Upgrade
Level
|
Resources
|
Time
|
Add Storage Capacity
|
Total Storage Capacity
|
1 | | 5 minutes | |
100
|
2 | | 2 minutes, 30 seconds | + 400 |
500
|
3 | | 1 hour | + 1000 |
1500
|
4 | | 1 day | + 1500 |
3000
|
5 | | 7 days | + 3000 |
6000
|
6 | | 7 days | + 6000 |
12000
|
7 | | 7 days | + 8000 |
20000
|
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