The Greenhouse building is tied to Life. Each upgrade here will increase the Life of your Harriers and add power to your empire. Each upgrade requires a Coldsteel piece. Level 15 Maximum: 4,300 life added(outdated, level 15 is no longer max)
Requirements to Upgrade[]
| Level | Gold | Food | Lumber | Metal | Stone | Coldsteel piece | Time | Harrier life | Power (mostly calculated) |
| 1 | 2,000 | 250 | 1,200 | 500 | 1,500 | 1 Coldsteel Fragment | 2m 4s | 1900 | 50 |
| 2 | 4,000 | 600 | 2,600 | 1,300 | 3,500 | 1 Coldsteel Fragment | 12m 40s | 2100 | 100 |
| 3 | 8,000 | 1,200 | 5,200 | 2,600 | 7,000 | 1 Coldsteel Fragment | 25m 20s | 2300 | 200 |
| 4 | 16,000 | 2,400 | 10,400 | 5,200 | 14,000 | 1 Coldsteel Fragment | 50m 40s | 2400 | 400 |
| 5 | 32,000 | 4,800 | 20,800 | 10,400 | 28,000 | 1 Coldsteel Fragment | 1h 41m 20s | 2600 | 800 |
| 6 | 64,000 | 9,600 | 41,600 | 20,800 | 56,000 | 1 Coldsteel Fragment | 3h 22m 40s | 2900 | 1,600 |
| 7 | 128,000 | 19,200 | 83,200 | 41,600 | 112,000 | 1 Coldsteel Gem | 6h 45m 20s | 3200 | 3,200 |
| 8 | 256,000 | 38,400 | 166,400 | 83,200 | 224,000 | 1 Coldsteel Gem | 13h 30m 40s | 3500 | 6,400 |
| 9 | 512,000 | 76,800 | 332,800 | 166,400 | 448,000 | 1 Coldsteel Gem | 1d 3h 1m 20s | 3800 | 12,800 |
| 10 | 1,024,000 | 153,600 | 665,600 | 332,800 | 896,000 | 1 Coldsteel Gem | 2d 6h 2m 40s | 4100 | 25,600 |
| 11 | 1,536,000 | 230,400 | 998,400 | 499,200 | 1,344,000 | 1 Cooldsteel Core | 3d 9h 4m 0s | 4400 | 51,200 |
| 12 | 1,536,000 | 230,400 | 998,400 | 499,200 | 1,344,000 | 1 Cooldsteel Core | 3d 9h 4m 0s | 4800 | 102,400 |
| 13 | 1,536,000 | 230,400 | 998,400 | 499,200 | 1,344,000 | 1 Coldsteel Core | 3d 9h 4m 0s | 5200 | 204,800 |
| 14 | 1,536,000 | 230,400 | 998,400 | 499,200 | 1,344,000 | 1 Coldsteel Core | 3d 9h 4m 0s | 5600 | 409,600 |
| 15 | 1,536,000 | 230,400 | 998,400 | 499,200 | 1,344,000 | 1 Coldsteel Core | 3d 9h 4m 0s | 6000 | 819,200 |
| 16 | 1 Steelshard Flowstone | 3d 9h 4m 0s | 6100 | 1,638,400 | |||||
| 17 | 1 Steelshard Flowstone | 3d 9h 4m 0s | 6200 | 3,276,800 | |||||
| 18 | 1 Steelshard Flowstone | 3d 9h 4m 0s | 6300 | 6,553,600 | |||||
| 19 | 1 Steelshard Flowstone | 3d 9h 4m 0s | 6400 | 13,107,200 | |||||
| 20 | 1 Steelshard Flowstone | 3d 9h 4m 0s | 6500 | 26,214,400 | |||||
| 21 | 1,920,000 | 288,000 | 1,248,000 | 624,000 | 1,680,000 | 1 Steelshard Rosette | 3d 9h 4m 0s | 6625 | 52,428,800 |
| 22 | 1,920,000 | 288,000 | 1,248,000 | 624,000 | 1,680,000 | 1 Steelshard Rosette | 3d 9h 4m 0s | 6750 | 104,857,600 |
| 23 | 1,920,000 | 288,000 | 1,248,000 | 624,000 | 1,680,000 | 1 Steelshard Rosette | 3d 9h 4m 0s | 6875 | 209,715,200 |
| 24 | 1,920,000 | 288,000 | 1,248,000 | 624,000 | 1,680,000 | 1 Steelshard Rosette | 3d 9h 4m 0s | 7000 | 419,430,400 |
| 25 | 1,920,000 | 288,000 | 1,248,000 | 624,000 | 1,680,000 | 1 Steelshard Rosette | 3d 9h 4m 0s | 7125 | 838,860,800 |
| 26 | ??? | ??? | ??? | ??? | ??? | 1 Steelshard Pillar | ??? | ??? | ??? |
| 27 | ??? | ??? | ??? | ??? | ??? | 1 Steelshard Pillar | ??? | ??? | ??? |
| 28 | ??? | ??? | ??? | ??? | ??? | 1 Steelshard Pillar | ??? | ??? | ??? |
| 29 | ??? | ??? | ??? | ??? | ??? | 1 Steelshard Pillar | ??? | ??? | ??? |
| 30 | ??? | ??? | ??? | ??? | ??? | 1 Steelshard Pillar | ??? | ??? | ??? |
| Level | Gold | Food | Lumber | Metal | Stone | Coldsteel piece | Time | Harrier life | Power (mostly calculated) |
Steelshard Caverns Greenhouse level 0
Steelshard Caverns Greenhouse level 7
Steelshard Caverns Greenhouse level 10
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| Page last updated: 2024-04-19 03:57 (UTC) |
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