Drill Ground
Base reference costs and prerequisites. Supported through level 30; each row shows an explicit upgrade transition.
Plan this upgradeUpgrade costs
| From → To | Wood | Food | Coins | Base work |
|---|---|---|---|---|
| 1 → 2 | 270 | 90 | 0 | 2s |
| 2 → 3 | 610 | 200 | 0 | 6s |
| 3 → 4 | 1,200 | 410 | 0 | 1m 57s |
| 4 → 5 | 3,000 | 1,000 | 0 | 7m 2s |
| 5 → 6 | 11,000 | 3,600 | 0 | 21m 4s |
| 6 → 7 | 29,000 | 9,700 | 0 | 46m 48s |
| 7 → 8 | 73,000 | 24,000 | 0 | 1h 33m 36s |
| 8 → 9 | 290,000 | 97,000 | 0 | 2h 11m 3s |
| 9 → 10 | 580,000 | 190,000 | 0 | 3h 16m 34s |
| 10 → 11 | 870,000 | 290,000 | 0 | 4h 35m 12s |
| 11 → 12 | 1,300,000 | 440,000 | 0 | 8h 1m 35s |
| 12 → 13 | 2,000,000 | 660,000 | 0 | 13h 29m 3s |
| 13 → 14 | 3,000,000 | 980,000 | 0 | 20h 13m 34s |
| 14 → 15 | 4,400,000 | 1,500,000 | 0 | 1d 2h 17m 38s |
| 15 → 16 | 6,200,000 | 2,100,000 | 0 | 1d 10h 10m 56s |
| 16 → 17 | 8,100,000 | 2,700,000 | 0 | 1d 20h 26m 12s |
| 17 → 18 | 10,000,000 | 3,500,000 | 0 | 2d 9h 46m 4s |
| 18 → 19 | 14,000,000 | 4,500,000 | 0 | 3d 3h 5m 53s |
| 19 → 20 | 19,000,000 | 6,400,000 | 0 | 4d 1h 37m 38s |
| 20 → 21 | 27,000,000 | 8,900,000 | 0 | 5d 6h 54m 56s |
| 21 → 22 | 35,000,000 | 12,000,000 | 0 | 6d 20h 59m 24s |
| 22 → 23 | 45,000,000 | 15,000,000 | 0 | 8d 22h 29m 13s |
| 23 → 24 | 59,000,000 | 20,000,000 | 0 | 11d 14h 49m 59s |
| 24 → 25 | 76,000,000 | 25,000,000 | 0 | 15d 2h 28m 59s |
| 25 → 26 | 99,000,000 | 33,000,000 | 0 | 19d 15h 13m 40s |
| 26 → 27 | 130,000,000 | 43,000,000 | 0 | 25d 12h 35m 46s |
| 27 → 28 | 170,000,000 | 56,000,000 | 0 | 35d 17h 38m 4s |
| 28 → 29 | 220,000,000 | 73,000,000 | 0 | 50d 41m 17s |
| 29 → 30 | 280,000,000 | 94,000,000 | 0 | 70d 57m 48s |
Requirements by target level
Level 2
- Castle level 2
Level 3
- Castle level 3
Level 4
- Castle level 4
Level 5
- Castle level 5
Level 6
- Castle level 6
Level 7
- Castle level 7
Level 8
- Castle level 8
Level 9
- Castle level 9
Level 10
- Castle level 10
Level 11
- Castle level 11
Level 12
- Castle level 12
Level 13
- Castle level 13
Level 14
- Castle level 14
Level 15
- Castle level 15
Level 16
- Castle level 16
Level 17
- Castle level 17
Level 18
- Castle level 18
Level 19
- Castle level 19
Level 20
- Castle level 20
Level 21
- Castle level 21
Level 22
- Castle level 22
Level 23
- Castle level 23
Level 24
- Castle level 24
Level 25
- Castle level 25
Level 26
- Castle level 26
Level 27
- Castle level 27
Level 28
- Castle level 28
Level 29
- Castle level 29
Level 30
- Castle level 30
Reference building rows describe the current level, so row L is the cost from L to L+1. Placement from 0 to 1 is undocumented and is never counted as free.
Reference snapshot: 24 October 2026. Community table agreement does not mean every value was independently verified in-game. View sources and uncertainty.