Black Ops 6 Zombies Rat King Easter Egg: Cheese and All 10 Rat Locations

The Rat King Easter Egg on Citadelle des Morts has three parts: take the cheese wheel from the Town Square shop, approach all 10 rats while prone to send them to the Oubliette Room, then place the cheese on the plate beside them. Feeding the rats gives variable loot; gathering all 10 also earns a cosmetic crown with no gameplay bonus.

How to start the Rat King Easter Egg

1. Go to Town Square. Find the cheese shop near the stairs leading toward the Tavern Cellar.
2. Break the display window. Interact with a wheel of cheese inside to pick it up.

All 10 Rat King locations

At each spot, go prone near the hiding place to send the rat toward the Oubliette Room. Use these landmarks to check the whole route:

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1. Town Square: Beneath a flower pot.
2. Village Ascent: Beneath the car at the blockade.
3. Nature Path: Beside a zombie spawn.
4. Village Ramparts: Beneath the stairs leading to the Lion Cannon.
5. Entrance Hall: Beneath a wooden chair before the Dining Hall.
6. Dining Hall: Beneath a wooden pallet to the left of the Stag Knight statue.
7. Undercroft: Beside the zombie spawn to the right of the Mystery Box location.
8. Dungeon: In the jail cell to the left of the KSV wall buy.
9. Alchemical Lab: Behind the elemental slab, beneath a table.
10. Sitting Rooms: Beneath the table in the corner to the left of Stamin-Up.

How to claim the reward

After gathering the rats, enter the Oubliette Room and place the cheese wheel on the plate beside them. This triggers the feeding reward. The loot is variable: possible drops include Perks and Aetherium Crystals, as well as ammunition modifications, equipment, or weapons; none of these is guaranteed.

What the crown does

Gathering all 10 rats is the route to the Rat King crown. It is a cosmetic reward, not a gameplay upgrade, and the available guide describes it as cosmetic rather than a permanent account unlock.

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