Minibosses

Spawn Rates

Minibosses have a small chance to appear whenever you perform a gathering action.

Source	Spawn Rate
Base rate (mine/chop/dig)	0.25% per action
Base rate (mcd)	0.6% per action
Clan Miniboss Beacon	+0.1% per beacon level
Donator pass stack	Up to +56% (additive with beacon)

With a maxed Miniboss beacon (level 100) you get +10% spawn rate. Combined with all three donator passes stacked (+56%), your effective rate can become very high when using mcd.

How the Fight Works

When a miniboss spawns, you are presented with a task: pick the correct tool from 3 buttons. You must select the right one to defeat the miniboss.

• The correct tool is shown among two incorrect options
• You have a limited time to respond
• Choosing wrong or timing out means the miniboss escapes

Rewards

Detail	Value
Reward per kill	1 Sponge
Sponge persistence	Carries over between prestiges
Usage	Sponges are used for various prestige-related upgrades

Sponges are one of the few currencies that persist through prestige, making miniboss farming a long-term investment.

Tip

Use 1mcd exclusively when farming minibosses. The 0.6% base rate for mcd is more than double the 0.25% rate for individual actions, and using 1mcd keeps the command fast so you can trigger more actions per hour.

Maximizing Spawns

To get the most miniboss encounters:

1. Level the Miniboss beacon as high as possible
2. Stack donator passes for up to +56% additional rate
3. Use 1mcd for the highest base rate
4. Reduce your cooldown (via Cooldown beacon) to fit more actions per hour
5. Play during events if any event bonuses affect spawn rates