The Druid Willow is a special cultural building released during the 2020 St Patrick's Day Event. The Druid Willow is part of the Celtic Forest Set.

The Druid Willow is available as one of the options through the Celtic Forest Selection Kit which also allows to upgrade the Druid Willow to level 2, thus improving its properties.

Druid Willow comes with the special set bonus. The amount of happiness and TBA depends on the buildings age and to how many other Celtic Forest Set buildings it is adjacent to.

Set Bonus

For more information see Set Bonuses.

The Druid Willow comes with the special set bonus. When it is adjacent to other buildings belonging to the Celtic Forest Set the properties of the building are improved.


Druid Willow Upgrade

The Druid Willow can be upgraded by Druid Willow Upgrade Kit item. To upgrade the Druid Willow, use the Druid Willow Upgrade item on the Druid Willow that is already situated in your city. Its upgraded version will then be placed directly on the same spot in your city and the production timer will not be reset. Note that the upgraded building will be from your current era, even if the old one was from one of the earlier ages.


Druid Willow will produce the following effects. Base effects will always be produced. Bonus effects are determined by how many other unique Celtic Forest Set buildings it is connected to.

Age Happiness Happiness/Size Celtic Forest Set Icon 1st Bonus
Defense (boost)
Celtic Forest Set Icon 2nd Bonus
Defense Boost for Attacker
BA +170 +28 3 3
IA +260 +43
EMA +310 +52
HMA +360 +60
LMA +420 +70
CA +490 +82
INA +550 +92
PE +610 +102
ME +650 +108
PME +730 +122
CE +850 +142
TE +1,030 +172
FE +1,320 +220
AF +1,590 +265
OF +1,950 +325
VF +2,540 +423
SAM +4,060 +677
SAAB +4,420 +737

Age Happiness Happiness/Size Celtic Forest Set Icon 1st Bonus
Defense (boost)
Celtic Forest Set Icon 2nd Bonus
Defense Boost for Attacker
BA +200 +33 6 6
IA +280 +47
EMA +360 +60
HMA +430 +72
LMA +510 +85
CA +600 +100
INA +680 +113
PE +750 +125
ME +800 +133
PME +940 +157
CE +1,090 +182
TE +1,320 +220
FE +1,760 +293
AF +2,150 +358
OF +2,720 +453
VF +3,670 +612
SAM +5,870 +978
SAAB +6,380 +1,063


  • Druid Willow Lvl 1
  • Druid Willow Lvl 2

See also

Celtic Forest Set
Set Buildings
Selection Kit

Other Special Buildings

Special Buildings
Residential Buildings Abandoned AsylumAirshipAltar GardenAthlete Living QuartersBlack TowerCaravansaryCharming CottageCheckmate SquareClassical Garden PatioColossusContestants' EstateDark DoorwayEastern Palace TowerElephant Fountain GateEmperor's EntranceFaery RingsFishing HutForest of FallGingerbread HouseGovernor's VillaGrand BridgeGreater RunestoneHanami BridgeHaunted HouseHippodrome CarceresHippodrome SphendoneKing StatueKioskLog CabinMaharaja's PalaceMemorial ChhatriMenagerieMill of FallMoon GateMoose MeadowOasisObelisk GardenOlympic TreasuryPagodaPillar of HeroesPiazza CafePiazza HomesPole HouseQueen StatueRenaissance MansionRenaissance VillaRoyal CascadeRoyal Marble GatewaySacred Sky WatchSeptember CottageShinto TempleShrine of AweShrine of InspirationShrine of KnowledgeSnow GlobeSpeaker's CornerStatue of HonorStranded BoatStraw HutSugar Baker's BoothSundial SpireThe Crow's NestThe KingThe Lord's ManorThe QueenThe ShipTholos of IdolsTimeless DojoToymaker's BoothTribal SquareWestern Palace TowerWinter SpireWinter TrainWorld's FairYggdrasilZen ZoneZiggurat
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Building Items FragmentsOne Up KitRenovation KitSelection KitShrink KitStore BuildingUpgrade Kit
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