Inner City Buildings
Coal Mine
The Coal Mine produces coal and is the 3rd Production Building you unlock. Its furniture includes a Sorting Station, Pulverizer, Changing Room, Pump, Shower Room, and Steam Engine.
- Category
- Inner City Buildings
- 30
Official table basis
| Level | Prerequisites | Build Cost | Construction Time | Building Power |
|---|---|---|---|---|
| 1 | Furnace Lv. 3 | 30 | 00:00:02 | 40 |
| 2 | Furnace Lv. 3 | 45 | 00:00:03 | 76 |
| 3 | Furnace Lv. 3 | 200 | 00:00:10 | 130 |
| 4 | Furnace Lv. 4 | 450 90 | 00:00:35 | 202 |
| 5 | Furnace Lv. 5 | 1.9k 380 | 00:01:10 | 310 |
| 6 | Furnace Lv. 6 | 4.8k 960 240 | 00:02:20 | 472 |
| 7 | Furnace Lv. 7 | 17k 3.4k 865 | 00:04:45 | 706 |
| 8 | Furnace Lv. 8 | 31k 6.3k 1.5k | 00:07:10 | 940 |
| 9 | Furnace Lv. 9 | 65k 13k 3.2k | 00:10:30 | 1,174 |
| 10 | Furnace Lv. 10 | 110k 23k 5.7k | 00:14:00 | 1,514 |
| 11 | Furnace Lv. 11 | 110k 110k 23k 5.9k | 00:18:00 | 1,854 |
| 12 | Furnace Lv. 12 | 150k 150k 30k 7.5k | 00:21:30 | 2,194 |
| 13 | Furnace Lv. 13 | 210k 210k 42k 10k | 00:26:00 | 2,768 |
| 14 | Furnace Lv. 14 | 280k 280k 56k 14k | 00:33:30 | 3,342 |
| 15 | Furnace Lv. 15 | 410k 410k 83k 20k | 00:43:00 | 3,916 |
| 16 | Furnace Lv. 16 | 530k 530k 100k 26k | 01:13:00 | 4,724 |
| 17 | Furnace Lv. 17 | 830k 830k 160k 41k | 01:27:30 | 5,532 |
| 18 | Furnace Lv. 18 | 1.1M 1.1M 220K 56K | 01:45:00 | 6,340 |
| 19 | Furnace Lv. 19 | 1.4M 1.4M 280K 70K | 02:38:00 | 7,488 |
| 20 | Furnace Lv. 20 | 1.9M 1.9M 300k 96k | 03:17:30 | 8,636 |
| 21 | Furnace Lv. 21 | 2.4M 2.4M 490K 120K | 04:16:30 | 9,784 |
| 22 | Furnace Lv. 22 | 3.2M 3.2M 640K 160K | 06:25:00 | 11,506 |
| 23 | Furnace Lv. 23 | 4M 4M 800K 200K | 08:59:00 | 13,228 |
| 24 | Furnace Lv. 24 | 5.4M 5.4M 1M 270K | 12:34:30 | 14,950 |
| 25 | Furnace Lv. 25 | 7.3M 7.3M 1.4M 360K | 17:36:30 | 16,672 |
| 26 | Furnace Lv. 26 | 9.4M 9.4M 1.8M 470K | 20:15:00 | 19,202 |
| 27 | Furnace Lv. 27 | 13M 13M 2.6M 670K | 1d 00:18:00 | 21,732 |
| 28 | Furnace Lv. 28 | 17M 17M 3.5M 890K | 1d 03:57:00 | 24,262 |
| 29 | Furnace Lv. 29 | 22M 22M 4.4M 1.1M | 1d 08:08:00 | 26,792 |
| 30 | Furnace Lv. 30 | 27M 27M 5.4M 1.3M | 1d 14:34:00 | 30,470 |