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'one last thing sire,killing innocents.and i'm using the term loosely, increases your corruption hehehe,so it creates more evil energy that amplifies your power'

Gnarl explaining to the Overlord for the first time how corruption can be acceleratedEdit
OL Icon Corruption

Corruption is the game mechanic in Overlord that represents the player's level of Evil-dom.

Certain choices will affect how corrupt you are. Being evil also increases your power. As you become more corrupted, spikes will grow out of your armour.

A highly corrupted Overlord is surrounded by a red haze(starting from 50% corruption), whereas being uncorrupted gives you shining round plates, as opposed to the dark spike strewn armour of the corrupted. If you are not corrupt, people in every domain will cheer and say nice things to you. But the choices are entirely up to the player. Just know that each have their benefits.

The Dark Tower changes to your corruption level,from 0-20% the tower throne room  view will be a normal blue sky,from a 20-40% a  Dark Violet Evil Cloud Cover begins to partially surround the tower,while some parts are still blue,from 40-60,the sky will start turning red,with some normal clouds,from 60-80 the red sky starts to turn again violet,and the sun will be nearly blocked,from 80-100% the sky will be a very Dark Cloud Violet covering completely the sky,darkening the tower even more,with the sun being a small white dot in the sky,it appears that the tower heart caused this 'corruption' to manifestate in the Overlord,collecting evil energy and imbuending it into the Overlord.increasing dramatically his power,but making him more evil at the same time,in Overlord 2,the Overlad has no spikes regardless of alignment,proving that the tower heart was what caused to make the spikes appear and generate the red haze,the theme of the Dark Tower Changes as well,,from 0 % to 49 % being a piece of 'Halfling Dim Lit Tunnel' from 50 % Activating 'TowerEntry1',indicating the great evil energy growing to power the Overlord's Power.the corruption seems to give a more savage and violent version of spells fit for an overlord that wants death and destruction,that doesn't care about innocent lives,such as Inferno targeting enemies as well civilians

OL Icon Corruption Increasing Corruption Edit

Simply wipe out enough innocents:

  • 3%You have killed a friendly peasant. An unfortunate accident or the start of an Evil rampage?
    Kill any innocent peasant in Spree (lock on peasant and attack).
  • 5%You have killed 10 females, Wenchbane!
    Kill 10 female peasants in Spree.
  • 5%You killed 20 peasants. Are you holding back?
    Kill 20 innocents.
  • 2%You are a Harasser of Humans and the people of Spree don't like you anymore.
    just kill few peasants in Spree.
  • 2%Now you've Suppressed Spree, the people officially hate you.
    you must attack a peasant in spree,and continue to kill them until they stop and start begging (their target becomes green again)
  • 10%You have killed 100 peasants. Got a taste for it have you?
    Continue to kill peasants not only in Spree, but just as well in Heaven's Peak.
  • 15%So many lives lost. So much Lifeforce for you. You are the ultimate Enemy of Mankind.
    Apparently you need to kill a total of 500 peasants for this one.
  • 5%You have killed 10 Elves, you are hereby known as Destroyer of Elves.
    Not the ghost elves mind you, the eleven (living) slaves you encounter.
  • 3%You kept the peasants' food. Your Minions are happy, the peasants are not.
    Keep the food you find in Melvin's Kitchen, yields +50 brown Lifeforce. This is the gluttony sin.
  • 10%You dumped Rose in favour of her sister Velvet.
    Once Sir William is no more, sweep the minions to carry Velvet's bed, instead of turning the wheel near Rose.dumping her. This is the lust sin.
  • 10%You traded the Elven Race for lots of lovely gold.
    Once you beat Goldo at the Royal Halls in the Golden Hills, you chose to save the 10'000 gold and not the female elves. This is the greed sin.
  • 5%The Mother Goddess statue looks great in your Tower. The Elves are a bit upset.
    Once you capture Jewel, and return the Mother Goddess statue from the Ruborian Desert, you chose to keep the statue. This is the envy sin (although if it has been worshipped by the elves then no one would want it but it must be real popular).
  • 5%You gave your traitors the punishment they deserved.
    After freeing Spree from Kahn, you chose to kill the traitors near the inn. A quick target lock and Inferno spell does the trick. This is the wrath sin and unfortanatly there is bo pride sin.

Other Evil deeds:

  • 2%You trashed all of Spree's houses, Homewrecker!
    Break down all doors of the Spree homes and send in your minions until smoke comes out of the houses.
  • 3%You have 'persuaded' Spree's peasants to come and work at your Tower.
    After doing 'Suppressor of Spree', return to the tower and go back again to the mellow hills, a peasant with a sacrificial 'virgin' girl bound to a wall will appear, offering her as a way to move you to 'mercy' towards Spree. After that you need to attack her and make 2 of your minions to carry her to the tower gate. You need to explore most of the Mellow Hills area, not just the village of Spree. You can recognize them by their lines like 'I'll not come with you, sheep murderer.' and 'Take my Sister, she's the prettier one.', when you catch them all, return to the tower and you'll have an amusing dialogue of Gnarl carrying orders to the maids.
  • 3%You trashed all of the houses in Heaven's Peak, you Town Trasher.
    There are only four such houses, spread out over the city. Again break doors, then send in the minions.
  • 2%You caused a bar room brawl in the Halfway to Heaven Inn.
    At the inn, simply attack somebody there.
  • 5%The Sacred Grove is a blackened wasteland.
    In the Evernight Forest burn down the grove, either with a Fire spell, or usually the Reds will beat you to it. This is the sloth sin.
  • 5%You've fattened the slugs by feeding the Elves to them.
    You need to open the gates for the elves in the Glittering Mine to then let the large slugs devour them, for ultimate evil. Killing the slugs and then freeing the elves yourself does *not* work, and does not yield negative "good" Corruption either!
100% Corruption total.

OL Icon Corruption Good Decreasing Corruption Edit

There are a few decisions the Overlord can make to reduce Corruption, thus letting you "accidentally" do a few bad things, but still end with 0% Corruption. Staying on the "good" side is all about *not* doing anything bad, i.e. attack innocents.

  • 2%You selflessly returned the food to the fat peasants.
    Return the food you find in Melvin's Kitchen.
  • 2%You chose to keep Mistress Rose.
    Once Sir William is no more, you did not chose Velvet as new mistress, you kept Rose.
  • 2%The Elven race will live on, thanks to you.
    Once you beat Goldo at the Royal Halls in the Golden Hills, you chose to save the female elves, graciously rejecting the 10'000 gold you could have picked up instead.
  • 2%The Elves are singing for joy at the return of the Mother Goddess statue.
    Once you capture Jewel, and return the Mother Goddess statue from the Ruborian Desert, you chose to return it to the elves.
  • 2%You were merciful to your traitors.
    After freeing Spree from Kahn, you chose to simply do nothing to the traitors near the inn, thus showing mercy.
  • 2% You have recovered the health upgrade without damaging the Sacred Grove                            ' go in the evernight swamp gate and continue to the right of the arcane blood altar and retrieve the health upgrade from the grove,without using fire spells to burn it,and without carrying reds,because they'll attack the unicorns on sight.
-12% Corruption total. Note you will never have a negative Corruption value.

Equivalent Edit

Even if the Overlord in Overlord 2 Has Full Destruction or Domination,the appereance will never change,but concept art shows the Overlord with blue horns and glowing body,indicating that was supposed to change as it did in Overlord

Endings Edit

The Corruption Value determines the ending,in 4 videos,depending on your score (0-20%,20-40%,40-60%,80-100%)with Gnarl narrating,

100% Corruption Lecture

  • Overlord corruption copy

    Side by side comparison of the Third Overlord in Arcanium armour at 100 and 0 % corruption.

The Very Land bore the mark of his corruption(Video of the overlord using Inferno Spell on Evernight Burning down the forest with praising minions)

The people lived in Fear,they spoke his name in whispers.(Video of Heaven's Peak City burning with red minions and scared citizens)

He Killed,Pillaged,and Destroyed without mercy.(video of peasants in heaven's peak underground level 2,being executed and possibly sacrified in the smelter, with Giblet and Other browns including the Guard minion) 

He Became Evil Incarnate(a peasant being tortured by a brown minion with a spear with the Overlord watching)

Third Overlord 100% Corruption Close-up

The Third Overlord Fully Corrupted,note the red armor and spikes


It looks that in the original game development a good version of the 'slaves' was available,with peasants volontary going to the dark tower after the overlord helped them out,some audio dialogue it's still left in the game files,probably was cut out because seemed too good for an overlord.

  • the possibility of hitting Gnarl for amusement like the jester,with audio files like 'Ah like the old times'  'i've said something wrong?' 'Why are you hitting Gnarl?' 
  • A possibility to destroy the mother goddess temple in evernight evidenced by the unused jester title 'Destroyer of the Mother Goddess Temple' (probably the 'Sloth' temptation for the Overlord)

It should be noted that if one was to only comit normal corrupt acts, and not ones that have to do with the seven sins, then the added negetive corruption will vause the player to have exactly 50% corruption value.


Gnarl mentions that the corruption forms not only in the overlord,but in all evil creatures such as the minions and the Halflings overtime.and more time it passes,it increases,so it's inevitable to become evil

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