The Sandcastle is a special cultural building first given as a reward during the 2013 Summer Event. It can also be rewarded for not going online for a few days in a row, then it will be sent in a reminder email from Inno Games.

It requires a road connection.


Age Happiness Happy/Size
Bronze Age 290 32.2
Iron Age 440 48.9
Early Middle Ages 480 53.4
High Middle Ages 540 60.0
Late Middle Ages 600 66.7
Colonial Age 710 78.9
Industrial Age 800 88.9
Progressive Era 870 96.7
Modern Era 940 104.4
Postmodern Era 980 108.9
Contemporary Era 1,130 125.6
Tomorrow Era 1,380 153.3
Future Era 1,650 183.3
Arctic Future 1,920 213.3
Oceanic Future 2,200 ?
Special Buildings
Residential Buildings Athlete Living QuartersBlack TowerCaravansaryCheckmate SquareEastern Palace TowerElephant Fountain GateEmperor's Entrance Level 1 / Level 2Fishing HutGrand BridgeGingerbread HouseHaunted HouseKing StatueKioskLog CabinMaharaja's PalaceMemorial ChhatriMoose MeadowOasisOne-Story PagodaPillar of HeroesPole HouseQueen StatueRenaissance MansionRenaissance VillaRoyal CascadeRoyal Marble GatewaySacred Sky WatchShrine of AweShrine of InspirationShrine of KnowledgeSnow GlobeSpeaker's CornerStraw HutSugar Baker's BoothSundial SpireThe KingThe Lord's ManorThe QueenToymaker's BoothTribal SquareWestern Palace TowerZen Zone Level 1 / Level 2Ziggurat
Production Buildings Arena of VictorsAviaryBazaarBeach BarCider Mill / Blooming / Fruitful / BountifulConfectionary / Large / Huge / LegendaryFan ShopFoeberge ShopGondola Dock MarketLuauMad Scientist's LabMasquerade BallReindeer PaddockRosariumSanta's WorkshopSoccer FieldTerrace FarmWitch Doctor
Cultural Buildings Balloon SiteElephant FountainGrandstandGraveyard / Old / Ancient / Legendary / Monumental / NecropolisHaunted TowerMaypole / Mighty / MajesticPavilionSandcastleTigers' DenWinners' PlazaWinter GateWinter MarketWinter Pyramid
Decorations Award TrophyBandar PlaygroundBleachersBronze AwardCandlemaker's TentChhatri GardenDecorated BaobabFace of the AncientFestive TreeFoE CupForge Bowl TrophyGarden RuinsGate of the Sun GodGate Statue EastGate Statue WestGold AwardHalmbockJack O'Lantern ChapelMaharaja's Jungle PondMask StatueMementoMobilithNeighborhood CupNishikigoi Pond Level 1 / Level 2NutcrackerPalm TreeReindeer SleighSakura Rock Level 1 / Level 2ScarecrowSilver AwardSmörgåsbord FeastSphinxStone AwardSundialTiki TotemTinkerer's TentTitan Arum PlantTree of Love / Great / EternalVenice CanalVitruvian ManWell of WelcomeWisteria TopiaryZanni Mask Statue
Military Buildings Champion's RetreatColor Guard CampDrummer SchoolRogue Hideout
Other Buildings Arctic HarborFountain of YouthGong of Wisdom Level 1 / Level 2Hall of FameHedge MazeMadame Fortuna's TentMonasteryOceanic TerminalRitual FlameStraw Star TentVictory TowerWatchfireWishing Well