レベル | 必要な銀貨 | アップグレードタイム | 利息 | 貯蔵量 |
1 | 213,000 | 5m | 1% | 50,000 |
2 | 1,962,000 | 1h | 2% | 100,000 |
3 | 7,944,000 | 2h | 3% | 200,000 |
4 | 16,446,000 | 12h | 4% | 350,000 |
5 | 29,787,000 | 1day | 5% | 550,000 |
6 | 73,146,000 | 3days | 6% | 800,000 |
7 | 195,465,000 | 7days | 7% | 1,250,000 |