First Personal Island Upgrade Cost

TierMultipurpose PlotsSmall Multipurpose PlotsSilver CostTotal Silver Cost
11020,00020,000
232500,000520,000
3621,125,0001,645,000
4921,312,5002,957,500
51221,500,0004,457,500
61622,000,0006,457,500

Personal Island Upgrade Cost (Additional Islands)

TierMultipurpose PlotsSmall Multipurpose PlotsSilver CostTotal Silver Cost
1101,000,0001,000,000
2322,500,0003,500,000
3624,000,0007,500,000
4925,000,00012,500,000
51226,000,00018,500,000
61628,000,00026,500,000

Guild Island Upgrade Cost

LevelBuilding PlotSmall Building PlotSilver CostTotal Silver Cost
1405,000,0005,000,000
2723,750,0008,750,000
31024,000,00012,750,000
41325,000,00017,750,000
51626,000,00023,750,000
61928,000,00031,750,000