"The mighty and fearless Demons cannot bother with petty trifles, they only care for greatness and power. Affiliating yourself with the Demons faction will hugely improve the output of higher tier buildings."

The Demon Faction

Part of the Evil Vanilla Factions, the Demons have upgrades increasing production of highest tier buildings and perks based on the amount of trophies you have.
Their Bloodline, more used in late games, can become powerful for long reincarnations as it increases production based on total time spent being Evil.

Tier 1 Upgrades

Name Cost Effect
Demon Trade Treaty 20 Demon Coins Unlocks Demon Upgrades.
Torture Chambers 50 M
5E7
Increase the production of Evil Fortresses by 5% per assistants you own.
Devil Tyrant 500 M
5E8
Increase the production of the three highest tier buildings by 0.5% per Trophy.
Evil Conquerors 5 B
5E9
Increase the production of all other buildings by 1.5% per Evil Fortresses you own.

Tier 2 Upgrades

Name Cost Effect
Demon Friendship Pact 100 Demon Coins Unlocks more Demon Upgrades.
Lava Pits 500 B
5E11
Increase the base production of Evil Fortresses and Hell Portals by +200,000.
Demon Overseers 5 T
5E12
Increase the production of the three highest tier buildings by 0.5% per Trophy.
Demonic Presence 50 T
5E13
Increase the production of the two highest tier buildings by 0.2% for each Building you own.

Tier 3 Upgrades

Name Cost Effect
Demon Alliance 500 Demon Coins Unlocks more Demon Upgrades.
Infernal Magic 5 Qa
5E15
Hell Portals also increase your mana regeneration rate.
Burning Legion 50 Qa
5E16
You gain assistants based on the amount of Hell Portals you own.
Very Bad Guys 500 Qa
5E17
Let Blood Frenzy target Hall of Legends and increase the production of Halls of Legends by +0.05% per trophy for each Evil Fortress and Hell Portal you own.

Unique Buildings

At R16, the Demon's Hell Portals can be upgraded to a Unique Building: Infernal Realm, which is required for some challenges and research quests.

At R100, the Demon's Hall of Legends can be upgraded to a Unique Building: Burning Abyss, which when bought will grant access to the Faction Union upgrade.

Demon Research

Upon reaching R16, the game advisor tells us that the Vanilla factions have gained tremendous power. Their power can be ours if we get ready and seek them again.

To unlock Demon research, play the Demon faction and simply follow the appearing quests (Do not prestige). These can be done in separate game plays.

Demon Research Requirements
Name In-game Description Requirements Cost
Infernal Realm Quest Useless underling, be warned! The Demons are going to invade your world with all their might. If you know which side you want to be on when that happens, build those Hell Portals!

Required once throughout the entire game play and does not count towards the bought upgrade stat.

R16 + 1500 Hell Portals 10 Dtg
1E100
Infernal Realm Upgrade Hell Portals To Infernal Realms, boosting their production by 100% per Trophy you unlocked and unlocking more unique perks for the building.
+Access to the Research Facilities.
Buy Infernal Realm Quest 10 Ttg
1E103
Strategy Room Unlocks the Warfare research facility and increases Demon production by 100000%, plus an additional bonus based on Warfare research points.

Required once throughout the entire game play and does not count towards the bought upgrade stat.

All Demon faction upgrades bought, Infernal Realm 10 Notg (1E121) coins, 1 M (1E6) Demon coins
Trophy & Upgrade
Warlord Increase Warfare upgrade slot by 1 R20+, Discover at least 10 Warfare Researches 250 Noqag
2.5E152

Demon Leges

Upon reaching R100, the Proof of Chaos will become available, which provides a quest for an additional unique building, which when bought will grant access to the its Union upgrade.

Demon Leges Requirements
Name Type Description Requirement Cost
Burning Abyss Quest Quest Upgrade Grants access to Unique Building. 160 seconds long Call to Arms 1 Ud
1E36
Burning Abyss Unique Building Upgrade Hall of Legends to Burning Abyss, boosting their production based on time spent as Evil and unlocking more unique perks for the building.
Formula: for each digit of floor(1.25 * x): sum(digit ^ (2 + (floor(log10(1 + 1.25 * x) + 1) / 10))% where x is evil time this R
+Access to the Faction Union.
Burning Abyss Quest 1 Td
1E42
Demons Union Faction Union Grants access to Union Upgrade. Burning Abyss Unique Building 1 Qi (1E18) Demon Coins
Abyssal Furnace Union Upgrade Increase the production of all buildings based on the amount of Burning Abysses you own. Higher tiers get better bonuses. Demons Union 1 Nod
1E60