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Idle Clans Bosses and Boss Keys

The official game data lists 9 combat bosses, all in the Valley of Gods. Every one needs an item to fight it, listed in the table below. Kronos has the most health by far at 4,000. The table shows each boss's stats, key and the gold its loot table is worth per roll at current market prices.

How we calculate this

Stats, keys and loot weights come from the official Idle Clans game data (saved 2026-10-02, game build 1.6600). Drop share is a row's weight divided by the total weight of its table. The data does not say how many loot rolls one kill makes, so "loot value per roll" is the share-weighted average of one roll: share x average amount x unit price, summed. Unit prices are the player market daily average (market data ); items with no market price use their in-game base value, and untradeable items such as keys count at that base value. Kill times, gear and level advice are not in the data, so this page does not give them.

All 9 Idle Clans bosses

Click a column header to sort. Attack style is the style the data says the boss hits with.

BossHealthWeaknessAttacks with Attack speedKey requiredLoot value / rollLoot rows
Griffin 440 Crush Melee 3s Griffin Key 107,724 27
Devil 390 Pound Melee 3s Devil Key 107,644 27
Hades 350 Stab Magic 3s Hades Key 109,386 26
Zeus 380 Archery Magic 3s Zeus Key 109,347 26
Medusa 425 Slash Archery 2.5s Medusa Key 106,487 27
Chimera 500 Magic Melee 3s Chimera Key 108,865 27
Sobek 600 None listed Archery 3s Sobek Key 932,349 6
Kronos 4,000 Random Stab 4.5s Kronos Scroll 496,179 10
Mesines 1,000 Archery Slash 3s Otherworldly Key 4,569,572 21

Where Idle Clans boss keys come from

Every reward table in the game data that contains each key. Percentages are drop shares (weight / table total), not per-kill chances.

KeyBossSources in the game data
Griffin Key Griffin dropped by Ghost (0.56%), Hydra (0.52%), Black dragon (0.34%), Gorilla (0.12%); a possible reward from 10 combat quests; the raid level 1 reward table (5%).
Devil Key Devil dropped by Necromancer (0.52%), Cerberus (0.34%), Red dragon (0.23%), Troll (0.22%); a possible reward from 10 combat quests; the raid level 1 reward table (5%).
Hades Key Hades dropped by Possessed bear (0.57%), Mutated dragon (0.52%), Dark wizard (0.49%), Green dragon (0.11%); a possible reward from 10 combat quests; the raid level 1 reward table (5%).
Zeus Key Zeus dropped by Zombie (0.58%), Minotaur (0.52%), Werewolf (0.35%), Druid (0.11%); a possible reward from 10 combat quests; the raid level 1 reward table (5%).
Medusa Key Medusa dropped by Centaur (0.52%), Vampire (0.35%), Witch (0.33%), Wandering warrior (0.12%); a possible reward from 10 combat quests; the raid level 1 reward table (5%).
Chimera Key Chimera dropped by Manticore (0.52%), Mad wizard (0.35%), Demon (0.31%), Giant (0.12%); a possible reward from 10 combat quests; the raid level 1 reward table (5%).
Sobek Key Sobek a possible reward from 1 combat quest (kill Sobek); Plundering: Ancient Tribe (0.0501%).
Kronos Scroll Kronos a possible reward from 8 combat quests.
Otherworldly Key Mesines a possible reward from 1 combat quest (kill Mesines); Exterminating supply crates (5%).

Boss page pieces: Devil drops the Boss Page Piece Burning; Zeus drops the Boss Page Piece Godly; Griffin drops the Boss Page Piece Mountain; Chimera drops the Boss Page Piece Mutated; Medusa drops the Boss Page Piece Stone; Hades drops the Boss Page Piece Underworld. The game data does not list a recipe or upgrade that uses them.

Frequently asked questions

How many bosses are in Idle Clans?

The official game data lists 9 combat bosses, all in the Valley of Gods: Griffin, Devil, Hades, Zeus, Medusa, Chimera, Sobek, Kronos, Mesines. Each one needs an item to fight it.

Which key does each Idle Clans boss need?

Griffin: Griffin Key; Devil: Devil Key; Hades: Hades Key; Zeus: Zeus Key; Medusa: Medusa Key; Chimera: Chimera Key; Sobek: Sobek Key; Kronos: Kronos Scroll; Mesines: Otherworldly Key.

Where do Idle Clans boss keys drop?

Griffin Key: dropped by Ghost (0.56%), Hydra (0.52%), Black dragon (0.34%), Gorilla (0.12%); a possible reward from 10 combat quests; the raid level 1 reward table (5%). Devil Key: dropped by Necromancer (0.52%), Cerberus (0.34%), Red dragon (0.23%), Troll (0.22%); a possible reward from 10 combat quests; the raid level 1 reward table (5%). Hades Key: dropped by Possessed bear (0.57%), Mutated dragon (0.52%), Dark wizard (0.49%), Green dragon (0.11%); a possible reward from 10 combat quests; the raid level 1 reward table (5%). Zeus Key: dropped by Zombie (0.58%), Minotaur (0.52%), Werewolf (0.35%), Druid (0.11%); a possible reward from 10 combat quests; the raid level 1 reward table (5%). Medusa Key: dropped by Centaur (0.52%), Vampire (0.35%), Witch (0.33%), Wandering warrior (0.12%); a possible reward from 10 combat quests; the raid level 1 reward table (5%). Chimera Key: dropped by Manticore (0.52%), Mad wizard (0.35%), Demon (0.31%), Giant (0.12%); a possible reward from 10 combat quests; the raid level 1 reward table (5%).

Where do you get the Sobek Key, Kronos Scroll and Otherworldly Key?

Sobek Key: no monster drops it; a possible reward from 1 combat quest (kill Sobek); Plundering: Ancient Tribe (0.0501%). Kronos Scroll: no monster drops it; a possible reward from 8 combat quests. Otherworldly Key: no monster drops it; a possible reward from 1 combat quest (kill Mesines); Exterminating supply crates (5%).

Which Idle Clans boss has the most valuable loot?

At current market prices, Mesines: about 4,569,572 gold expected per loot roll. That figure weights every loot row by its share of the drop table; the data does not say how many rolls a kill makes.

Are there items called Mountain Key or Stone Key?

Not in the current game data. Griffin drops a Boss Page Piece Mountain and Medusa a Boss Page Piece Stone; the six original bosses each drop one page piece. The data does not list a recipe or upgrade that uses them.

Sources: official Idle Clans game data (saved 2026-10-02) and the player market Updated . Work out your own time to kill with the combat calculator and compare weapons on the best weapon page.