Der Eisendrache
Der Eisendrache

My Brother's Keeper

Der Eisendrache

Main Quest 17 steps
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Before any easter egg step can begin, you must obtain the Wrath of the Ancients — the base bow that is the foundation of everything in Der Eisendrache.

Feed 3 dragons by killing 8 zombies near each one. Dragons are located at:

  • The first courtyard near the Double Tap perk, some stairs, a WunderFizz machine and a mystery box spot
  • Inside the church, above the fireplace
  • In the underground, near the pyramid and the four altars

Important: Wait for the dragon's eating animation to finish before killing another zombie nearby, or it won't count.

Once all three dragons have been fed they will crumble to statues. Head back upstairs toward the church and enter the room with the grave and the suit of armor. The Wrath of the Ancients will be sitting on the grave, ready to pick up.

The Rune Prison is the Fire upgrade for the Wrath of the Ancients. Its charged shot stuns zombies in an AoE.

Step 1 — Unlock the broken arrow:

  • Head to the Clock Tower and go upstairs. Shoot a charged arrow at the marked wall — it will break and release the broken arrow quest item.

Step 2 — Create the sun:

  • Go to the Landing Pad in the underground cave (past the pyramid, past the church staircase). Wait for a rocket test countdown to begin — the doors will seal. Stay inside the safe teleporter area.
  • The moment the test ends, sprint outside and shoot the glowing fireball to your right with the bow before it flies out of range (~10 seconds). A small sun will appear above the map if successful.

Step 3 — Shoot three red circles while airborne:

  • Use the Wunderspheres to launch yourself into the air, then shoot a charged arrow at each of the three red circles. The circles are only visible and glowing while you are airborne.
  • Circle locations: near the Death Ray on top of the castle, near a WunderFizz spot also on top of the castle, and in the upward alley near the Double Tap area.
  • After hitting all three, stand in each circle and kill zombies until a glowing ray shoots upward — you don't need to kill near the circle, just stand in it.

Step 4 — Move the blazing rock to a fireplace:

  • Go to the Clock Tower and interact with the clock. A symbol will light up corresponding to one of three fireplaces (church / room near first dragon / near Samantha's room).
  • From the glowing circle, shoot a charged arrow at the ground to spawn a blazing rock. Stand on it and shoot again to move it — in 3 shots, guide it into the correct fireplace. Shoot as far as possible each time.
  • Interact with the fire in the fireplace to pick up the arrow.

Step 5 — Forge the arrow:

  • Return to the top of the castle and interact with the sun. It will rise and explode — pick up the reforged arrow it leaves behind.

Step 6 — Charge at the underground altar:

  • Go to the underground Fire altar and place the arrow on it. Kill zombies very close to the altar until a sound plays. Interact with the arrow to receive Kreeaho'ahm nal Ahmhogaroc.

The Wolf Howl is the Spirit upgrade. A left-click shot turns full-health zombies into crawlers — very useful for crowd control.

Step 1 — Find the paintings in the correct order:

Interact with four paintings scattered around the castle in this exact sequence:

  1. The king on his throne with a wolf beside him
  2. The king on horseback in full armor
  3. The castle burning with a dark creature in the sky
  4. The skeleton of the king

Painting locations: past Samantha's room near the 1500-point door, on a balcony in the church, in the Clock Tower near the stairs, and in the room beneath the Clock Tower near Mule Kick. If you pick the wrong painting in sequence, restart from painting 1.

After completing the sequence, head underground — the wall on the left after the stairs will have broken, dropping the quest item on the floor.

Step 2 — Shoot the flag skull:

  • At the Landing Pad, look behind you at the mountain entrance — there is a flag high up on the wall. Shoot the base of the flag with a charged arrow to release a glowing skull. Pick it up once it lands.
  • Return to the underground altar room and place the skull on the headless wolf skeleton near the Spirit altar.

Step 3 — Follow the spectral wolf:

  • A spectral wolf will appear. Follow it — it will stop at three locations, each revealing a small pile of bones. Kill zombies near each pile to fill it, then the wolf will scratch it open to reveal a piece you must pick up before moving on.
  • The wolf will finally stop against a basement wall. Above it is a hole with a wolf symbol that only appears when you wall-run using the anti-gravity mechanic. Shoot the symbol while it is lit up.
  • A platform will rise — stand on it and interact with the hole. Interact again to grab the arrow.

Step 4 — Charge at the underground altar:

  • Place the arrow on the Spirit altar near the Pyramid underground. Kill zombies close by until a sound plays, then interact to receive Kreeholo lu Kreemasaleet.

The Storm is the Lightning upgrade and is considered the most powerful bow in Der Eisendrache, dealing massive AoE damage with charged shots.

Step 1 — Unlock the broken arrow:

  • From anywhere with line of sight to the top of the castle, shoot a regular arrow at the weathercock (rooster weather vane) on the castle's highest point. This drops the broken arrow quest item.

Step 2 — Ignite three woodsheds:

Shoot a charged arrow at each of the three woodsheds:

  • One on a hill in the town landscape below the castle (visible from the top)
  • One on the castle rampart outside the map, easily spotted to the right when standing outside the Clock Tower
  • One on a hill above the Landing Pad, to the right

Step 3 — Activate all 5 symbols in the underground while wall-running:

  • In the underground cavern, there are five blue symbols on the walls. You must wall-run through all 5 without touching the ground during an active anti-gravity sequence. If done correctly, they remain blue after gravity returns.

Step 4 — Charge three electrical jars by killing zombies:

Kill 6 zombies near each of three electrical jars:

  • One in the Clock Tower
  • One in the room above Double Tap
  • One in the tunnel that leads the rocket to the Landing Pad

Step 5 — Electrify the woodsheds:

  • Aim your bow at a charged electrical jar to electrify your arrow — do not un-aim or the charge is lost. While still aiming, shoot one of the burning woodsheds. Each jar can only be used once, so plan which jar covers which shed.
  • After all three woodsheds are electrified, the weathercock on the castle will spark. Head to the base of the Death Ray tower and interact with the blue cloud that appears — this is your arrow.

Step 6 — Charge at the underground altar:

  • Place the arrow on the Lightning altar near the Pyramid underground. Kill zombies close by, then interact with the arrow to receive Kreema'ahm la Ahmahm.

The Demon Gate is the Void upgrade. It is the most complex and time-consuming bow to obtain, but delivers powerful AoE dark energy shots.

Step 1 — Unlock the quest:

  • Shoot a charged arrow at the void symbol on the roof of the tunnel near the Double Tap perk (above the 1000-point gate).
  • Head to the Trophy Room (beneath the Clock Tower) — a glowing purple square has appeared. Melee kill a zombie on it, then interact with the broken tile to release a floating jar.

Step 2 — Collect the 6 skulls:

Find and interact with all six skulls scattered around the map:

  • On a broken wall near Mule Kick
  • On a church window to the right of the entrance
  • In a toy chest in Samantha's room
  • On a wall near Double Tap
  • In a sink in the teleporter room
  • On the truck to the left of the Landing Pad

Once all six are collected, bring 6 crawlers into the purple circle in the Trophy Room — each skull will consume one crawler. Then shoot the flying jar with a charged arrow. A dark demonic voice will say three words — these are your code words. Write them down. Possible words are: DOOR, ROE, HORN, HEARTH, CROWN, GRIFFIN.

Step 3 — Collect 6 purple symbols (RNG-based):

  • Kill zombies anywhere on the map — purple symbols drop randomly. Each symbol must be collected and will appear on the purple circle in the Trophy Room, but disappears after only 5 seconds if not collected. Collect all 6.

Step 4 — Decode the armor corridor:

  • Head to the corridor with 6 suits of armor (between the power lever and Samantha's quarters). Each armor has a symbol in front of it.
  • Interact with the three armors matching your three code words, in order. Each interaction spawns a purple output symbol — note these too (describe them with simple words like Teeth, Fang, Bow Tie).
  • Return to the purple circle in the Trophy Room and shoot the glowing symbols in the correct order (matching your output symbols). If the wrong code is entered, the skulls will attack you — flee the room and try again.
  • The dark voice will confirm success. Interact with the tile to receive the arrow.

Step 5 — Charge at the underground altar:

  • Place the arrow on the Void altar near the Pyramid underground. Kill zombies close by, then interact to receive Kreegakaleet lu Gosata'ahm.

This is the first step of the main easter egg quest. You need the base Wrath of the Ancients (not an upgraded bow) for this step. If you have an upgraded bow, drop it at its altar first and re-pick up the base bow where you originally found it.

Head to the Teleporter Room (underground, accessible from the Pyramid area) and shoot a charged arrow at all 6 blue glowing balls on the teleporter device. If done correctly, all six balls will change from blue to a golden-yellow colour.

This charges the teleporter and makes time travel possible.

Note: You will need to re-do the next step (shooting electrified items) at the start of each new round to keep the teleporter charged. Plan accordingly and don't waste rounds.

After charging the teleporter, a Margwa roar will play — this signals that one of 8 items around the map has become electrified. You must find and shoot it with an upgraded bow. After each shot, another item electrifies elsewhere. You need to shoot 4 items in total.

The 8 possible electrified item locations are:

  • A car wheel near Double Tap perk
  • A phone near Quick Revive perk
  • A box in the room above Double Tap
  • A globe near Samantha's bedroom (not the one in the fireplace room)
  • A phone on the wall near the power lever
  • A clock in the living quarters near the Clock Tower
  • A clock in the church, above the second dragon's fireplace
  • A radio in the church, on the opposite side from Speed Cola

Important: This step must be repeated at the start of every new round throughout the easter egg (roughly until step 10 / the Vril Generator step), as the teleporter charge resets each round. Always complete this before advancing a round.

With the teleporter glowing purple, all players must stand on the teleporter pad to activate it. You will be sent back in time — the same room but in the past, with no zombies, no weapons, but on a limited timer before being automatically returned.

Before time runs out, you must do three things:

  • Pick up the Soul Canister on your left as you arrive
  • Pick up the two fuses on your right, on top of a box
  • Memorize Dr. Groph's safe code — watch the code he enters on the digital screen. It is composed of 3 symbols chosen from: an Arrow, a Circle, a Card, and a Lightning bolt (repetition is possible). Write it down in Steam chat or on paper.

Tip: Act quickly — the timer is strict. Prioritize the code memorization as it is the hardest to re-do if missed.

After returning from the past, head to the roof of the castle.

  • Find the central machine on the roof and insert one of the fuses you collected during time travel.
  • Walk around to the other side of the same machine and interact with the display panel to set it to \"Protect\".

Note: The Death Ray must be used at least once during this game for the next step to trigger. If you haven't fired it yet, do so now.

After setting the Death Ray to Protect, Hellhounds will begin spawning. Head to the console near the Clock Tower — it will now be powered on.

The console displays symbols. Enter the 3-symbol code you memorized from Dr. Groph during time travel, from top to bottom.

  • Symbols to choose from: Arrow, Circle, Card, Lightning bolt
  • If you enter the wrong code, you must return to the teleporter, redo the electrified items step to recharge it, time travel again, and re-memorize the code.

If entered correctly, the safe underground will be unlocked.

Head back underground to the Teleporter Room. The safe will now be open — take everything inside:

  • Two additional fuses
  • A card

Return to the roof of the castle. On either side of the central machine are two Tesla Coils, each missing a fuse. Insert one fuse into each coil to complete them.

Finally, reset the Death Ray back to \"Destroy\" using the display panel — this is required for the next step.

Two memory consoles are now active on the map. Each shows 4 symbols (Arrow, Circle, Card, Lightning) for a few seconds — they then go dark and show a single symbol on a main screen. You must quickly interact with the panel that was displaying that symbol before the timer expires.

Console locations:

  • One near the Clock Tower
  • One on the Landing Pad

Important rules:

  • From the moment you activate a console until you finish it, unlimited Hellhounds spawn and rush at you — leave one zombie alive to prevent the round from ending.
  • If you fail the second console's memory game, you must redo the first one too.
  • When each game is completed successfully, the corresponding Tesla Coil will glow white.

Tip: At the start of each memory game, silently repeat the 4 symbol positions in your head — this is much easier than reacting blind to the prompt.

With both Tesla Coils glowing white, return to the roof of the castle one more time.

  • Set the Death Ray display panel to \"Protect\" again.
  • Interact with the green button on the back of the machine to fire. Stay far away from the second courtyard — the Tesla Coils will strike a rocket and bring it crashing down.

Head to the second courtyard where the rocket has crashed and pick up the Vril Generator (a glowing golden rod) near the wreckage.

You need to time travel a second time. If the teleporter is no longer charged (it resets each round), repeat the electrified items step to recharge it first.

Once all players are on the teleporter pad and you travel back:

  • Find and interact with the book on your right — it will open a crate near the sealed exit.
  • From the crate, pick up the Ornamented Stone (a decorated ancient stone).

You will be automatically returned to the present with both the stone and the Vril Generator in your possession.

This is the longest sustained combat step of the easter egg.

Step 1 — Activate the ghost:

  • Head to the underground room where you originally picked up the Wrath of the Ancients (the grave room near the church). Insert the Vril Generator (golden rod) into the grave.
  • A ghost will appear and begin moving around the map.

Step 2 — Kill zombies at 4 soul circles:

  • Follow the ghost — it will stop at 4 different locations, each time generating a glowing circle on the ground. Stand in the circle and kill zombies with the bow matching the circle's color.
  • Your screen will tint a color indicating which bow to use. Just fire charged shots and watch for glowing orbs leaving dead zombies — that confirms the correct bow.
  • Infinite Hellhounds will spawn throughout this entire step. PanzerSoldats will also appear.

Step 3 — Place the Ornamented Stone:

  • While following the ghost and completing circles, also place the Ornamented Stone in the slot near the Double Tap perk. Don't forget this or you cannot proceed.

Step 4 — Place the Soul Canister near the Pyramid:

  • After all 4 soul circles are completed, follow the ghost underground. Place the glowing Soul Canister (from the first time travel) near the Pyramid. This triggers the final boss fight sequence.

Recommended: Before placing the canister, ensure you are fully stocked — Juggernög, Quick Revive, a fresh Rocket Shield, maximum ammo, all bows, and Afterlife Gobblegums.

To enter the boss room, every player must place their Ragnarok DG-4 on the glowing blue anti-gravity tiles in the underground. You will be teleported into a dark red, enclosed circular arena.

Arena hazards:

  • Skeletons (reskinned zombies) spawn constantly — move and avoid them rather than wasting ammo.
  • The Keeper boss will periodically teleport to the center of the room and begin charging a massive electrical attack that kills everyone in the arena when released.

Surviving the charge attack:

  • Option A: Hide behind one of the pillars to avoid the blast entirely.
  • Option B: When the boss starts charging, a glowing ball appears in the small hole in the center. Quickly place a Ragnarok DG-4 in the hole — this interrupts the attack, weakens the Keeper, and causes the symbol on his chest to glow.

Damaging the Keeper:

  • While the chest symbol is glowing, shoot it with basic (non-charged) arrows — rapid fire deals more total damage than charged shots.
  • After taking enough damage, the Keeper will disappear and PanzerSoldats will spawn. Kill them all to bring the Keeper back.
  • Repeat the cycle until the Keeper dies in a white flash. You will be teleported back to the present map.

The final two interactions complete the easter egg.

Step 1 — Pyramid:

  • Head to the underground Pyramid device (the same one used throughout the map for Pack-a-Punch). Place the Summoning Key (carried over from Shadows of Evil) into the Pyramid slot, then pick it back up.

Step 2 — Clock Tower console:

  • Climb the stairs near the Clock Tower to the same console where you entered Dr. Groph's code earlier. Insert the Summoning Key into the console.

This will trigger a chain reaction on the Moon, destroying Dr. Groph's base. The ending cinematic will play.

🎉 Congratulations — the Der Eisendrache main easter egg is complete!

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