THE FINAL REICH — DARK REUNION
By Caleb Irvin / September 21, 2026 / No Comments
Hardcore Main Quest / Save Klaus
Before starting the Hardcore-only steps, complete the Casual quest through the Lightning Rod defenses, build the normal Tesla Gun, and continue the Hands of God objectives—but do not trigger the normal ending at the Hilt. For Dark Reunion, you also need all four Tesla variants in the same match.
So our shopping list from Straub is:
⚡ Midnight
⚡ Reaper
⚡ Bloodthirst
⚡ Hurricane
⚔️ Red Talon
💿 Hidden Record
💎 Rabenherz
Perfectly normal Saturday afternoon.
STRAUB, STOP ADDING STEPS.
⚡ PART 1 — THE FOUR TESLA VARIANTS
All four upgrades follow a similar overall structure: uncover an Überschnalle battery, charge it using a special condition, finish the Lightning Rod portion of the Main Quest, place the battery into its appropriate upgrade station and complete the defense to obtain the Tesla component.
And yes:
YOU NEED ALL FOUR IN ONE GAME.
Let’s start with the easiest.
🟢 STEP 1 — MIDNIGHT
Take a Brenner Head to the Courtyard.
Near the stairs is a statue.
Use the Brenner Head’s special light on the statue to reveal the battery.
Knock the battery down with your Tesla Gun.
Pick it up and place it into its nearby charging holder.
Now comes the weird part.
🔥 STEP 2 — CHARGE MIDNIGHT
Use the Courtyard S-Mine trap while enemies are near the battery.
The trap eliminations supply energy to it.
You’ll need multiple groups, so don’t assume one activation is enough.
Once sufficiently charged:
🟢 MIDNIGHT BATTERY READY.
After you’ve completed the Lightning Rod defenses, take it through its remaining forge/defense step to obtain the Midnight component and assemble the variant at the Weapon Forge.
⚡ MIDNIGHT COMPLETE.
One down.
🟢⬜⬜⬜
🟣 STEP 3 — REAPER
This one requires a:
👹 WÜSTLING.
Go into the Sewers and find the special wall compartment.
Get a Wüstling to charge into the wall.
Its charge smashes open the compartment and reveals the Reaper battery.
Me: Could we have used a key?
Straub: Wüstling.
Me: Could we have used a crowbar?
Straub: Wüstling.
Fine.
🟣 STEP 4 — CHARGE REAPER
Place the battery into its holder near the Sewer trap.
This battery requires energy involving Bomber enemies and the Saw Trap, rather than ordinary eliminations. Use the trap to supply the required Bomber energy until the battery finishes charging.
Once charged, complete its post-Lightning-Rod forge defense and collect the component.
Return to the Weapon Forge.
⚡ REAPER COMPLETE.
🟢🟣⬜⬜
🔴 STEP 5 — BLOODTHIRST
Oh boy.
💡 THE STREETLIGHT PUZZLE.
Outside near Riverside/Courtyard is a streetlamp that reacts to the Tesla Gun.
Hit it with the Tesla Gun until you see:
🟢 GREEN STATIC.
Now switch to a regular ranged weapon in-game and hit the lit bulb.
Another streetlight begins sparkling green.
Hit that one.
Another activates.
You’re essentially following:
💡 → 💡 → 💡 → 💡
a trail of green electrical sparks around the map. An audio cue confirms each correct light.
Keep following the trail until it leads you to the Morgue.
There you’ll uncover:
🔴 BLOODTHIRST BATTERY.
🪰 STEP 6 — CHARGE BLOODTHIRST
Place the battery into its holder.
This time you need:
PESTS.
Defeat Pests near the battery until it has absorbed enough energy. The requirement is substantial, so starting Bloodthirst early prevents you from having to burn through a bunch of later rounds waiting for Pest waves.
Once charged, finish its upgrade-station defense after the Lightning Rod step.
Collect the component.
Weapon Forge.
⚡ BLOODTHIRST COMPLETE.
🟢🟣🔴⬜
Three down.
🌪️ STEP 7 — HURRICANE
Go into the Laboratory.
Find the electrical panel associated with the Hurricane quest.
For this one you need a:
💣 BOMBER.
Get the Bomber’s explosion to break/open the panel.
Inside:
🌪️ HURRICANE BATTERY.
Remember when our biggest problem was Willard Wyler making us do chemistry?
I MISS THE CHEMISTRY.
🌪️ STEP 8 — CHARGE HURRICANE
Place the battery into its holder in the Laboratory’s electric-trap area.
This one requires Wüstlings.
Use the Laboratory electric trap while the required Wüstlings are in its area to supply their energy to the battery.
Once sufficiently charged, finish the corresponding forge defense and retrieve the part.
Return to the Weapon Forge.
Build:
⚡ HURRICANE.
And now:
🟢🟣🔴🌪️
ALL FOUR TESLA VARIANTS COMPLETE.
That alone also fulfills the requirement associated with Dark Arts.
But Dark Reunion?
HAHA.
We’re nowhere near finished.
⚔️ PART 2 — THE RED TALON
After you’ve completed the Lightning Rod defenses, return to the original power switches in:
🧪 Laboratory
and
⚰️ Morgue.
Activate both again.
A third switch becomes accessible in the Command Room near the Salt Mine entrance.
Activate it.
⚡ COILS APPEAR.
🔦 STEP 9 — PREPARE A BRENNER HEAD
Before touching those coils:
GET A BRENNER HEAD READY.
You are about to start a timed sequence.
Shoot the newly revealed coils with a Tesla Gun.
💡 THE LIGHTS GO OUT.
Now MOVE.
You have limited time before the lights return.
🔐 STEP 10 — LABORATORY SAFE
Run toward the Laboratory.
A previously hidden wall compartment is open near the entrance.
Inside is:
🔐 A SAFE.
Use the Brenner Head to scan it.
The safe contains five rotating dials.
Rotate each dial until the Brenner Head reveals the setting marked by the glowing fingerprint.
Do this for all five.
When every dial has the fingerprint:
🔓 SAFE OPENS.
Take:
🪙 COIN HALF #1.
The visible red numbers around the safe are misleading and aren’t the combination you’re solving.
🔐 STEP 11 — MORGUE SAFE
You need to repeat the process for the Morgue safe.
If the lights return before you’ve completed everything, finish the current round and reactivate the Tesla coils to try again; your completed progress can be continued.
Use the Brenner Head.
Find the fingerprint-marked setting on all five dials.
Open it.
Take:
🪙 COIN HALF #2.
Now you’ve got:
🪙 + 🪙 = COMPLETE COIN.
⚔️ STEP 12 — GET THE RED TALON
Take the completed coin down to:
👑 EMPEROR’S CHAMBER.
Go to the base of Barbarossa’s statue and interact with the appropriate recess.
A hidden section opens.
Inside is:
⚔️ THE RED TALON.
Pick it up.
Cool.
Surely that’s why we needed it.
…
No.
We’re going to play music with it.
😐 STRAUB.
💿 PART 3 — THE HIDDEN RECORD
There are three colored spinning tops hidden around the upper Village area.
Their locations can vary between games.
You’re looking for:
🔴 RED
🟢 GREEN
🟡 YELLOW.
Each one corresponds to part of another puzzle.
Locate and interact with/shoot the required tops as the puzzle demands to obtain their directional information.
That information corresponds to:
THREE BUTTONS.
Record the direction associated with each button.
🧩 STEP 13 — ENTER THE THREE-DIRECTION CODE
Use the information from the tops to determine the three-button sequence associated with the hidden puzzle.
Enter:
Direction #1 → Button #1
Direction #2 → Button #2
Direction #3 → Button #3.
Correct input causes the Riverside:
🌊 WATER WHEEL
to start turning.
When it stops, electrical coils become exposed.
Hit the exposed coils with the Tesla Gun.
This reveals/allows you to obtain:
💿 THE RECORD.
🎵 STEP 14 — TAKE THE RECORD TO THE PUB
Go upstairs in the:
🍺 PUB.
Find the record player.
Place your record onto it.
Music begins.
And now we finally discover why Straub gave us a sword.
⚔️ YOU HAVE TO CHARGE THE RECORD WITH RED TALON ELIMINATIONS.
Naturally.
Because apparently Spotify Premium wasn’t available in 1940s Germany.
⚔️ STEP 15 — CHARGE THE RECORD
Here’s the important part:
You need roughly:
25–30 RED TALON ELIMINATIONS
during one complete playthrough of the song.
Wait until you hear the record restart before beginning so you get the full song.
Watch the record player’s needle/head—it moves inward as the track progresses.
If the song finishes before you’ve supplied enough energy:
❌ THE COUNT RESETS.
You’ll need to try again during the next playthrough.
When successful:
The player stops accepting energy.
Its side light begins flashing.
👀 WATCH THAT LIGHT.
🚦 STEP 16 — READ THE RECORD CODE
The light produces groups of:
🟢 GREEN FLASHES
separated by:
🔴 RED FLASHES.
Count the number of green flashes in each group.
You’ll get:
FOUR NUMBERS.
For example:
🟢🟢 → 2
🔴
🟢🟢🟢🟢 → 4
🔴
🟢 → 1
🔴
🟢🟢🟢 → 3
would give:
2 — 4 — 1 — 3.
That’s just an example.
⚠️ YOUR CODE IS RANDOM.
Write yours down.
🗣️ STEP 17 — SECOND VOICE OF GOD CODE
Remember the Voice of God?
The machine where we entered the Raven-painting numbers during the Casual quest?
We’re using it:
AGAIN.
Return to the Emperor’s Chamber.
Enter the four numbers from your Record Player into the four positions from left to right while facing Barbarossa’s statue:
1 → 2 → 3 → 4.
Then confirm the Voice of God tone.
If correct, you’ll receive an audio indication that the sequence worked.
💎 STEP 18 — THE RABENHERZ
Look above the Hilt.
There’s a chandelier.
And now all four Tesla variants finally matter simultaneously.
The chandelier must be energized using:
⚡ BLOODTHIRST
⚡ MIDNIGHT
⚡ REAPER
⚡ HURRICANE.
Hit the chandelier with each of the four upgraded Tesla variants.
Once all four register:
💎 RABENHERZ ACQUIRED.
That’s the special gem needed for the Hardcore ending.
🚨 STEP 19 — BOSS CHECKPOINT
🚨🚨🚨 STOP HERE. 🚨🚨🚨
Before triggering anything:
Make sure your team is ready.
Make sure the Hardcore objectives are actually complete:
⚡ All four Tesla variants
⚔️ Red Talon obtained
💿 Record charged
🔢 second Voice of God code entered
💎 Rabenherz obtained
If something is missing:
DON’T START THE BOSS.
Because we’re not doing two hours of Straub’s homework just to realize we forgot Question 17B. 😭
⚔️ STEP 20 — TAKE THE HILT
Now use the Tesla Gun on the energy surrounding the Hilt as required.
Interact with:
⚔️ THE HILT.
And you’re transported into the final encounter.
The good news:
THE HARDCORE PANZERMÖRDER FIGHT USES THE SAME CORE MECHANIC AS FIREWORKS.
The bad news:
It’s still Panzermörder.
👹 STEP 21 — PANZERMÖRDER BATTERY #1
Attack the Zeppelin’s active generator.
Eventually:
🔋 GENERATOR DROPS.
Go to it.
Supply the required energy until it’s fully charged.
Collect the battery.
Now damage Panzermörder until:
💥 HE’S STUNNED.
Grab the charged battery.
Attach it.
🔋 1/3.
👹 STEP 22 — BATTERY #2
Survive until the boss/Zeppelin cycle resumes.
Then:
🚢 Zeppelin generator
↓
🔋 Dropped generator
↓
⚡ Charge
↓
👹 Stun Panzermörder
↓
🔋 Attach
🔋🔋 2/3.
👹 STEP 23 — FINAL BATTERY
One final cycle.
🚢 → 🔋 → ⚡ → 👹 → 🔋
Attach:
🔋 BATTERY #3.
And—
💥 PANZERMÖRDER DEFEATED.
The Hardcore completion produces the altered/true ending associated with saving Klaus, and completing it unlocks:
🖤 DARK REUNION.
After all that…
Power switches.
Lightning rods.
Four Tesla variants.
Safes.
Fingerprint dials.
A sword.
Spinning tops.
A water wheel.
A record.
A flashing-light code.
Another Voice of God code.
A magical gem.
And Panzermörder.