Chests
From Idle Clans wiki
Chests are a rare item drop from doing Skills and Combat.
Chests can be randomly found doing most tasks in the game, whether online or offline. The exact chance of finding chests greatly varies, but the higher level tasks you complete, the higher chance at finding a chest. Additionally Monsters are known to hoard chests, making combat a great and predictable way to farm chests.
Chest Drop Rates
When it comes to obtaining chests through Skills, the drop rate is a function dependent upon two variables - the base chance of a chest type to drop, and the level requirement of the current task. The base drop chances are as follows:
Common treasure chest: 0.015%
Rare treasure chest: 0.003%
Exceptional treasure chest: 0.0005%
The function to calculate the final chest drop rate is:
Chest Drop Chance = Base Chance * ((Task Level Requirement / 10) * 1.033)
Example: To calculate the odds of obtaining a common treasure chest from foraging 
Seaweed:
0.00015 * ((90 / 10) * 1.033) = 0.00139 = 0.139%
In other words, every task action has a 0.139% chance to obtain a Common treasure chest.
Drop Sources
| Source(s) |  Common treasure chest
|
 Rare treasure chest
|
 Exceptional treasure chest
|
|---|---|---|---|
| Monsters | ✅ (1) | ✅ (1) | ✅ (1) |
| Bosses | ❌ | ✅ (2-4) | ✅ (1-2) |
| Raids | ✅ (1-4) | ✅ (1-2) | ✅ (1) |
| Skills | ✅ (1) | ✅ (1) | ✅ (1) |
Clan Credit Rewards
| Player Status | Common treasure chest
|
Rare treasure chest
|
Exceptional treasure chest
|
|---|---|---|---|
| Non-Premium | 2 | 4 | 10 |
 Premium
|
2 | 5 | 12 |
