Core Building

Iron Warehouse

Protects your iron from being stolen. Higher levels increase the amount of iron that can be protected.

Unlock

Unlock information unavailable.

Level Scope

Levels 1-35 upgrade costs + build times.

Upgrade Notes

Base costs shown below. Use our building calculator for costs with your bonuses applied , or set your resource reduction:

Advanced Level Requirements (31-35)

Levels 31-35 require the "Age of Oil" event to have started (available after Season 2) and finishing the "Base Expansion" research in the Oil technology tree. This introduces oil as a new resource and unlocks these higher building levels in Last War: Survival.

Upgrade Costs and Requirements

Level	Food	Gold	Iron	Time
1	15	0	5	00:00:04
2	230	0	75	00:00:12
3	1.00k	0	340	00:00:47
4	2.50k	0	840	00:01:57
5	20.00k	0	6.80k	00:11:42
6	91.00k	0	30.00k	00:35:06
7	180.00k	0	61.00k	01:10:12
8	290.00k	0	97.00k	02:20:24
9	470.00k	150.00k	160.00k	03:16:34
10	560.00k	180.00k	190.00k	04:15:32
11	1.33M	450.00k	470.00k	05:32:12
12	2.32M	760.00k	790.00k	07:11:51
13	2.53M	840.00k	870.00k	09:21:24
14	3.68M	1.16M	1.16M	12:09:49
15	5.08M	1.59M	1.69M	17:01:45
16	9.09M	2.89M	2.99M	23:50:27
17	11.98M	3.74M	3.96M	1d 09:22:37
18	20.96M	6.52M	6.84M	1d 22:43:40
19	24.92M	7.91M	8.24M	2d 17:25:07
20	44.92M	13.90M	14.97M	3d 19:35:10
21	63.00M	20.00M	21.00M	4d 23:03:43
22	81.99M	25.96M	26.90M	6d 10:46:49
23	100.00M	32.98M	33.92M	8d 09:12:52
24	129.94M	40.94M	42.92M	11d 17:42:01
25	220.00M	68.89M	71.93M	16d 10:22:49
26	300.00M	96.96M	100.00M	23d 01:47:56
27	389.94M	129.94M	129.94M	32d 05:25:47
28	550.00M	180.00M	180.00M	45d 02:10:45
29	769.88M	250.00M	260.00M	58d 14:49:58
30	1.10G	350.00M	360.00M	76d 05:39:38

Source

Cpt Hedgehog building guide for iron-warehouse