Overview
Coal Mining increases Coal Gathering Speed. It is available in 5 tiers (Coal Mining I, Coal Mining II, Coal Mining III, Coal Mining IV, Coal Mining V), each with multiple upgrade levels.
Research costs include 5 resources: Resource, Meat, Wood, Coal, and Iron. Prerequisites require a specific Research Center level and, for higher tiers, completion of previous tiers. Construction times are base times and do not account for Research Speed bonuses.
Coal Mining I
| Level |
Prerequisites |
Resource |
Meat |
Wood |
Coal |
Iron |
Time |
Bonus |
Power
|
| 1 |
Research Center 7 Coal Output I 1 |
10,000 |
10,000 |
2,000 |
500 |
600 |
00:01:34 |
Coal Gathering Speed: 16.00% |
2,000
|
| 2 |
Research Center 8 |
14,000 |
14,000 |
2,800 |
700 |
840 |
00:02:21 |
Coal Gathering Speed: 16.00% |
2,000
|
| 3 |
Research Center 9 |
30,000 |
30,000 |
6,000 |
1,500 |
1,800 |
00:06:18 |
Coal Gathering Speed: 21.50% |
2,687
|
Coal Mining II
| Level |
Prerequisites |
Resource |
Meat |
Wood |
Coal |
Iron |
Time |
Bonus |
Power
|
| 1 |
Research Center 12 Coal Output II 1 |
100,000 |
100,000 |
20,000 |
5,000 |
1,200 |
00:17:30 |
Coal Gathering Speed: 11.00% |
1,375
|
| 2 |
Research Center 13 |
140,000 |
140,000 |
28,000 |
7,000 |
1,600 |
00:26:15 |
Coal Gathering Speed: 11.00% |
1,375
|
| 3 |
Research Center 14 |
300,000 |
300,000 |
60,000 |
15,000 |
3,600 |
01:10:00 |
Coal Gathering Speed: 14.50% |
1,812
|
Coal Mining III
| Level |
Prerequisites |
Resource |
Meat |
Wood |
Coal |
Iron |
Time |
Bonus |
Power
|
| 1 |
Research Center 17 Coal Output III 1 |
320,000 |
320,000 |
64,000 |
16,000 |
3,600 |
01:10:00 |
Coal Gathering Speed: 13.50% |
1,687
|
| 2 |
Research Center 18 |
450,000 |
450,000 |
90,000 |
22,000 |
5,000 |
01:45:00 |
Coal Gathering Speed: 13.50% |
1,687
|
| 3 |
Research Center 19 |
970,000 |
970,000 |
190,000 |
48,000 |
10,000 |
04:40:00 |
Coal Gathering Speed: 18.00% |
2,250
|
Coal Mining IV
| Level |
Prerequisites |
Resource |
Meat |
Wood |
Coal |
Iron |
Time |
Bonus |
Power
|
| 1 |
Research Center 22 Iron Output IV 1 |
930,000 |
930,000 |
180,000 |
46,000 |
12,000 |
07:46:40 |
Coal Gathering Speed: 16.00% |
2,000
|
| 2 |
Research Center 23 |
1,300,000 |
1,300,000 |
260,000 |
65,000 |
16,000 |
11:40:00 |
Coal Gathering Speed: 16.00% |
2,000
|
| 3 |
Research Center 24 |
2,700,000 |
2,700,000 |
550,000 |
130,000 |
36,000 |
1d 07:06:40 |
Coal Gathering Speed: 21.50% |
2,687
|
Coal Mining V
| Level |
Prerequisites |
Resource |
Meat |
Wood |
Coal |
Iron |
Time |
Bonus |
Power
|
| 1 |
Research Center 27 Iron Output V 1 |
1,600,000 |
1,600,000 |
330,000 |
83,000 |
48,000 |
2d 00:36:40 |
Coal Gathering Speed: 16.00% |
2,000
|
| 2 |
Research Center 28 |
2,300,000 |
2,300,000 |
460,000 |
110,000 |
67,000 |
3d 00:55:00 |
Coal Gathering Speed: 16.00% |
2,000
|
| 3 |
Research Center 29 |
4,900,000 |
4,900,000 |
990,000 |
240,000 |
140,000 |
8d 02:26:40 |
Coal Gathering Speed: 21.50% |
2,687
|
See Also
