Military Buildings
Furnace
The Furnace is your city's core building and the first structure you unlock. Its level determines the maximum level of other buildings and when new buildings become available. Upgrading it increases heat output and your power. The Furnace also keeps Survivors warm during the day, at night, and during snowstorms. Adequate heat helps prevent illness; sick Survivors cannot work until they recover.
- Category
- Military Buildings
- 30
Official table basis
| Level | Prerequisites | Build Cost | Construction Time | Building Power |
|---|---|---|---|---|
| 1 | — | — | - | 2,000 |
| 2 | Sawmill Lv. 1 | 180 | 00:00:06 | 3,800 |
| 3 | Shelter 1 Lv. 2 | 805 | 00:01:00 | 6,500 |
| 4 | Coal Mine Lv. 3 | 1.8k 360 | 00:03:00 | 10,100 |
| 5 | Hero Hall Shelter 3 Lv. 3 | 7.6k 1.5k | 00:10:00 | 15,500 |
| 6 | Iron Mine Lv. 5 | 19k 3.8k 960 | 00:30:00 | 23,600 |
| 7 | Hunter's Hut Lv. 6 | 69k 13k 3.4k | 01:00:00 | 35,300 |
| 8 | Infantry Camp Lv. 7 | 120k 25k 6.3k | 02:30:00 | 47,000 |
| 9 | Embassy Lv. 8 Infirmary Lv. 1 | 260k 52k 13k | 04:30:00 | 58,700 |
| 10 | Marksman Camp Lv. 9 Research Center | 460k 92k 23k | 06:00:00 | 75,700 |
| 11 | Embassy Lv. 10 Lancer Camp Lv. 10 | 1.3M 1.3M 260k 65k | 07:30:00 | 92,700 |
| 12 | Embassy Lv. 11 Command Center Lv. 1 | 1.6M 1.6M 330k 84k | 09:00:00 | 109,700 |
| 13 | Embassy Lv. 12 Infantry Camp Lv. 12 | 2.3M 2.3M 470k 110k | 11:00:00 | 138,400 |
| 14 | Embassy Lv. 13 Marksman Camp Lv. 13 | 3.1M 3.1M 630K 150K | 14:00:00 | 167,100 |
| 15 | Embassy Lv. 14 Lancer Camp Lv. 14 | 4.6M 4.6M 930K 230K | 18:00:00 | 195,800 |
| 16 | Embassy Lv. 15 Research Center Lv. 15 | 5.9M 5.9M 1.1M 290K | 1d 06:28:00 | 236,200 |
| 17 | Embassy Lv. 16 Infantry Camp Lv. 16 | 9.3M 9.3M 1.8M 460K | 1d 12:34:00 | 276,600 |
| 18 | Embassy Lv. 17 Marksman Camp Lv. 17 | 12M 12M 2.5M 620K | 1d 19:53:00 | 317,000 |
| 19 | Embassy Lv. 18 Lancer Camp Lv. 18 | 15M 15M 3.1M 780k | 2d 17:50:00 | 374,400 |
| 20 | Embassy Lv. 19, Research Center Lv. 19 | 21M 21M 4.3M 1M | 3d 10:18:00 | 431,800 |
| 21 | Embassy Lv. 20 Infantry Camp Lv. 20 | 27M 27M 5.4M 1.3M | 4d 10:59:00 | 489,200 |
| 22 | Embassy Lv. 21 Marksman Camp Lv. 21 | 36M 36M 7.2M 1.8M | 6d 16:29:00 | 575,300 |
| 23 | Embassy Lv. 22 Lancer Camp Lv. 22 | 44M 44M 8.9M 2.2M | 9d 08:40:00 | 661,400 |
| 24 | Embassy Lv. 23 Research Center Lv. 23 | 60M 60M 12M 3M | 13d 02:33:00 | 747,500 |
| 25 | Embassy Lv. 24 Infantry Camp Lv. 24 | 81M 81M 16M 4M | 18d 08:22:00 | 833,600 |
| 26 | Embassy Lv. 25 Marksman Camp Lv. 25 | 100M 100M 21M 5.2M | 21d 02:26:00 | 960,100 |
| 27 | Embassy Lv. 26 Lancer Camp Lv. 26 | 140M 140M 24M 7.4M | 25d 07:43:00 | 1,086,600 |
| 28 | Embassy Lv. 27 Research Center Lv. 27 | 190M 190M 39M 9.9M | 29d 02:52:00 | 1,213,100 |
| 29 | Embassy Lv. 28 Infantry Camp Lv. 28 | 240M 240M 49M 12M | 33d 11:42:00 | 1,339,600 |
| 30 | Embassy Lv. 29 Marksman Camp Lv. 29 | 300M 300M 60M 15M | 40d 04:27:00 | 1,523,500 |