Seismology centre
| Upgrade costs L0 -> L1 | |||
|---|---|---|---|
| Product | Quantity | Market price | Total costs |
 Coins | 10 000 000 000 | 1 | 10 000 000 000 |
 Electronics | 100 000 | 68 590 | 6 859 020 000 |
 Gold | 50 000 | 62 121 | 3 106 050 000 |
 Batteries | 80 000 | 209 679 | 16 774 320 000 |
| 36 739 390 000 | |||