Tenebris Somnia: Puzzle Walkthrough

Updated Tenebris Somnia

Step-by-step solutions for every tricky puzzle and boss fight in Tenebris Somnia, from Ivan’s apartment to the Desiderium finale.

Tenebris Somnia: Puzzle Walkthrough

Solutions for the hardest boss fights and puzzles in the game, in the order you meet them. Expect heavy spoilers.


Obscuratus candle fight

Tenebris Somnia: Puzzle Walkthrough

Obscuratus is invisible when the fight starts. Run around the arena and interact with each lit candle. Once every candle is out, he becomes visible.

You have to do this several times. Each reveal lets you hurt him, and he only dies after enough reveals.


Fumus and the red circles

Tenebris Somnia: Puzzle Walkthrough

Fumus places red circles on the ground. Stepping on one can be deadly, and the result depends on what you are holding:

  • Loaded gun: you turn the gun on yourself and die.
  • Melee weapon: you hit yourself on the head and take some damage.
  • Unloaded gun: you can’t die, but a very long animation plays of you trying to pull the trigger on yourself.

One of the best strategies is to unequip everything and walk straight into the circles. They vanish instantly, which clears hazards off the floor.


Breaking free from grabs

Tenebris Somnia: Puzzle Walkthrough

Some enemies and bosses can grab you and lock you in place. If you don’t fight back, this can kill you:

  • Vitria (in her boss fight) fires a tentacle that catches Julia by the throat and slowly drags her in. Once you are close enough, Vitria kills you instantly.
  • Relicta ghosts latch on and drain your health for as long as they hold you.

To escape any grab, mash the interact button quickly. You can move normally again once you are free.


Sanguis beast form

Tenebris Somnia: Puzzle Walkthrough

Near the end of the chase sequence, lead Sanguis to the giant knife. Either time his pounce just right or get him to stand directly above the knife. The knife then stabs through him and kills him instantly, for now.

This ends the fight, and you can move on to the next area.


Studio lights in the Sulfur fights

Tenebris Somnia: Puzzle Walkthrough

Glowing studio lights ring each arena in the Sulfur statue fights. If you are overwhelmed, or enemies are swarming the statue, run to a light and shoot it or hit it with a melee weapon. Every enemy on screen dies instantly.

You can break these lights anywhere you find them in the game.


Door puzzle in Ivan’s apartment

Tenebris Somnia: Puzzle Walkthrough
  1. Go into the bathroom (the blue door beside the Devora poster) and take the Wrench.
  2. In the kitchen (the grey door to the right of the bathroom), take the Developing Chemical.
  3. Enter Ivan’s bedroom through the door to the right of the TV set.
  4. Equip the Wrench and hit the boarded-up window on the right side of the room.
  5. When the bottom board falls and sunlight shows through, cross the room and take the Glass from the nightstand.
  6. Go back to the bathroom, stand in front of the broken mirror, and use the Glass from your inventory. It becomes the Glass with Blood.
  7. In your inventory, combine the Glass with Blood with the Developing Chemical. You get the Glass with Chemical and Blood.
  8. Return to Ivan’s bedroom on the right side of the apartment. Stand at the window you opened in step 4 and use the Glass with Chemical and Blood. You get Auritsatio.
  9. Go to the locked Study Door and use Auritsatio on it. The door unlocks.

TV remote puzzle

Tenebris Somnia: Puzzle Walkthrough
  1. In Ivan’s office on Floor 2, search the clothes rack on the right side of the room, next to the laptop desk. You find the Glove.
  2. Go back to the kitchen. Stand at the circuit breaker on the left side of the room and use the Glove.
  3. Once the lights go out and the washing machine stops, take the first Battery.
  4. Leave the kitchen and go to the bathroom. Interact with the tub curtain to reveal the second Battery.
  5. Leave the apartment and ride the elevator back up to Floor 3. Go back into the first version of Ivan’s apartment you visited earlier.
  6. In the Floor 3 apartment, go to Ivan’s office and stand at the TV remote on the desk. Use both Batteries.
  7. Leave and return to the Floor 2 apartment. The TV now shows a series of symbols instead of static. Press the matching floor symbols fast enough to unlock the door to the right of the TV.

Note: the symbol order is randomized.


Key stuck in the door

Tenebris Somnia: Puzzle Walkthrough
  1. After you talk to Sanguis, pick up the blue Triangular Stone in the candle arena. It sits to the right of the red candle.
  2. Leave the bedroom for the main apartment area. If you don’t have the Scissor Blade and the X-Ray yet, get them now.
  3. The Scissor Blade is on the kitchen counter. The X-Ray is just below the apartment’s front door, on a short bookshelf between a picture frame and a lamp.
  4. Leave the apartment and walk down the hallway toward the green Floor 2 elevator. Stop at the blue door with a symbol on it and use the blue Triangular Stone.
  5. Inside, go to the leftmost door. It is marked A.S. and has red carpet poking out from under it. Use the Scissor Blade on it, then the X-Ray. You get the A.S. Key.

Poster cutouts and the Devora picture

Tenebris Somnia: Puzzle Walkthrough
  1. In the director’s office, interact with the desk and take the second Scissor Blade. Combine the two Scissor Blades in your inventory to make Scissors.
  2. Leave the office and look for poster cutouts that seem out of place. Stand in front of each one and use the Scissors. A correct one gives you a Cardboard Piece.
  3. Collect all six Cardboard Pieces in the hallway, then go back to the director’s office.
  4. Stand at the torn poster in the back left of the office and use one Cardboard Piece. This starts the second part of the puzzle.
  5. Rebuild the Devora poster with the six Cardboard Pieces.
  6. When the poster is complete, use the Lighter. The poster burns, and you get the Bathroom Key.
  7. Leave the office and enter the bathroom directly to the left of its door.
  8. Take the Mop Handle from the bathroom. You will need it later.

Where to use the Mop Handle

Tenebris Somnia: Puzzle Walkthrough
  1. Go back to the Floor 2 apartment, to the spot where you met Sanguis and found the Triangular Stone.
  2. In the candle arena, stand beside the square on the wall near the windows.
  3. Use the Mop Handle. Be ready for a fight.

Glass pitcher sound puzzle

Glass pitcher sound puzzle
  1. Go to the symbol door just left of the Floor 3 elevator and use the blue Triangular Stone on it.
  2. Outside, go left and take the first Bottle. Then enter the bar.
  3. Collect one more Bottle from each of these spots: the table, behind the bar, and the bathroom.
  4. Go to the counter and ring the bell. Remember the tone.
  5. Stand by the giant glass pitcher and use Bottles to pour liquid in. Each Bottle changes the pitch, and you need it to match the bell from step 4. Hit the pitcher with the Wrench to hear its current tone. Use an empty Bottle to take liquid out.
  6. Once the tones match, walk back and ring the bell again. The pitcher shatters, and you can pick up the USB Cable.

Note: the Bottle order is randomized.


Projector room code

Tenebris Somnia: Puzzle Walkthrough
  1. Take the elevator to the 1st Floor and go right to Door 6.
  2. Walk to the far right of the room. Interact with the doorway where light is shining through.
  3. In the dining room, take the 3rd door on the right.
  4. Climb to the top of the stairs. Take the USB Adapter from the floor near the boarded-up door.
  5. Combine the USB Cable with the USB Adapter. You get the USB Charger.
  6. Head back to the elevator and go to Ivan’s apartment on Floor 3. Go through the purple door left of the broken TV.
  7. On the right side of the room, stand by the wall outlet and Ivan’s phone and use the USB Charger. You get the projector room code.
  8. Leave, take the elevator to the 1st Floor, and go left to Door A. Inside, enter the code to unlock the door. If you forget it, check the Old Book in your inventory.

Dinner plates and the green Square Stone

The dinner plates on the dining room wall, with the upper-left plate marked
  1. In the projector room, stand by the projector and use the Devora 1 Film Canister. If you don’t have it, it’s in the chest on the left side of Ivan’s office on the 2nd Floor.
  2. Go downstairs to the room where you unlocked the projector room door. Take the double doors at the top of the screen into the theater.
  3. The leftmost box in the theater is now open. Take the Plate with X.
  4. Go back toward the 1st Floor elevator and right to Door 6. Walk to the far right of the room and go through the doorway with light shining through.
  5. In the dining room, take the 3rd door on the right.
  6. Go up the stairs to the first door. Enter, head left, and take the Black Tape from a counter.
  7. Back in the dining room, use the Black Tape on the upper-left plate (shown in the image above). Then use the Plate with X on the empty spot below it. The center double door unlocks.
  8. Go through the double doors and take the green Square Stone.
  9. Go to Ivan’s apartment on the 3rd Floor and walk all the way right to the green symbol door. Use the Square Stone on it. Inside, take the White Candle from the left dresser.

Electrical current room

Electrical current room
  1. In the film school, go through the green door into the electrical puzzle room.
  2. Interact with the bottom-left switch. Wait for the gate to rise all the way.
  3. When the gate is at the top, use the bottom-left switch again. Then run across the room and use the bottom-right switch before the gate drops. Cables glow when they carry current, so time your run to avoid a shock.
  4. The bottom-right switch opens the box at the top of the room. Take the Piece of Cable from it, then go to the upper-left switch.
  5. Standing at the upper-left switch, use the Piece of Cable. Interact with the switch and make sure it points up.
  6. Go back to the bottom-left switch and use it once more. The statue in the middle of the room collapses. Take the RCA Cable from where it stood.
  7. Go downstairs to the cinematography room and use the RCA Cable on the camera.

Cinematography class

The camera in the cinematography class
  1. Check that you have used the RCA Cable on the camera (shown in the image above).
  2. Keep interacting with the camera to switch views until the outline of a female figure appears on the wall.
  3. Stand inside the outline and copy its pose to fill the empty space.
  4. Go back to the camera and keep changing the scene until the green door shows on the camera feed.
  5. The female figure is pressing against a glass window. Hit that window with a melee weapon until it shatters.
  6. Return to the camera and cycle the views until a bird appears. Keep going until it lands on a branch with a green Copper Seed in its beak.
  7. Walk up to the bird and take the Copper Seed.
  8. Go up to the first floor and follow the hallway all the way left to a green vase.
  9. Stand in front of the vase and use the Copper Seed on it. Flowers grow.
  10. Pick up the Flowers and return to the cinematography class.
  11. Stand in front of the female figure and use the Flowers on her.
  12. Go back to the camera and cycle it until the female figure crumbles and the male statue in the chair kills himself.
  13. Once the male statue falls from his seat, take the green Copper Key from the chair.
  14. Use the Copper Key on the green door and go through.

TV Room

  1. The green door you opened with the Copper Key leads into the TV Room.
  2. Head north right away and keep pressing interact while you are in the dark.
  3. TVs start switching on. Each one you activate lights up more of the room.
  4. Stay alert while you do this. A Vorax enemy spawns and ambushes you.
  5. When the room is fully lit, a note about the color pattern on the TVs is added to the Old Book.
  6. Take the Black Candle from the desk and leave the room.
  7. Combine the Lighter with the Black Candle in your inventory to light it.

Elevator puzzle

Elevator puzzle
  1. If the Black Candle from the TV Room isn’t lit yet, combine it with the Lighter.
  2. Carry the lit Black Candle into the elevator and use it while standing inside.
  3. You set the candle down, and the elevator puzzle begins.
  4. Check the Old Book for the color pattern. It is randomized every playthrough, so yours may differ.
  5. Read the pattern from top to bottom. Visit the floor that matches each color, in that order.
  6. Each floor has its own color:
FloorColor
3rd FloorBlue
2nd FloorGreen
1st FloorRed
Ground FloorWhite
  1. Ride to the floors in the order your Old Book shows. If you get it right, the elevator grows more and more corrupted until a floor -1 appears on the panel. Select it.

Second Film Canister and the Cow Skull

Second Film Canister and the Cow Skull
  1. Floor -1, reached through the elevator puzzle, is the deepest part of Ivan’s memories.
  2. Go through the corridors and head right whenever you can. After you break both glass windows and move the obelisks, you reach a door to Ivan’s room from when he was a child.
  3. Interact with the Film Canister next to the Ivan statue to take it.
  4. Go back out and retrace your path to the elevator.
  5. The elevator rises on its own and stops at the ground floor of the apartment building.
  6. Interact with the elevator again, go to the first floor, and head to the projector room.
  7. Use the second Film Canister on the projector. A second metal box opens in the theater. Go downstairs to it.
  8. Take the Cow Skull from the box, then return to the elevator hallway.
  9. Go into the dining room and through the rightmost door to the staircase.
  10. On the way up, enter the first door you reach.
  11. Walk to the far left of the hallway and use the Cow Skull on the white door.

Cursed film canister and the Silver Key

Cursed film canister and the Silver Key
  1. Enter the film school and go to the first floor.
  2. Follow the hallway all the way left to a blue door.
  3. Go in and interact with the film canister on the table.
  4. You are teleported to the film studio lobby. Go back to the film school and interact with the canister again.
  5. After the second teleport you land in the film studio lobby again, but now Sanguis is sitting in a chair next to one of the statues.
  6. Talk to Sanguis and go through all of his opening dialogue. Then pick the SPELL option and keep going until he writes information in your Old Book and hands you the Silver Key. Exhausting his dialogue gives you key items and moves the story forward.
  7. Go to the apartment bathroom on the 2nd Floor and use the key on the locked cabinet beside the sink. You get the Silver Bottle.
  8. Use the Silver Bottle on three save points. The fastest route is the second floor apartment bedroom, then the third floor apartment office, then the second floor director’s office.
  9. After all three save points, the Silver Bottle holds 3 doses of water.

Red Pentacle Stone and the purified water

Tenebris Somnia: Puzzle Walkthrough
  1. Defeating Fumus drops a red Pentacle Stone. Pick it up.
  2. Go all the way back to Ivan’s apartment on the third floor of the apartment building.
  3. Use the red Pentacle Stone to unlock the bathroom door. You will come back here for a later puzzle, so you can grab the Chemicals from the table to the south now.
  4. Go to the second floor of the apartment building and take the far-left door into the film studio lobby.
  5. Use the Pentacle Stone on the white door with the red symbol to unlock it. If you already used the stone on Ivan’s bathroom door, it now crumbles to dust.
  6. You are now in the hotel room. Go through the dialogue, then walk to the window where the Julia statue stands.
  7. Use the Bottle With Three Doses of Water on the window. The moonlight purifies what’s inside.
  8. Go back to the first floor of the film school, to the room with the cursed film canister on the table.
  9. Use the Purified Water on the cursed film canister to cleanse it.
  10. This gives you the third and final Film Canister.

Cold Chisel

Tenebris Somnia: Puzzle Walkthrough
  1. In the projector room, watch either the whole movie or only Canister 3. Either one unlocks the final box in the theater room.
  2. After the cutscene, go down to the theater and interact with the last box. You get the Cold Chisel.
  3. Go out to the apartment hallway and into the dining room.
  4. Take the door on the far right of the dining room to the staircase.
  5. At the top of the stairs, use the Cold Chisel on the boarded-up door.
  6. Hit the door with a melee weapon until the boards come off.
  7. With the boards gone, you can move on to the next area.

Light bulb puzzle

Light bulb puzzle
  1. Go to the first floor of the Film School and enter the photo developing room.
  2. Interact with the lamp in the left corner to take the Lightbulb.
  3. Go all the way back to the dining room on the first floor of the apartment building.
  4. Take the rightmost door in the dining room to the staircase.
  5. Climb to the top floor and go through the door. If it is still boarded up, use the Cold Chisel on it, then break the boards with a melee weapon.
  6. Go to the far right of the hallway and push the bookcase aside.
  7. Go through the door and use the Lightbulb on the bloody table. You get the Red Lightbulb.
  8. Leaving the room triggers a cutscene, and an ambush starts right after it.
  9. Once you survive, you can get ahead by going back to the photo developing room in the film school and using the Red Lightbulb on the lamp.

Photo development puzzle

Photo development puzzle
  1. Pick up the Photo Roll from the floor of the theater lobby on the 1st Floor of the apartment building. This section needs it.
  2. Go to the bathroom in Ivan’s apartment on the 3rd Floor of the apartment building.
  3. If the door is still locked, use the red Pentacle Stone on it. Inside, take the Chemicals from the table to the south.
  4. Return to the Film School and go to the photo developing room on the first floor.
  5. Use the Red Lightbulb on the lamp.
  6. Use the Chemicals on the trays on the table just above the lamp.
  7. Go to the center table at the north end of the room and use the Photo Roll on it.
  8. Move left and use the Negative on the table.
  9. Right after the Negative, use the Photo Paper. You get the Printed Photo.
  10. Go back to the table with the chemical trays and use the Printed Photo on them. A cutscene plays.
  11. After the cutscene you receive the Photo.
  12. Leave the film school and go to Ivan’s bedroom on the 3rd Floor of the apartment building.
  13. Use the Photo on the table with the picture frame. The drawer unlocks.
  14. Interact with the table again to take the Hexagonal Stone from the drawer.
  15. Go back to the film school and up to the second floor, where Sanguis is lying against the wall. Go through his dialogue, then use the Hexagonal Stone on the locked symbol door to reach the next area.

Desiderium: film school

Desiderium: film school
  1. Go to the TV room on the first floor and switch on the TVs in the dark room.
  2. Once they are on, take the Blue RCA Cable from the table.
  3. Leave the room and run down the hallway to the blue door.
  4. Take the Black Lightbulb from the desk, then head back to the first floor.
  5. In the photo developing room, use the Black Lightbulb on the lamp in the left corner. The game’s colors invert, which turns the Blue RCA Cable yellow.
  6. Go down to the ground floor and enter the film production room.
  7. Use the Yellow RCA Cable on the camera. Then walk to the rope and interact with it to reach the next area.
  8. Use the lever in the bottom-left corner and wait until the gate is fully raised. Use the lever again to cut the current. You can now safely run to the box and interact with it.
  9. Go back to the first floor, to the room that used to hold the cursed film canister. Break the glass and use the Apartment Key on the purified water.
  10. Return to the ground floor and enter the room where you found the Black Lightbulb. Statues now stand around a table. Interact with the Julia statue to get the Red Candle, then combine it with the Lighter to light it.
  11. Go out to the ground floor lobby of the apartment building and take the door right of the elevator into the stairwell.
  12. Use the lit Red Candle on the wall with the red symbol.

Desiderium: fly puzzle

Desiderium: fly puzzle
  1. After you break the first fly statue, you must walk the exact tile path you walked in the previous room. Memorize that floor pattern and repeat it in the next room.
  2. The pattern is randomized each playthrough, so recall the previous room’s tiles as best you can and follow them to the end.
  3. The statue turns more golden with every correct tile. Step on a wrong tile and you have to go back to the start and try again.
  4. On the last tile the fly statue turns fully golden, which means you can break it. Breaking it destroys the final fly wing and unlocks the door to the theater room.
  5. In the theater room, take the Lead Fly from the Julia statue sitting on a chair near the middle.
  6. Go back to the apartment hallway and use the Lead Fly on the locked door with the fly insignia to move on.

Desiderium: Tin Key and Green Candle

Tenebris Somnia: Puzzle Walkthrough
  1. When the final Carnito fight ends, leave the room and take the Tin Key on the wire.
  2. Use the Tin Key on the locked door and go back into the hallway.
  3. Go to the theater room above the spot where the giant fly statue was broken.
  4. Use the Tin Key on the box in the middle of the room to get the Green Candle.
  5. Combine the Lighter with the Green Candle to light it.
  6. Return to the stairwell and climb to the green icon on the wall.
  7. Use the Green Candle on the wall. This opens the second and third floors of the apartment building.

Desiderium: apartment rooms

  1. Go to the second floor of the apartment building and enter Ivan’s apartment.
  2. In the bathroom, interact with the faucet. Then leave the bathroom and interact with the Ivan statue holding the knife in the living room. Later steps depend on this.
  3. In the bedroom, take the Glass Box from the table beside the bed.
  4. Go to the office and interact with the clothes rack to get the Photographs.
  5. Leave the apartment. In the stairwell, break the flooded wall with a melee strike. Enter the bathroom through the hole, then interact with the shower curtain to open a path to the kitchen.
  6. Go back to the stairwell and up to the third floor apartment.
  7. In the office, interact with the plant vase on the table to get the Glass Vase.
  8. Combine the Glass Vase with the Film Canisters in your inventory.
  9. Go to the wall with Roman numerals and read the poems. After each one, use the Photographs on the wall and pick the matching photograph. The answers are in the next section.
  10. Once the poem puzzle is solved, go back to the kitchen on the second floor.
  11. Use the Vase Filled with Chemicals and Blood on the oven, then use the Lighter on the oven to burn what’s inside. Take the Circular Plate from the table.
  12. Leave the kitchen for the office on the same floor and take the Julia Figure. Use the Circular Plate on the chest in the corner to get the VHS Tape. Combine the Glass Box with the Julia Figure.
  13. Go to the third floor living room and use the VHS Tape on the TV. You fight several waves of enemies that you can only see on the TV screen. When they are all dead, take the Ivan Figure from the screen and combine it with the Glass Box.
  14. Go to the second floor hallway and through the blue door on the far left. Inside, go left through the A.S door and keep going left until you find a statue with a hole in its chest.
  15. Use the Glass Box on the statue. It turns gold. Break it.
  16. Then head left down the hallway to the studio light. Use the Vase Filled with Chemicals and Blood on it to get the Auritsatio mixture.
  17. Return to the Ivan statue in the living room of the second floor apartment. Use the Auritsatio on it to get the Lapis Fictus Knife.

Desiderium: poem answers

The first poem decides which four photographs you need. Find how it begins in the table below.

First poem begins withPhotographs
He nestles in her hand…HAND WITH RING, EAR WITH EARRING, SHINY DRESS, PEARLS NECKLACE
“You’re dead,” he tells her, taking her cold hands in hisCROSS NECKLACE, FEET, SUNGLASSES, BLACK VEIL
I’m dreaming…MOUTH WITH LIPSTICK, SUNGLASSES, EAR WITH EARRING, BLACK DRESS
Adorned with the blue of silver…FEET, SHINY DRESS, CLOSED EYES WITH BIG EYELASHES, BLACK GLOVE

Desiderium: Aurifer Knife

Desiderium: Aurifer Knife
  1. With the Lapis Fictus Knife in hand, leave the apartment and take the door back to the stairs.
  2. Go back to the kitchen through the bathroom.
  3. Use the Lapis Fictus Knife on the fusebox in the kitchen. You get the Melanosis Knife.
  4. Go out to the apartment hallway, interact with the elevator door, and climb down the ladder.
  5. A cutscene plays at the bottom of the elevator shaft. When it ends, run for your life from a group of Relicta ghosts.
  6. Sprint left and keep going down the hallway until you reach a door on the right.
  7. Go through it to escape the ghosts, then head all the way right and through another door.
  8. Use the Melanosis Knife on the puddle of mercury on the floor to get the Virdis Knife. Next, interact with the statues on the bed. Then interact with the hole in the wall in the corner, below the health potion.
  9. The TV drops the Lead Key. Pick it up and interact with the hole again to leave. Climb the stairs all the way up, and you come out on the ground floor of the apartment building.
  10. Take the stairway to the second floor apartment door. Go all the way left into the Studio Lobby and use the Lead Key on the door with the symbol.
  11. Past the Lead Key door, keep going north through every door until you reach the locked Hotel door. Use the Virdis Knife on it to start a cutscene. Afterwards you have the Aurifer Knife.

Desiderium: route to the finale

Desiderium: route to the finale
  1. On the way to the end you pick your ending. Kill any Relicta ghost with the Aurifer Knife (one is enough) for the BAD ENDING. Reach the end without killing anyone for the GOOD ENDING. If you save here, you can reload any time to see the other ending.
  2. Once you have chosen, keep heading down through the Hotel doors until you are back in the Studio Lobby.
  3. Leave the Studio Lobby for the apartment building hallway and take the door furthest to the right, which leads to the staircase.
  4. Run up to the third floor and go through the door into the apartment hallway.
  5. Go all the way left and through the door with water leaking out from under it.
  6. Walk left along the street until you reach the SEPTIMO ARTE building, guarded by many Relicta ghosts.
  7. Inside Septimo Arte you are in the final area of the game, and one of the final bosses is close.