Royal Spa

• Costs: 85,000 coins
• Castle Level Points: 250
• Profits: 2,150 coins per collection

• Costs: 130,000 coins
• Castle Level Points: 290
• Profits: 500 coins per collection

• Costs: 500,000 coins
• Castle Level Points: 450
• Profits: 3,550 coins per collection

You'll need to be at least Level 30 in the game, if you'd like to instantly be able to purchase these three buildings, so keep completing quests and helping your friends until you can eventually unlock and afford them all!