Summer Cooler
From IdleOn MMO Wiki
| 10% |  Beach Oyster |
| 67% |  Gem |
| 5.5% |  Coastiolyte Card |
| 3.5% |  Summer Spirit Card |
| 3% |  1 HR Time Candy |
| 1% |  2 HR Time Candy |
| 1.5% |  Summer Weapon Stone |
| 4.5% |  Summer Tool Upgrade Stone |
| 4% |  Summer Armor Stone |
 Summer Shell (1/50 for your first shell, much lower chances for any subsequent shells) |
| Source | Chance | Quantity |
|---|---|---|
| Beach Oyster | 1 in 10.0 | 1 |
| Gem | 1 in 1.49 | 1 |
| Coastiolyte Card | 1 in 18.2 | 1 |
| Summer Spirit Card | 1 in 28.6 | 1 |
| 1 HR Time Candy | 1 in 33.3 | 1 |
| 2 HR Time Candy | 1 in 100 | 1 |
| Summer Weapon Stone | 1 in 66.7 | 1 |
| Summer Tool Upgrade Stone | 1 in 22.2 | 1 |
| Summer Armor Stone | 1 in 25.0 | 1 |
| Additional Rules for the Hat Every 5 boxes | ||
| First 1000 Boxes | 1 in 4,000 | 1 |
| After 1000 boxes it uses a different formula that adjusts based on how many have been opened. | ||
| Best | 1 in 25.0 | - |
| Worst | 1 in 200 | - |
