aura: kittens are 5% more effective	16 million cookies
Train Dragon Cursor       Aura: clicking is 5% more effective	100 Cursors
Train Elder Battalion       Aura: grandmas gain +1% CpS for every non-grandma building	100 Grandmas
Train Reaper of Fields       Aura: golden cookies may trigger a Dragon Harvest	100 Farms

 
Krumblor, cookie dragon
 
 

Available action/description	Sacrifice
Train Earth Shatterer       Aura: buildings sell back for 50% instead of 25%	100 Mines
Train Master of the Armory       Aura: all upgrades are 2% cheaper	100 Factories
Train Fierce Hoarder       Aura: all buildings are 2% cheaper	100 Banks
Train Dragon God       Aura: prestige CpS bonus +5%	100 Temples
Train Arcane Aura       Aura: golden cookies appear 5% more often	100 Wizard towers
Train Dragonflight       Aura: golden cookies may trigger a Dragonflight	100 Shipments
Train Unholy Dominion       Aura: wrath cookies give 10% more cookies	100 Portals
Train Epoch Manipulator       Aura: golden cookie effects last 5% longer	100 Time machines
Train Mind Over Matter       Aura: +25% random drops	100 Antimatter condensers
Train Radiant Appetite       Aura: all cookie production multiplied by 2	100 Prisms
Train Dragon’s Fortune       Aura: +123% CpS per golden cookie on-screen	100 Chancemakers
Train Dragon’s Curve       Aura: sugar lumps grow 5% faster, 50% weirder	100 Fractal engines
Train Dragon’s Curve       Aura: sugar lumps grow 5% faster, 50% weirder	100 Fractal engines
Train Reality Bending       Aura: 10% of every other aura, combined	100 Javascript consoles
Train Dragon Orbs       Aura: selling your best building may grant a wish	100 Idleverses
Bake dragon cookie       Delicious!	50 of every building
Train secondary aura       Lets you have two dragon auras simultaneously	200 of every building

 
Completing Krumblor’s training will give you the achievement “Here be dragon”
 

 
 
 

Auras

Icon	Aura Name	Description	Base Aura Effect
	Breath of Milk	Kittens are 5% more effective.	Milk Multiplier: 1.05
	Dragon Cursor	Clicking is 5% more effective.	Click Multiplier: 1.05
	Elder Battalion	Grandmas gain +1% CpS for every non-grandma building.	Grandma Multiplier: 1 + (0.01 x (N – G))
	Reaper of Fields	Golden cookies may trigger a Dragon Harvest.	19.25% chance of adding to effect pool. 5% chance if grandmapocalypse
	Earth Shatterer	Buildings sell back for 50% instead of 25%.	Sellback Rate: 50%
	Master of the Armory	All upgrades are 2% cheaper.	Discount Multiplier: 0.98
	Fierce Hoarder	All buildings are 2% cheaper.	Discount Multiplier: 0.98
	Dragon God	Prestige CpS bonus +5%.	Prestige Multiplier: 1.05
	Arcane Aura	Golden cookies appear +5% more often.	Golden Spawn Multiplier: 1.05
	Dragonflight	Golden cookies may trigger a Dragonflight.	19.25% chance of adding to effect pool 5% chance if grandmapocalypse
	Ancestral Metamorphosis	Golden cookies give 10% more cookies.	Golden Gain Multiplier: 1.1
	Unholy Dominion	Wrath cookies give 10% more cookies	Wrath Gain Multiplier: 1.1
	Epoch Manipulator	Golden cookies last 5% longer.	Golden Time Multiplier: 1.05
	Mind Over Matter	Random drops are 25% more common.	Random Drop Multiplier: 1.25
	Radiant Appetite	All cookie production multiplied by 2.	Production Multiplier: 2
	Dragon’s Fortune	+123% CpS per golden cookie on-screen, multiplicative.	Golden CpS Multiplier: 2.23
	Dragon’s Curve	+5% sugar lump growth and sugar lumps are twice as likely to be unusual.	Sugar Lump Aging Multiplier: 1.05       Sugar lump type selection: 1 reroll
	Reality Bending	One tenth of every other dragon aura, combined.	• Milk Multiplier: 1.005       • Click Multiplier: 1.005       • Grandma Multiplier: 1 + (0.001 x (N – G))       • Dragon Harvest: 0.5-1.925% chance to pool       • Sellback Rate: 27.5%       • Upgrade Discount Multiplier: 0.998       • Building Discount Multiplier: 0.998       • Prestige Multiplier: 1.005       • Golden Spawn Multiplier: 1.005       • Dragonflight: 0.5-1.925% chance to pool       • Golden Gain Multiplier: 1.01       • Wrath Gain Multiplier: 1.01       • Golden Time Multiplier: 1.005       • Random Drop Multiplier: 1.025       • Production Multiplier: 1.1       • Golden CpS Multiplier: 1.123       • Sugar Lumps: 1.005 aging multiplier 10% chance to reroll       • Wish Chance: 1%
	Dragon Orbs	With no buffs and no golden cookies on screen, selling your most powerful building has 10% chance to summon one.	Wish Chance: 10%

 
 
 

Petting the Dragon

After the player purchases Pet the dragon, it is possible to pet the dragon (clicking on the dragon’s picture); this will trigger heart particles. If the dragon has been leveled up beyond level 8 (after sacrificing 100 farms), every time it is petted there is a 5% chance to drop an upgrade.
 
 
The choice of the dropped upgrade goes as follows: first, the game shuffle the list of available drops (Dragon scale, Dragon claw, Dragon fang, Dragon teddy bear) based on the game seed. Then, if the minute of the current time is between 0 and 14, the first upgrade of the shuffle is available for dropping (so if the 5% test passes, it is that upgrade that is dropped). If the minute is between 15 and 29, the second upgrade may be dropped, and so on.
 
 
Since the shuffle is based only on the game seed, to get all four drops it is necessary to pet the dragon every quarter of an hour.
 
 
Note that the 5% is not affected by upgrades and effects that change random drop rates (like Cosmic Beginner’s Luck and Keenmoss).
 
 

Icon	Name	Unlock Condition	Base price	Description
	Dragon scale	Random drop from petting Krumblor	1800 x CpS (x 0.1 if max level dragon)	Cookie production multiplier +3%.       Cost scales with CpS, but 10 times cheaper with a fully-trained dragon.       “Your dragon sheds these regularly, so this one probably won’t be missed. Note: icon not to scale.”
	Dragon claw	Random drop from petting Krumblor	1800 x CpS (x 0.1 if max level dragon)	Clicks are +3% more powerful. Cost scales with CpS, but 10 times cheaper with a fully-trained dragon.       “Will grow back in a few days’ time. A six-inch retractable claw, like a razor, from the middle toe. So you know, try to show a little respect.”
	Dragon claw	Random drop from petting Krumblor	1800 x CpS (x 0.1 if maxlevel dragon)	+3% golden cookie gains. Dragon harvest and Dragonflight are 10% stronger. Cost scales with CpS, but 10 times cheaper with a fully-trained dragon.       “Just a fallen baby tooth your dragon wanted you to have, as a gift. It might be smaller than an adult tooth, but it’s still frighteningly sharp – and displays some awe-inspiring cavities, which you might expect from a creature made out of sweets.”
	Dragon teddy bear	Random drop from petting Krumblor	1800 x CpS (x 0.1 if max level dragon)	+3% random drops.       Cost scales with CpS, but 10 times cheaper with a fully-trained dragon.       “Your dragon used to sleep with this. Now it’s time for you to have it.       Crafted in the likelihood of a fearsome beast. Stuffed with magical herbs picked long ago by a wandering wizard. Woven from elven yarn and a polyester blend.”

 
 
 

Dragonflight

A Dragonflight gives x1111 cookies per click for 10 seconds and only works for manual clicking (so Cursors are unaffected). Only has a chance to stack with Click Frenzy. Whenever you activate a Dragonflight, there’s an 80% chance to override any pre-existing Click Frenzy. It can also indirectly stack with Frenzy and Building Special, for the same reason as regular Click Frenzies. Requires Dragonflight aura to be active on Krumblor.
 
 

 
 
 

Strategies

If a player is going for the overall highest CPS boosts with auras, a combination of Breath of Milk and Radiant Appetite will produce the largest CPS increase. If a player is going for harvesting as many sugar lumps as possible, they should use a combination of Dragon’s Curve and Reality Bending, as it reduces the maturation time and increases unusual lump rate the most. If you only have one aura slot (have not sacrificed 200 of each building), then Dragonflight when actively playing, and Radiant Appetite when you are not would probably be most effective.
 
 
In early game, the best aura for idling is Elder Battalion. Elder Battalion gives way more CPS when you don’t have all kitten upgrades.
 
 
In mid-game I recommend to play little more actively. Because when you get Dragonflight, you can then start “hunting” the Frenzy AND Dragoflight combination. This can give enormous boost even if you’re clicking manually. (Using macro or automatic clicker could give INSANE amount of cookies). If idling, you should use Breath of Milk.
 
 
In late game when you have all auras, all kitten upgrades (and possibly second slot for aura). Try to get that Frenzy+Dragonflight combination when playing actively and Radiant Appetite for the second aura. If idling, use Radiant Appetite and Breath of Milk and let wrinklers come.
 
 

 
 
This image shows the multiplier for the Breath of Milk dragon aura, based on the milk percentage and which kitten upgrades are active (up to kitten experts). In each group of 4 lines, grouped by color, the bottom line is the base multiplier, the next line is the multiplier with Santa’s milk and cookies, the next line is the multiplier with Kitten angels, and the top line is the multiplier with both. The lines for each kitten upgrade assume that all previous kitten upgrades are active as well.
 
 
The overall effect of Dragon Cursor depends on how much the player clicks the Big Cookie, but as a rough estimate, with all upgrades, they will make approximately 1% more cookies at 2 clicks per second, 2% at 4 clicks per second, 3% at 10 clicks per second, 4% at 25 clicks per second, 4.5% at 55 clicks per second, and 4.9% at 300 clicks per second.
 
 
With optimal building distribution, Elder Battalion will give an overall production increase of about 1%. It can increase total production in the early game by a 5 fold after the Grandmapocalypse. This will become less significant the further the player progresses in the game. It can, however, be used to obtain the achievements “Gushing grannies” (bake 10 quintillion cookies with grandmas), “Panic at the bingo” (bake 100 septillion cookies with grandmas), and “Frantiquilities” (bake 1 decillion cookies with grandmas) quicker, due to having a larger general CpS buff to grandma CpS than Radiant Appetite, Dragon’s Fortune, and Dragon Harvest.
 
 
The overall effect of Reaper of Fields has not yet been calculated, but will eventually be included in Expected Long Term Cookie Production.
 
 
Earth Shatterer should be used before selling all buildings, using the Chocolate egg, and ascending.
 
 

 
 
The overall effect of Dragon God scales up to 5% with Prestige, as shown in this image on a log scale.
 
 
The overall effect of Arcane Aura has not yet been calculated, but will eventually be included in Expected Long Term Cookie Production. A rough estimate is about 5% for active play.
 
 
Detailed calculations for Dragonflight will eventually be included in Expected Long Term Cookie Production. A rough estimate is a 150% increase in click-based production, which translates roughly to a 20% increase at 1 click per second, 35% at 2 clicks per second, 50% at 3 clicks per second, 60% at 4 clicks per second, 80% at 7 clicks per second, 100% at 13 clicks per second, and 120% at 25 clicks per second.
 
 
Ancestral Metamorphosis and Unholy Dominion only affect Lucky and Chain cookies, which means their effects reduce fairly quickly with an active playstyle. The benefit of Ancestral Metamorphosis drops from about 8% with an idle playstyle, to 5% at 4 clicks per second, to 3% at 10 clicks per second, to 2% at 20 clicks per second, to 1% at 45 clicks per second.
 
 
The overall effect of Epoch Manipulator has not yet been calculated, but will eventually be included in Expected Long Term Cookie Production. A rough estimate is about 5%.
 
 
Radiant Appetite has a flat 100% bonus to all production. It easily produces the largest boost in production out of all the auras.
 
 
Dragon’s Fortune can grant a multiplier of over 2 with one golden cookie on the screen. This can be coupled well with Force The Hand Of Fate. It is however risky to have this, due to golden cookies not being truly “permanent”, in fact the bonuses can last not more than two or three times a Dragonflight, giving much less of a multiplier. It is still possible to force many golden cookies, find a Dragonflight cookie, and have a Dragonflight twice or even thrice as powerful as a regular one.
 
 
Dragon’s Curve only affects sugar lumps, but they can be used to buy various improvements. See sugar lump strategy.
 
 
Reality Bending has many effects, and may depend on the 2nd aura. The overall effects have not yet been calculated, but will eventually be included in Expected Long Term Cookie Production.
 
 

 
 
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