1. ⚡ Turn on both power switches
Blood has two power switches.
Activate the first on the west side of the island, then make your way through Alcatraz and activate the second in Building 64 near the Docks.
Activating the power also gets the Warden involved, which is important for obtaining his key.
2. 🛡️ Build the Spectral Shield
You need three components, including the Warden’s Key, which is dropped by the Warden.
Build the Spectral Shield at a workbench.
This thing is absolutely essential because its Spectral Vision lets you see hidden objects and its Spirit Blast activates quest objects.
3. 🔥 Unlock Pack-a-Punch
Head onto the Roof.
Use a charged Spirit Blast from the Spectral Shield on the voltmeter where the plane used to sit in Mob of the Dead.
This releases the spirits hiding the Pack-a-Punch machine and allows it to appear.
4. 🐺 Get Hell’s Retriever
Find the three Cerberus heads around Alcatraz and feed each one zombie souls until it disappears.
Once all three are finished, travel through the underground route and collect:
🔥 HELL’S RETRIEVER
You’ll need it for several main-quest interactions.
5. 🥄 Get the Spoon
Go to the Warden’s Office and use Spectral Vision to reveal a hidden three-digit code.
Remember it.
Go down into the Citadel Tunnels, Spirit Blast the number pad and enter your code.
This causes the elevator mechanism to drop.
Head to the Docks, Spirit Blast the crane’s electrical box and then use Hell’s Retriever on the raised skeleton/net.
The Spoon becomes obtainable.
6. 🔫 Prepare your equipment
Before getting too deep into the quest, it’s worth obtaining the Blundergat and upgrading it to the Magmagat. The Blundergat isn’t strictly required for the main quest, but the Magmagat is extremely useful for the difficult challenge sections.
You’ll also need Monkey Bombs for an upcoming Warden interaction.
7. 🔢 Enter 666
Now we’re getting into the main quest.
Eventually you’ll be able to enter:
6 — 6 — 6
on the Citadel Tunnels number pad.
This causes the Warden to appear.
Take him upstairs into the Warden’s House.
There’s a scratched/marked wall upstairs. Use the required melee interaction on it, then throw a Monkey Bomb beside the wall.
Bait the Warden into using his EMP slam near it.
💥 BOOM.
The wall breaks open, revealing the Warden’s Ritual Chamber.
8. 🔴 Get the red stone
Inside you’ll discover the Warden’s corpse strapped into a chair.
Interact with the room and collect the red stone.
Take it all the way back to Richtofen’s Laboratory at spawn.
Place the stone onto the large map.
Now interact with the:
📖 KRONORIUM
And immediately…
🐦 A spectral bird steals it.
Of course it does. 😂
9. 🐦 Find the spectral bird THREE times
The bird can spawn in many locations around Alcatraz.
Listen carefully for its sound.
Pull out the Spectral Shield and use Spectral Vision to see it.
When you find it:
Spirit Blast it.
It disappears.
Advance the round and find it again.
Repeat until you’ve successfully blasted it three times.
10. 🐦 Fourth bird + 872
The fourth bird works differently.
You’ll hear it, but normally won’t be able to retrieve the Kronorium.
Go to the Citadel Tunnels number pad and enter:
8 — 7 — 2
This spawns a Zombie Blood power-up.
Grab it.
Return to the fourth bird and use Hell’s Retriever on it.
📖 The Kronorium drops!
Pick it up.
11. 📖 Return the Kronorium
Return to the Warden’s secret ritual chamber.
Place the Kronorium onto the Warden.
Look at its pages using Spectral Vision.
You’ll see a randomized:
🔢 THREE-DIGIT NUMBER
Write it down.
Return to the Citadel number pad and enter it.
The lighthouse will point toward one of the challenge locations.
Find the spectral portal there and Spirit Blast it.
Now comes the infamous part.
😈 THE FIVE CHALLENGES
These can occur in a randomized order. After completing one, return to the Kronorium, obtain another code and repeat until you’ve finished all five.
⚓ Challenge — Docks
This is the Morse-code challenge.
You’ll need to interpret the spectral clues and input the corresponding Morse sequence into the machine.
Once successful, a ghost appears.
Use the Spectral Shield to reveal him and complete the escort portion of the challenge.
Finish it to obtain the quest orb.
⚡ Challenge — Power House
Welcome to:
SIMON SAYS.
Activate the challenge and pay attention to the electrical sequence.
Memorize it and reproduce it correctly.
Continue through the required sequences until the Power House challenge finishes.
👻 Challenge — Michigan Avenue
A spectral prisoner appears.
Your job is essentially to escort/protect the ghost as it moves through Alcatraz.
Keep enemies from interrupting the sequence until the ghost reaches its destination.
👻 Challenge — New Industries
Another ghost appears here, but this time your Spectral Shield becomes particularly important.
Use its spectral abilities to complete the ghost-draining sequence while controlling the zombies around you.
Finish the objective and collect the resulting orb.
🪕 Challenge — Showers
And now for one of the strangest sentences in our entire Zombies marathon:
Protect the ghost playing a banjo. 😂
Complete the banjo sequence while surviving the enemies attacking you.
When you’ve successfully finished the entire event, collect its orb.
12. 🔴 Finish all five trials
Once you’ve completed:
⚓ Docks
⚡ Power House
👻 Michigan Avenue
👻 New Industries
🪕 Showers
you’ll have completed the Kronorium trials.
Return to the Warden’s Ritual Chamber and complete the Summoning Key interaction.
13. ⛓️ The prison sequence
Things go very wrong.
Your characters are locked inside the cells.
The spectral bird eventually frees you.
Recover your equipment from the bag and follow the bird through the prison.
You’ll witness the spirits from Mob of the Dead intervene against the Warden.
Afterward, collect the newly dropped orb and return it to Richtofen’s Laboratory.
14. 🚪 Open the final doorway
Placing the final orb opens a previously inaccessible doorway in Richtofen’s Laboratory.
Head through.
In co-op, get everyone onto the appropriate pads.
You’re about to enter the final encounter.
⚠️ BOSS FIGHT
Before going in, I’d recommend being fully set up with your best upgraded equipment, a fresh Spectral Shield, full perks and plenty of ammo.
Then enter.
👹 15. THE WARDEN
The arena begins filling with enemies.
Survive until Wardens begin appearing.
After enough progress, red circles appear on the ground.
Stand inside the appropriate circle.
You’ll see glowing:
🔴 RED ORBS
Destroy the orbs while surviving the enemies.
Afterward, use the Spectral Shield’s Spirit Blast on the required spectral target above the central mechanism.
Repeat the boss sequence as required.
16. 🩸 The Dark Mechanism
Eventually the truth becomes clear.
The Warden’s plan centers around Richtofen and the Dark Mechanism.
Richtofen realizes what he has to do.
The sequence progresses until another Richtofen emerges—the version who survived the events of the Great War.
🧟 GREAT WAR RICHTOFEN
He enters the arena and helps bring the Warden’s plan to an end.
🎬 THE ENDING
The Warden is defeated.
But this isn’t a happy victory for Primis Richtofen.
His blood was required to break the mechanism maintaining the cycle. The other Primis characters leave Alcatraz with Great War Richtofen, while the Richtofen we’ve been following realizes he isn’t going with them.
The portals open.
Alcatraz begins fading away.
And the cycle that started back in Mob of the Dead is finally broken.