The Depot helps the protect resources in your city from being plundered.
The higher level your Depot, the more resources it can protect. depot
level oil protection food protection steel protection mine protection battle power
1 200,000 200000 40000 20000 5
2 210,000 210000 42000 21000 15
3 221,000 221000 46400 22100 29
4 233000 233000 46600 23300 56
5 246000 246000 49200 24600 102
6 260000 260000 52000 26000 177
7 275000 275000 55000 27500 291
8 291000 291000 58200 29100 453
9 308000 308000 61600 30800 676
10 326000 326000 65200 32600 970
11 345000 345000 69000 34500 1349
12 365000 365000 73000 36500 1827
13 386000 386000 77200 38600 2417
14 408000 408000 81600 40800 3136
15 431000 431000 86200 43100 3998
16 455000 455000 91000 45500 5021
17 480000 480000 96000 48000 6223
18 506000 506000 101200 50600 7621
19 533000 533000 106600 53300 9236
20 561000 561000 112200 56100 11086
21 590000 590000 118000 59000 13193
22 620000 620000 124000 62000 15579
23 651000 651000 130200 65100 18265
24 683000 683000 136600 68300 21276
25 716000 716000 143200 71600 24634
26 750000 750000 150000 75000 28365
27 785000 785000 157000 78500 32495
28 821000 821000 164200 82100 37049
29 858000 858000 171600 85800 42056
30 896000 896000 179200 89600 47542
Age of Z - Depot Overview