When a machine in Call of the Elder Gods appears to have too many controls, do not start by trying every combination. First identify what the journal has recorded, which character can see the missing information, and what physical change proves that an input registered. That method solves nearly every major blocker, from the Virginia refinery to the moving spheres outside Pnakotus.
Evidence date: the material behind this route was frozen on July 19, 2026. Steam lists the game as a May 12, 2026 release by Out of the Blue Games and Kwalee. The newest official patch announcement found during research was v0.1.0.1, posted June 9, 2026; among other changes, it repaired a Polyp animation that could fail near the Elevator Tower. If that encounter does not react after a correct interaction, update the game before rebuilding the entire solution.
Full-story spoiler warning: the checkpoints below name every chapter location, the Great Engineer, Doctor West, Caleb Bowen, Pnakotus, and the final sacrifice decision. Optional achievement detours are deliberately left out unless they sit directly beside the main route.
Carry observations forward instead of memorizing screens
The game uses three different kinds of information, and confusing them creates most dead ends:
- Journal evidence translates objects into stable symbols, dates, names, melodies, or relationships. Inspect an object until the journal changes; merely looking at it from a distance may not count.
- Machine state is shown by a raised tower, a lit circuit, a green suitability lamp, a moving sphere, or a door button becoming active. Continue only after that feedback appears.
- Split knowledge belongs to Harry or Evangeline rather than both. In Chapters 4 and 5, switch characters as soon as one side can see only part of a code or can power only one end of a circuit.
Numbers in this guide describe the visible order of controls from left to right or top to bottom unless the device itself labels them. After entering a melody or code, use the machine’s confirm control; several panels accept the sequence without acting until that final press.
Prologue and Chapter 1 turn observations into two locks
In Evangeline’s opening dream, follow the only usable path to the stone platform and touch the statuette. Back in her room, inspect the locked notebook. Rotate the upper and lower curved pieces until their open faces point toward the center. Turn the middle piece so it completes the combined shape, then slide the locking pin. Answer the telephone and leave after inspecting anything you want recorded.
Harry’s hypnosis moves into his last Christmas with Norah. Examine every numbered ornament on the tree and test the working piano keys. The ornament shapes map to the same shapes on the keyboard, reducing the safe answer to 146. Open the safe and take the statuette; the memory ends when Harry recognizes the threat.
At Everhart Manor, use the open window rather than the locked front gate. Reach the main library, enter Harry’s office, and take the drawer key. The office also establishes two later dependencies: one volume is absent from the unusual shelf, and the portraits scattered through the next wing supply an age order. Unlock the library door, search the upstairs rooms and storage area, and let each portrait or torn image register before going outside.
The greenhouse key is behind the five-face garden gate. Each face points to an environmental symbol; rotate the matching urn toward the object carrying that symbol:
| Urn landmark | Target direction | Reason |
|---|---|---|
| Nearest the locked face gate | Toward that gate | The moon mark is mounted there. |
| Inside the white gazebo | Toward the dead fire | The hearth supplies the flame. |
| By Norah’s statue | Toward the cut tree | The earlier portrait shows the matching tree mark. |
| Behind the greenhouse | Toward the greenhouse wall | The flower emblem is on that side. |
| Beside the well route | Toward the well | Raise the bucket to expose its fish sign. |
Return to the face gate only after all five urns are fixed. Open the mausoleum, collect the greenhouse key, and inspect the final portrait. The missing book is inside the greenhouse. Back in Harry’s office, arrange the shelf titles by the ages shown in the reconstructed portraits, youngest first and oldest last. The opened shelf compartment points to a fireplace; operate the concealed control on the library fireplace to reach Harry and finish the chapter.
Chapter 2 separates water from black ooze before it crafts anything
In the Virginia cavern, speak to Harry at the upper mural, then inspect the refinery, the other murals, and the diving rig on the right. The suit needs electricity, pressure, and a filled tank in that order. At the four-switch box, enable 1, 2, and 4 so the meter rests in green. Follow the cable to the pump, power it, open the pressure valve until the gauge is full, place the loose cylinder on the filling cradle, and run the pump. Fit the charged cylinder to the suit before entering the water.
At the submerged apparatus, the objective is not to move all liquid into one place. The large left reservoir must contain four black layers and no water. Use the bottom intake to pull a mixed batch into the right vessel, send that batch left, and then bleed the water from the left vessel into the middle one. Discharge the middle vessel back to the lake. Repeat until three black layers remain on the left. Route the stray water from the right vessel into the middle, purge any final water from the left, then draw one clean upper layer from the pool into the left reservoir. Pull the large lever only when the left column is uniformly black.
Control now passes to Harry at the piano-like refinery. Read the five keys from left to right. Enter a command and press the circular confirm button:
| Command | Key order | Use on the route |
|---|---|---|
| Raise | 1, 2, 4, 5 | Bring the two towers to accessible floors. |
| Rotate | 1, 1, 4, 4 | Turn their entrances and working faces. |
| Fill | 1, 4, 2, 3 | Coat the unfinished statuette with black ooze. |
| Heat | 4, 2, 5, 3 | Set the filled statuette and form its orb. |
Raising or rotating may need more than one confirmed input because the towers have several levels and orientations. Retrieve the incomplete statuette from the left tower, place it in the right tower’s holder, apply Fill, then apply Heat. Take the finished piece and send it down in the outside dumbwaiter. As Evangeline, press the two side controls on the statuette, then the newly exposed center control. Put the suit back on and cross the black barrier with the active statuette.
Chapter 3 is a five-person logic grid disguised as an occult ritual
The interrogation answers do not block story progress. After the hypnosis sequence, Harry enters the Starry Wisdom building and finds five small figures facing larger Egyptian gods. Each small figure needs a rank, real name, profession, constellation, and hieroglyph. Do not try to guess them immediately; the upper offices contain all five categories.
First unlock those offices with the large pyramid. Use the portable model from a drawer as the reference for the edge pieces, rotating each edge until every face carries a consistent shape. Align the mark on the emerging ring with its fixed pointer. Turn both staircase rings toward the front, then rotate the upper dome so its blank face points forward. The five office doors are now reachable.
Search clockwise and record the evidence from the astronomer, archeologist, dilettante, psychiatrist, and biologist rooms. Take the film cylinder from the closed box and develop it in the archeologist’s back room. Expose the paper in the machine, then move it through the chemical trays in this order: middle, left, right. A black sheet means the order failed; discard it and expose a new sheet. The successful photo identifies the masks and body types used to connect the remaining clues.
Set the five figures as follows. For hieroglyphs, use the visual descriptions and confirm them against the journal rather than treating them as typed codes:
| Figure | Rank | Name | Role | Constellation | Hieroglyph cue |
|---|---|---|---|---|---|
| Crocodile-headed | 1 | Howard | Dilettante | Orion | Reptile facing a foot |
| Cat-headed | 2 | Patricia | Biologist | Corvus | Two opposed bowl shapes |
| Long-beaked | 3 | Felix | Archeologist | Auriga | Flag, bird, then snake |
| Dog- or fox-headed | 4 | Eugene | Psychiatrist | Eridanus | Bird, leaf-like form, and cube |
| Eagle-headed | 5 | Larry | Astronomer | Lynx | Eagle facing a head above a pit |
Press the central pedestal after every category is set. Ride the lift, search the upper corridor if desired, and open the final room to free Evangeline. The visible Great Engineer image supplies their next destination: Spitzbergen.
Chapter 4 makes Harry and Evangeline power each other’s route
At the Norwegian radio compound, take the generator-room key from the ground floor of the radio tower. When the generator shorts, Evangeline gains access to the circuit selector above while Harry can operate local breakers. Complete one branch before changing Evangeline’s selector:
- Choose the lowest circuit; Harry throws the garage breaker.
- Move to the usable left branch; ignore the branch whose destination has a destroyed panel. Harry powers the canteen beside the garage.
- Select the next branch and power the central storage building.
- Send power to the radio tower; Harry climbs to the final board above the upper room and activates it.
The Enigma memory is a tutorial, not a code you can skip by reading the later answers. Fit the encrypted sheet, set the rotor order and ring numbers, then wire the two plug pairs. The memory setup is GMR / rotors 3-1-2 / numbers 15-26-1 / plugs UA and WF. Answer the telephone after the decoded message.
Back in 1957, collect the three encrypted pages plus the January and February 1943 setting sheets. These are the three machine states:
| Message | Header and sheet | Rotor order | Ring numbers | Plug pairs |
|---|---|---|---|---|
| First | BDA, January | 3-2-1 | 19-25-6 | PW, CR |
| Second | SSW, January | 1-3-2 | 15-25-25 | ZI, HP |
| Third | UZW, February | 2-3-1 | 23-13-2 | GE, FM |
The decrypted records identify the four-digit lower gate answer: 9519. Set it on the four dials and turn the valve. The next section combines Harry’s control room with Evangeline’s view of the doors. Put on the diving suit, reach the console, and do not open a room while Evangeline is still inside it.
Use this safety-first order:
- Enter 527 and open its lower-right room so the Polyp leaves Evangeline’s route.
- Enable 438, open the lower-left door, and move Evangeline into that room.
- From her new sightline, read and enable 816. Move Evangeline out before using the related upper-left door to shift the Polyp again.
- Have Evangeline read 309, leave the exposed room, then open the upper-right destination. The creature is contained on the parallel side and the reunion path is clear.
If the orb or Polyp animation does not start after the room state is correct, this is one of the areas touched by official patch v0.1.0.1. Confirm the build and reload the current checkpoint before changing a verified door code.
Chapter 5 converts brainwaves into a place and time
In the frozen bunker, use the raised chair device beside the Great Engineer. Test connections until the right-hand machine can reproduce the useful frequencies, then set the four channels to A3, B1, C4, and D3. The suitability side must show green before the large red control will send Evangeline into Pnakotus’s past.
As the Yithian, inspect the five era murals and the solar-system diagram before entering the library beam. On the large location instrument, choose Earth, shown as the third planet in the recorded order. Set the era selector to the second mural’s two-curve mark because the animal in Evangeline’s remembered garden belongs to that era. Confirm from the reverse side of the selector and record the constellation sign projected by the device.
Follow the light route to the observatory. Rebuild the recorded constellation sign on the lower instrument, then enter the Yithian form of 5: two curves with a dot on the first. The returned coordinate series is 8-9-3-4-5. Back in the bunker, board the now-open vessel, stand on its center plate, reproduce those five symbols on the navigation device, and take the controls with Harry.
Evangeline later wakes in 2006 beside a mind-transfer rig. The source evidence does not provide a reliable text-only socket diagram, so use the device’s own success signal rather than an invented plug list: test a lead, watch both banks, and retain only a pairing that makes both sides green. When the complete arrangement stays green, return to the chair. After Doctor West leaves Evangeline’s body, Harry can tell her the warning or conceal it; that conversation changes context but does not stop Chapter 6.
Chapter 6 rewards preserving every sphere already in motion
The desert gate has three symbol stages. Each stage requires two things: route a light beam to reveal the relationship between spheres, then reproduce that moving relationship on the central ring. Never stop a sphere that already belongs to a solved stage.
- First relation: take the left path from camp, find the simplest wall symbol, climb past the ladder, and route the beam through the cliff mirror to the first receiver. At the center, release sphere 3. When it has moved through a quarter turn, release sphere 4. Match the simple wall sign with the three symbol levers and confirm it.
- Raised relation: redirect the second mirror toward the elevator-side receiver, raise that mirror with the nearby diamond control, and illuminate the upper single-sphere display. Back at the center, launch sphere 2 one quarter-turn behind sphere 4. Build and confirm the second wall sign without halting spheres 3 or 4.
- Lower relation: send the original beam down through the floor opening and follow the gate opened by stage two. The last display shows sphere 1 aligned with sphere 2. Release sphere 1 when it is parallel to sphere 2, reproduce the final sign, and confirm. The Pnakotus door opens.
Inside the gate, the main route descends toward the Yithian traversal beam. A cube and a hidden side space sit off the route for achievement cleanup; they are not required to reach the ending. At the tower, the decisive choice is binary in the verified route: Harry can stop Evangeline and take her place, or he can let Evangeline make the sacrifice Doctor West requested. Both continue to an ending, and each has its own achievement. A separate source claimed a third ending but did not provide a reproducible, independently supported route, so this guide does not present it as fact.
When a correct answer still produces no response
- Open the journal and verify that the clue was recorded. A device may remain incomplete when the player saw the object but did not finish inspecting or turning it.
- Use the confirm control. Melodies, Enigma settings, symbols, and coordinates can remain staged until a circular or triangular button is pressed.
- Check the active character. A code may be correct while the required local breaker, door view, or physical lever belongs to the other protagonist.
- Preserve solved state. In Pnakotus, stopping an earlier sphere destroys the timing relationship needed for the next symbol.
- Reload only the current checkpoint after confirming the official build. Patch v0.1.0.1 specifically addressed a failed Polyp animation, so an inert encounter is not always evidence that the code is wrong.
Official identity and route evidence
The official Steam listing supplied AppID 2174380, the May 12, 2026 release date, developer and publisher credits, feature data, and the four original JPGs used above. The Out of the Blue Games page confirmed the two-protagonist, observation-led puzzle design. Official Steam announcements set the patch boundary. The route was reconciled from readable community walkthroughs and puzzle references; blocked pages, warning pages, third-party images, and unverified video were excluded.