A Royal Building is a building in Castleville that gives you more Castle Level.
| Maiden's Tower | 80 Castle
550 Coins per 8 Hours |
3 | 1,500 | 10 Wood Log | 15 Stones | 3 | ||
| Barracks | 110 Castle
750 Coins per 12 Hours |
6 | 4,500 | 15 Wood Log | 20 Stones | 4 | ||
| Guard Tower | 90 Castle
550 Coins |
7 | 3,000 | 15 Wood Log | 5 Stone Block | 3 Wanted Poster
(Friend Request) |
||
| Vault | 150 Castle
1050 Coins per 18 Hours |
9 | 15,000 | 5 Wood Clubs | 4 Gold Bricks | 5 Stone Blocks | 5 | |
| Throne Room | 190 Castle
1650 Coins per 30 Hours |
12 | 50,000 | 4 Stone Blocks | 7 Gold Bricks | 5 Cotton Cloth | 6 | |
| Library | 220 Castle
1800 Coins per 36 Hours |
15 | 75,000 | 5 Stone Block | 8 Gold Brick | 2 Candle | 7 | |
| Castle Dungeon | 260 Castle
2250 Coins |
18 | 100,000 | 6 Stone Block | 11 Gold Brick | 3 Iron Bar | 8 | |
| Wizard's Keep | 300 Castle
3000 Coins |
21 | 150,000 | 8 Stone Block | 13 Gold Brick | 10 Down Feather | 2 Cog | 9 |
| Opera House | 340 Castle
3150 Coins |
24 | 200,000 | 10 Stone Block | 18 Gold Brick | 5 Candle | 10 | |
| The Cathedral | 390 Castle
3250 Coins |
27 | 300,000 | 12 Stone Block | 21 Gold Brick | 1 Stained Glass | 1 Parchment | 11 |
| Observatory | 450 Castle
3550Coins |
30 | 500,000 | 15 Stone Block | 22 Gold Brick | 10 Ropes | 1 Angle Finder | 12 |