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These Evil aligned building upgrades appear when reaching certain threshold of buildings when playing a evil faction.

By default, the two first tier upgrades of each building type also gives 1 assistant in addition to their effect.

All pre-ascension upgrades are free post.

* The 3,500+ building upgrades are only available post-ascension.

Slave Pens
Name Cost Unlock Requirements Effect
Smaller Cells 36,200 5 Slave Pens Increase Slave Pen production by 100%.
PA: 7.18%
Punishment Whips 1.185 M
1.185E6
25 Slave Pens Increase Slave Pen production by 100%.
PA: 7.18%
Selective Breeding 1.926 B
1.926E9
75 Slave Pens Increase Slave Pen production by 100%.
PA: 7.18%
Iron Shackles 91.62 T
9.162E13
150 Slave Pens Increase Slave Pen production by 100%.
PA: 7.18%
Barbed Chains 124.1 Qa
1.241E17
200 Slave Pens Increase Slave Pen production by 100%.
PA: 7.18%
Cat-o-nine-tails 174.9 Sx
1.749E23
300 Slave Pens Increase Slave Pen production by 200%.
PA: 11.6%
24h Shifts 239.6 Oc
2.396E29
400 Slave Pens Increase Slave Pen production by 200%.
PA: 11.6%
Enhancement Drugs 321.6 Dc
3.216E35
500 Slave Pens Increase Slave Pen production by 200%.
PA: 11.6%
Job Enforcers 424.8 Dd
4.248E41
600 Slave Pens Increase Slave Pen production by 200%.
PA: 11.6%
Cruel Slavemaster 554.3 Qad
5.543E47
700 Slave Pens Increase Slave Pen production by 200%.
PA: 11.6%
Dirtier Cells 716 Sxd
7.16E53
800 Slave Pens Increase Slave Pen production by 300%.
PA: 14.9%
Human Experiments 917.3 Ocd
9.173E59
900 Slave Pens Increase Slave Pen production by 300%.
PA: 14.9%
Rights Abolition 1.167 Uvg
1.167E66
1,000 Slave Pens Increase Slave Pen production by 300%.
PA: 14.9%
Over-Overtimes 1.476 Tvg
1.476E72
1,100 Slave Pens Increase Slave Pen production by 300%.
PA: 14.9%
Social Dregs 2.012 Sxvg
2.012E81
1,250 Slave Pens Increase Slave Pen production by 300%.
PA: 14.9%
Periodic Tortures 3.207 Utg
3.207E96
1,500 Slave Pens Increase Slave Pen production by 400%.
PA: 17.5%
Rotten Rations 5.093 Sxtg
5.093E111
1,750 Slave Pens Increase Slave Pen production by 400%.
PA: 17.5%
Rat Companions 8.058 Uqag
8.058E126
2,000 Slave Pens Increase Slave Pen production by 400%.
PA: 17.5%
Soiled Floors 18.99 UQig
1.899E157
2,500 Slave Pens Increase Slave Pen production by 400%.
PA: 17.5%
Diamond Chains* 306.6 Qid
3.066E50
3,500 Slave Pens Increase Slave Pen production by 50%.
Ruthless Executives* 844.1 Spd
8.441E56
4,000 Slave Pens Increase Slave Pen production by 50%.
Sensory Deprivation* 93.31 Tqag
9.331E133
10,000 Slave Pens Increase Slave Pen production by 50%.
Orcish Arenas
Name Cost Unlock Requirements Effect
Unfair Judge 112,640 5 Orcish Arenas Increase Orcish Arena production by 100%.
PA: 7.18%
Rule Abolition 3.687 M
3.687E6
25 Orcish Arenas Increase Orcish Arena production by 100%.
PA: 7.18%
Additional Gore 5.993 B
5.993E9
75 Orcish Arenas Increase Orcish Arena production by 100%.
PA: 7.18%
Beast Fights 285.1 T
2.851E14
150 Orcish Arenas Increase Orcish Arena production by 100%.
PA: 7.18%
Blood and Sand 386.1 Qa
3.861E17
200 Orcish Arenas Increase Orcish Arena production by 100%.
PA: 7.18%
Merciless Gladiators 544.1 Sx
5.441E23
300 Orcish Arenas Increase Orcish Arena production by 200%.
PA: 11.6%
Jagged Blades 745.5 Oc
7.455E29
400 Orcish Arenas Increase Orcish Arena production by 200%.
PA: 11.6%
Spectacular Executions 1 Ud
1E36
500 Orcish Arenas Increase Orcish Arena production by 200%.
PA: 11.6%
Arena Champions 1.322 Td
1.322E42
600 Orcish Arenas Increase Orcish Arena production by 200%.
PA: 11.6%
Deathmatches 1.725 Qid
1.725E48
700 Orcish Arenas Increase Orcish Arena production by 200%.
PA: 11.6%
The Thirsty Games 2.228 Spd
2.228E54
800 Orcish Arenas Increase Orcish Arena production by 300%.
PA: 14.9%
Clapping Hands 2.854 Nod
2.854E60
900 Orcish Arenas Increase Orcish Arena production by 300%.
PA: 14.9%
Savagery 3.631 Uvg
3.631E66
1,000 Orcish Arenas Increase Orcish Arena production by 300%.
PA: 14.9%
Grand Ampthitheater 4.591 Tvg
4.591E72
1,100 Orcish Arenas Increase Orcish Arena production by 300%.
PA: 14.9%
Mortal Combat 6 Sxvg
6.26E81
1,250 Orcish Arenas Increase Orcish Arena production by 300%.
PA: 14.9%
Monster Arena 9.979 Utg
9.979E96
1,500 Orcish Arenas Increase Orcish Arena production by 400%.
PA: 17.5%
Larger Gallery 15.84 Sxtg
1.584E112
1,750 Orcish Arenas Increase Orcish Arena production by 400%.
PA: 17.5%
Me Smash! 25.07 Uqag
2.507E127
2,000 Orcish Arenas Increase Orcish Arena production by 400%.
PA: 17.5%
Rioting Audience 59.09 UQig
5.909E157
2,500 Orcish Arenas Increase Orcish Arena production by 400%.
PA: 17.5%
Spiked Floor* 953.9 Qid
9.539E50
3,500 Orcish Arenas Increase Orcish Arena production by 50%.
Monster Ex Machina* 2.626 Ocd
2.626E57
4,000 Orcish Arenas Increase Orcish Arena production by 50%.
Dramatic Twist* 290.3 Tqag
2.903E134
10,000 Orcish Arenas Increase Orcish Arena production by 50%.
Witch Conclaves (Goblin Banks)
Name Cost Unlock Requirements Effect
Witch Sabbath 764,320 5 Witch Conclaves Increase Witch Conclave production by 100%.
PA: 7.18%
Black Magic 25.02 M
2.502E7
25 Witch Conclaves Increase Witch Conclave production by 100%.
PA: 7.18%
Cabalism 40.67 B
4.067E10
75 Witch Conclaves Increase Witch Conclave production by 100%.
PA: 7.18%
Forbidden Knowledge 1.934 Qa
1.934E15
150 Witch Conclaves Increase Witch Conclave production by 100%.
PA: 7.18%
Unforgivable Curses 2 Qi
2.62E18
200 Witch Conclaves Increase Witch Conclave production by 100%.
PA: 7.18%
Wiccan Knowledge 3.692 Sp
3.692E24
300 Witch Conclaves Increase Witch Conclave production by 200%.
PA: 11.6%
Golden Arthana 5.058 No
5.058E30
400 Witch Conclaves Increase Witch Conclave production by 200%.
PA: 11.6%
Voodoo Dolls 6.789 Ud
6.789E36
500 Witch Conclaves Increase Witch Conclave production by 200%.
PA: 11.6%
Boiling Cauldron 8.969 Td
8.969E42
600 Witch Conclaves Increase Witch Conclave production by 200%.
PA: 11.6%
Soul for Sale 11 Qid
1.17E49
700 Witch Conclaves Increase Witch Conclave production by 200%.
PA: 11.6%
Red Crystal Shoes 15.12 Spd
1.512E55
800 Witch Conclaves Increase Witch Conclave production by 300%.
PA: 14.9%
Fithos Lusec 19.37 Nod
1.937E61
900 Witch Conclaves Increase Witch Conclave production by 300%.
PA: 14.9%
Boundary Fields 24.64 Uvg
2.464E67
1,000 Witch Conclaves Increase Witch Conclave production by 300%.
PA: 14.9%
Obscure Divination 31.16 Tvg
3.116E73
1,100 Witch Conclaves Increase Witch Conclave production by 300%.
PA: 14.9%
Eldritch Rites 42.48 Sxvg
4.248E82
1,250 Witch Conclaves Increase Witch Conclave production by 300%.
PA: 14.9%
Profane Emblems 67.71 Utg
6.771E97
1,500 Witch Conclaves Increase Witch Conclave production by 400%.
PA: 17.5%
Flying Brooms 107.5 Sxtg
1.075E113
1,750 Witch Conclaves Increase Witch Conclave production by 400%.
PA: 17.5%
Thaumaturgy 170.1 Uqag
1.701E128
2,000 Witch Conclaves Increase Witch Conclave production by 400%.
PA: 17.5%
Wartshog 401 UQig
4.01E158
2,500 Witch Conclaves Increase Witch Conclave production by 400%.
PA: 17.5%
Nether Codex* 6.473 Sxd
6.473E51
3,500 Witch Conclaves Increase Witch Conclave production by 50%.
Tattered Cloaks* 17.82 Ocd
1.782E58
4,000 Witch Conclaves Increase Witch Conclave production by 50%.
Black Cats* 1 Qaqag
1.97E135
10,000 Witch Conclaves Increase Witch Conclave production by 50%.
Dark Temples (Spider Sanctuaries)
Name Cost Unlock Requirements Effect
Sacrificial Altar 8 M
8.89E6
5 Dark Temples Increase Dark Temple production by 100%.
PA: 7.18%
Dark Rituals 291 M
2.91E8
25 Dark Temples Increase Dark Temple production by 100%.
PA: 7.18%
Heart of Darkness 472 B
4.72E11
75 Dark Temples Increase Dark Temple production by 100%.
PA: 7.18%
Hidden Sect 22 Qa
2.25E16
150 Dark Temples Increase Dark Temple production by 100%.
PA: 7.18%
Cultist Madness 30.48 Qi
3.048E19
200 Dark Temples Increase Dark Temple production by 100%.
PA: 7.18%
Bloody Dagger 42.95 Sp
4.295E25
300 Dark Temples Increase Dark Temple production by 200%.
PA: 11.6%
Heretic Creeds 58.54 No
5.854E31
400 Dark Temples Increase Dark Temple production by 200%.
PA: 11.6%
Spawn of the Damned 78.96 Ud
7.896E37
500 Dark Temples Increase Dark Temple production by 200%.
PA: 11.6%
Otherworldly Summoning 104.3 Td
1.043E44
600 Dark Temples Increase Dark Temple production by 200%.
PA: 11.6%
Shadow Priests 136.1 Qid
1.361E50
700 Dark Temples Increase Dark Temple production by 200%.
PA: 11.6%
Underworld Pantheon 175.8 Spd
1.758E56
800 Dark Temples Increase Dark Temple production by 300%.
PA: 14.9%
Unholy Curse 225.2 Nod
2.252E62
900 Dark Temples Increase Dark Temple production by 300%.
PA: 14.9%
Ceremony of Damnation 286.6 Uvg
2.866E68
1,000 Dark Temples Increase Dark Temple production by 300%.
PA: 14.9%
Portraits of Ruin 362.4 Tvg
3.624E74
1,100 Dark Temples Increase Dark Temple production by 300%.
PA: 14.9%
Shadow Lords 494.1 Sxvg
4.941E83
1,250 Dark Temples Increase Dark Temple production by 300%.
PA: 14.9%
Blasphemy 787.6 Utg
7.876E98
1,500 Dark Temples Increase Dark Temple production by 400%.
PA: 17.5%
Horned Creatures 1.251 Sptg
1.251E114
1,750 Dark Temples Increase Dark Temple production by 400%.
PA: 17.5%
Darkspawns 1.979 Dqag
1.979E129
2,000 Dark Temples Increase Dark Temple production by 400%.
PA: 17.5%
Shadow Tendrils 4.664 DQig
4.664E159
2,500 Dark Temples Increase Dark Temple production by 400%.
PA: 17.5%
Corridors of Doo(o)m* 75.29 Sxd
7.529E52
3,500 Dark Temples Increase Dark Temple production by 50%.
Chambers of Dread* 207.3 Ocd
2.073E59
4,000 Dark Temples Increase Dark Temple production by 50%.
Silky Death* 22.91 Qaqag
2.291E136
10,000 Dark Temples Increase Dark Temple production by 50%.
Necropolises (Undercities)
Name Cost Unlock Requirements Effect
Desecrated Crypt 146.8 M
1.468E8
5 Necropolises Increase Necropolis production by 100%.
PA: 7.18%
Rotting Corpses 4.806 B
4.806E9
25 Necropolises Increase Necropolis production by 100%.
PA: 7.18%
Soul Storage 7.812 T
7.812E12
75 Necropolises Increase Necropolis production by 100%.
PA: 7.18%
Roaming Zombies 371.6 Qa
3.716E17
150 Necropolises Increase Necropolis production by 100%.
PA: 7.18%
Free Brains 503.3 Qi
5.033E20
200 Necropolises Increase Necropolis production by 100%.
PA: 7.18%
Skeletal Hands 709.3 Sp
7.093E26
300 Necropolises Increase Necropolis production by 200%.
PA: 11.6%
Rising Bodies 971.8 No
9.718E32
400 Necropolises Increase Necropolis production by 200%.
PA: 11.6%
The First of Them 1.304 Dd
1.304E39
500 Necropolises Increase Necropolis production by 200%.
PA: 11.6%
Homeless Evil 1.723 Qad
1.723E45
600 Necropolises Increase Necropolis production by 200%.
PA: 11.6%
Rust in Peace 2.248 Sxd
2.248E51
700 Necropolises Increase Necropolis production by 200%.
PA: 11.6%
Stonecarved Epitaphs 2.904 Ocd
2.904E57
800 Necropolises Increase Necropolis production by 300%.
PA: 14.9%
Heavy Tombstones 3 Vg
3.72E63
900 Necropolises Increase Necropolis production by 300%.
PA: 14.9%
Blight Spread 4.733 Dvg
4.733E69
1,000 Necropolises Increase Necropolis production by 300%.
PA: 14.9%
Putrescence 5.985 Qavg
5.985E75
1,100 Necropolises Increase Necropolis production by 300%.
PA: 14.9%
Foul Stench 8 Spvg
8.16E84
1,250 Necropolises Increase Necropolis production by 300%.
PA: 14.9%
Miasma Generation 13.01 Dtg
1.301E100
1,500 Necropolises Increase Necropolis production by 400%.
PA: 17.5%
Green Goo 20.65 Sptg
2.065E115
1,750 Necropolises Increase Necropolis production by 400%.
PA: 17.5%
Wastelands 32.68 Dqag
3.268E130
2,000 Necropolises Increase Necropolis production by 400%.
PA: 17.5%
Entombment 77.03 DQig
7.703E160
2,500 Necropolises Increase Necropolis production by 400%.
PA: 17.5%
Funerary Candles* 1.243 Spd
1.243E54
3,500 Necropolises Increase Necropolis production by 50%.
Poltergeists* 3.423 Nod
3.423E60
4,000 Necropolises Increase Necropolis production by 50%.
Will-o'-the-wisp* 378.4 Qaqag
3.784E137
10,000 Necropolises Increase Necropolis production by 50%.
Evil Fortresses
Name Cost Unlock Requirements Effect
Spiked Walls 2.916 B
2.916E9
5 Evil Fortresses Increase Evil Fortress production by 100%.
PA: 7.18%
Deep Dungeons 95.46 B
9.546E10
25 Evil Fortresses Increase Evil Fortress production by 100%.
PA: 7.18%
Obsidian Throne 155.2 T
1.552E14
75 Evil Fortresses Increase Evil Fortress production by 100%.
PA: 7.18%
Gargoyle Statues 7.381 Qi
7.381E18
150 Evil Fortresses Increase Evil Fortress production by 100%.
PA: 7.18%
Black Pinnacles 9.998 Sx
9.998E21
200 Evil Fortresses Increase Evil Fortress production by 100%.
PA: 7.18%
Guard Hounds 14.09 Oc
1.409E28
300 Evil Fortresses Increase Evil Fortress production by 200%.
PA: 11.6%
Obsidian Gates 19 Dc
1.93E34
400 Evil Fortresses Increase Evil Fortress production by 200%.
PA: 11.6%
Iron Maidens 25 Dd
2.59E40
500 Evil Fortresses Increase Evil Fortress production by 200%.
PA: 11.6%
Black Butts 34.22 Qad
3.422E46
600 Evil Fortresses Increase Evil Fortress production by 200%.
PA: 11.6%
Treacherous Lord 44.65 Sxd
4.465E52
700 Evil Fortresses Increase Evil Fortress production by 200%.
PA: 11.6%
Impaled Heads 57.68 Ocd
5.768E58
800 Evil Fortresses Increase Evil Fortress production by 300%.
PA: 14.9%
Black Guards 73.89 Vg
7.389E64
900 Evil Fortresses Increase Evil Fortress production by 300%.
PA: 14.9%
Surrounding Darkness 94.01 Dvg
9.401E70
1,000 Evil Fortresses Increase Evil Fortress production by 300%.
PA: 14.9%
Baleful Presence 118.9 Qavg
1.189E77
1,100 Evil Fortresses Increase Evil Fortress production by 300%.
PA: 14.9%
Dungeon Keepers 162.1 Spvg
1.621E86
1,250 Evil Fortresses Increase Evil Fortress production by 300%.
PA: 14.9%
Killer Mist 258.4 Dtg
2.584E101
1,500 Evil Fortresses Increase Evil Fortress production by 400%.
PA: 17.5%
Acid Pits 410.2 Sptg
4.102E116
1,750 Evil Fortresses Increase Evil Fortress production by 400%.
PA: 17.5%
Blood Fortress 649.1 Dqag
6.491E131
2,000 Evil Fortresses Increase Evil Fortress production by 400%.
PA: 17.5%
Dark Throne 1 TQig
1.53E162
2,500 Evil Fortresses Increase Evil Fortress production by 400%.
PA: 17.5%
Evilspawns* 24 Spd
2.47E55
3,500 Evil Fortresses Increase Evil Fortress production by 50%.
Heinous Colonnade* 68 Nod
6.8E61
4,000 Evil Fortresses Increase Evil Fortress production by 50%.
Horrific Battlements* 7.517 Qiqag
7.517E138
10,000 Evil Fortresses Increase Evil Fortress production by 50%.
Hell Portals (Infernal Realms)
Name Cost Unlock Requirements Effect
Continuous Pain 64.36 B
6.436E10
5 Hell Portals Increase Hell Portal production by 100%.
PA: 7.18%
Endless Sorrow 2.107 T
2.107E12
25 Hell Portals Increase Hell Portal production by 100%.
PA: 7.18%
Eternal Anguish 3.425 Qa
3.425E15
75 Hell Portals Increase Hell Portal production by 100%.
PA: 7.18%
Unending Agony 162.9 Qi
1.629E20
150 Hell Portals Increase Hell Portal production by 100%.
PA: 7.18%
Interminable Affliction 220.6 Sx
2.206E23
200 Hell Portals Increase Hell Portal production by 100%.
PA: 7.18%
Unlimited Torment 310.9 Oc
3.109E29
300 Hell Portals Increase Hell Portal production by 200%.
PA: 11.6%
Perennial Grief 426 Dc
4.26E35
400 Hell Portals Increase Hell Portal production by 200%.
PA: 11.6%
Sempiternal Distress 571.7 Dd
5.717E41
500 Hell Portals Increase Hell Portal production by 200%.
PA: 11.6%
Boundless Suffering 755.3 Qad
7.553E47
600 Hell Portals Increase Hell Portal production by 200%.
PA: 11.6%
Immeasurable Sadness 985.5 Sxd
9.855E53
700 Hell Portals Increase Hell Portal production by 200%.
PA: 11.6%
Unfathomable Misery 1.273 Nod
1.273E60
800 Hell Portals Increase Hell Portal production by 300%.
PA: 14.9%
Infinite Vexation 1.631 Uvg
1.631E66
900 Hell Portals Increase Hell Portal production by 300%.
PA: 14.9%
Catastrophic Events 2.075 Tvg
2.075E72
1,000 Hell Portals Increase Hell Portal production by 300%.
PA: 14.9%
Disastrous Coincidences 2.624 Qivg
2.624E78
1,100 Hell Portals Increase Hell Portal production by 300%.
PA: 14.9%
Terrible Instants 3.577 Ocvg
3.577E87
1,250 Hell Portals Increase Hell Portal production by 300%.
PA: 14.9%
Tragic Moments 5.702 Ttg
5.702E102
1,500 Hell Portals Increase Hell Portal production by 400%.
PA: 17.5%
Horrific Image 9.054 Octg
9.054E117
1,750 Hell Portals Increase Hell Portal production by 400%.
PA: 17.5%
Figment of Ruin 14.33 Tqag
1.433E133
2,000 Hell Portals Increase Hell Portal production by 400%.
PA: 17.5%
Thought of Devastation 33.77 TQig
3.377E163
2,500 Hell Portals Increase Hell Portal production by 400%.
PA: 17.5%
Epitome of Tragedy* 545.1 Spd
5.451E56
3,500 Hell Portals Increase Hell Portal production by 50%.
Deepest Misfortune* 1.501 Vg
1.501E63
4,000 Hell Portals Increase Hell Portal production by 50%.
Unbearable Calamity* 165.9 Qiqag
1.659E140
10,000 Hell Portals Increase Hell Portal production by 50%.

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