The TV symbols, elevator colors and fly tiles can change between runs. In Tenebris Somnia, copying a video’s pattern can leave you stuck even when you have the right items. Follow your screen or Old Book for those sequences; use the steps below for the tools, locations and triggers.
Full puzzle and late-game spoilers follow. These solutions cover the apartment, film school and Desiderium progression through the route to the final area. They do not cover optional ending unlocks.
Codes and patterns you need to read in your own game
| Blocker | What to use |
|---|---|
| Apartment TV symbols | Repeat the symbols displayed on your TV, quickly. |
| Bar pitcher | Match its pitch to the bell, then ring the bell again. |
| Projector-room padlock | Charge Ivan’s phone to obtain the code. |
| Elevator | Read the Old Book’s colors from top to bottom. Blue = 3, green = 2, red = 1, white = ground floor. |
| Fly tiles | Repeat the floor pattern from the preceding room. |
| Poem photographs | Read your poem before choosing the photographs. |
Apartment locks and the director’s office
1. Ivan’s study door: make Auritsatio
Take the Wrench from the bathroom, Developing Chemical from the kitchen and Glass from the bedroom nightstand. Use the Glass at the broken bathroom mirror to obtain blood, then combine the blood-filled glass with the chemical.
In the bedroom, open the window covering and strike the boards with the Wrench until sunlight enters. Use the mixture in front of that window to make Auritsatio, then use it at the locked study door. The sunlight step matters: combining the ingredients alone does not finish this Tenebris Somnia puzzle.
2. TV remote: batteries on different floors
Inspect the clothes rack in the second-floor office for the Glove. Use it on the kitchen circuit breaker, then collect a Battery from the stopped washing machine. Reveal the other Battery by interacting with the bathroom’s shower curtain.
Take both batteries to the remote in the third-floor office. Return to the second-floor TV and press the matching floor symbols in the displayed order. Do it quickly, and copy your own TV rather than a fixed sequence.
3. A.S. door: retrieve the trapped key
Collect the blue Triangular Stone from the candle arena after meeting Sanguis. You also need the Scissor Blade from the kitchen and the X-Ray from the apartment’s small bookshelf.
Use the stone at the blue symbol door near the second-floor elevator. Inside, find the A.S. door with red carpet beneath it. Use the X-Ray and Scissor Blade there to retrieve the A.S. Key. Both tools belong at that door; this is not a lock you open with the stone itself.
4. Devora poster: scissors, six pieces, then fire
Take the second Scissor Blade from the director’s desk and combine the blades into Scissors. Cut the six odd-looking cardboard sections from the hallway posters, then return to the damaged Devora poster in the office.
Use a Cardboard Piece to start the reconstruction and fit the pieces together. After the picture is complete, use the Lighter on it to obtain the Bathroom Key. Open the nearby bathroom and take the Mop Handle before leaving.
5. Mop Handle: return to the candle arena
Return to the second-floor apartment bedroom and the candle arena beyond its window. Use the Mop Handle at the square wall fitting near the windows. This Tenebris Somnia item is a mechanism handle, not another tool for the bathroom, and using it leads into a fight.
The bar, projector and dinner table
6. Bell and pitcher: match the sound
Use the blue Triangular Stone at the symbol door left of the third-floor elevator to reach the bar. Collect four Bottles: one outside, one on a table, one behind the counter and one in the bathroom.
Ring the bell to hear the target pitch. Add liquid to the large pitcher with filled bottles, or remove it with empty bottles. Strike the pitcher with the Wrench to test its sound. When the pitches match, ring the bell again; the glass breaks and releases the USB Cable. Tenebris Somnia does not require one universal bottle order here.
7. Projector-room padlock: charge the phone
From the first-floor elevator, enter the door on the right and follow the doorway with light shining through into the dining room. Take the right-hand route to the staircase and climb to the top for the USB Adapter.
Combine the adapter and USB Cable into the USB Charger. Use it beside Ivan’s phone and the wall outlet in the third-floor office. Take the resulting code to the first-floor projector-room entrance on the left. You can recover the code from the Old Book if you forget it.
8. Dinner plates: unlock the Green Square Stone
Collect the first Devora Film Canister from the chest in the second-floor office and play it on the projector. The opened theater box contains the Plate with X. Collect Black Tape from the corridor reached through the dining-room staircase’s first door.
Place the Plate with X in the empty table setting and use the tape on the plate opposite it. Enter the newly opened central doors for the Green Square Stone. Use that stone at the green symbol door in the third-floor apartment, then collect the White Candle inside.
Film-school electricity, camera and elevator
9. Electrical room: repair the circuit
Use the lower-left switch and wait for the gate to rise fully. Switch it again, then cross to the lower-right switch before the gate closes. Avoid the glowing, electrified cables.
Collect the Piece of Cable from the opened box and use it at the upper-left switch. Leave that switch raised, then return to the lower-left switch and activate it again. The central statue collapses, exposing the RCA Cable you need for the camera. Simply flipping every switch is not the full solution to this Tenebris Somnia room.
10. Cinematography class: camera, seed and flowers
Connect the RCA Cable to the camera. Cycle its views until the woman’s outline appears, then stand in the outline to complete it. Change the view again and break the glass in front of the woman with a melee attack.
Cycle the camera until the bird holds a green Copper Seed. Take it upstairs to the green vase in the first-floor corridor, plant it and collect the Flowers. Give the Flowers to the woman, then change the camera view until the scene finishes and the seated statue leaves a Copper Key behind. Use that key on the green door.
11. Dark TV room: lights and the Black Candle
Past the Copper Key door, move north and interact with the televisions to illuminate the room. Watch for the ambush while you turn them on. The completed display records a color pattern in the Old Book.
Take the Black Candle from the desk and combine it with the Lighter. You need both the lit candle and the recorded colors for the next Tenebris Somnia puzzle.
12. Elevator: colors become floor numbers
Use the lit Black Candle inside the elevator. Read your Old Book’s color pattern top to bottom, then visit the corresponding floors: blue is 3, green is 2, red is 1 and white is ground level.
The elevator becomes increasingly corrupted as you follow the sequence. Select -1 when it appears on the panel. Do not reuse somebody else’s four-floor order: Tenebris Somnia changes this pattern between playthroughs.
Film canisters, purified water and the photograph
13. Second canister: retrieve and use the Cow Skull
At floor -1, work through the corridors, break the glass barriers and move the obelisks to reach Ivan’s childhood room. Take the Film Canister beside the Ivan statue and return to the elevator.
Play the second canister in the projector room, then collect the Cow Skull from the newly opened theater box. Return to the dining-room staircase, enter its first doorway and take the corridor left. Use the skull at the white door.
14. Cursed canister: let it send you back twice
In the film school, enter the blue-door room at the left end of the first-floor corridor and interact with the canister on the table. It sends you to the studio lobby. Return and interact with it again.
After the second teleport, speak to Sanguis in the lobby. The repeated displacement is part of the solution in Tenebris Somnia, not a reason to keep trying different inventory items on the canister.
15. Silver Key: fill the Silver Bottle
Exhaust Sanguis’s dialogue, including SPELL, to receive the Silver Key and his notes. Use the key on the cabinet beside the second-floor apartment’s bathroom sink to obtain the Silver Bottle.
Use the bottle at three save points to collect three doses of water. The second-floor bedroom, third-floor office and second-floor director’s office form a usable collection route. These interactions consume those save points, so make your save before collecting their water.
16. Red Pentacle Stone: purify the water
Collect the Red Pentacle Stone after Fumus. Use it to open the third-floor apartment bathroom and collect the Chemicals inside. Also use the stone at the red-symbol door in the second-floor studio lobby to reach the hotel room.
At the window beside the Julia statue, use the bottle containing three water doses. Moonlight turns it into Purified Water. Return to the cursed canister and use that water to obtain the third Film Canister. Sunlight made the opening mixture; moonlight completes this Tenebris Somnia water puzzle.
17. Cold Chisel: open the boarded staircase door
Play the third Film Canister, or the complete movie, at the projector. Collect the Cold Chisel from the final theater box.
Return to the staircase beyond the dining room and use the chisel on the boarded door at the top. Follow with melee strikes to remove the boards and enter the corridor. The chisel prepares the obstruction; attacking finishes the job.
18. Red Lightbulb: use the bloody table
Take the Lightbulb from the developing-room lamp. Beyond the staircase door you opened with the chisel, head right and move the bookcase to expose another room.
Use the bulb on the bloody table inside to make the Red Lightbulb. Prepare for the ambush after leaving, then return the red bulb to the developing-room lamp. This is the darkroom lighting step in Tenebris Somnia, not a color selected through the lamp’s controls.
19. Develop the photo and obtain the Hexagonal Stone
Bring the Photo Roll from the theater lobby, Photo Paper, Chemicals and Red Lightbulb to the film-school developing room. Install the bulb and put the Chemicals in the trays above the lamp.
Use the Photo Roll at the northern central table to obtain the Negative. At the table to its left, use the Negative followed by Photo Paper. Develop the resulting print in the chemical trays. Take the finished Photo to the third-floor bedroom’s picture-frame table, then inspect the opened drawer for the Hexagonal Stone. Use it at the second-floor film-school symbol door after speaking to Sanguis.
Desiderium: school, fly and apartment puzzles
20. Return to the school: invert the cable’s color
Activate the televisions in the TV room and collect the Blue RCA Cable. Take the Black Lightbulb from the blue-door room and install it in the developing-room lamp. The inverted colors turn the cable yellow.
Connect it to the ground-floor production-room camera and interact with the rope. In the electrical section, let the gate rise before switching the current off and reaching the box. Back in the former cursed-canister room, break the glass and use the Apartment Key on the purified water. Return downstairs to the statues, collect the Red Candle from Julia and light it. Use it at the red wall symbol in the apartment stairwell. Tenebris Somnia uses a candle here, not a door key.
21. Fly tiles: finish the pattern before striking
After the first fly statue, repeat the floor pattern from the preceding room. Step on each required tile; a wrong tile sends you back to the start. The statue becomes increasingly gold as you progress.
When it is fully golden, break it. Collect the Lead Fly from the theater’s seated Julia statue, then use it at the fly-insignia door in the apartment hallway. Your own room supplies the pattern for this Tenebris Somnia puzzle.
22. Tin Key: use it again for the Green Candle
Use the Tin Key to unlock the exit, but do not treat that as the end of its purpose. You still need it for a second lock before you can return to the upper apartments.
Return to the theater above the broken giant fly and use the Tin Key on the central box. Take the Green Candle, light it with the Lighter and use it at the green stairwell symbol. You can now reach the second- and third-floor apartments.
23. Apartment items: assemble the Lapis Fictus chain
In the second-floor apartment, turn on the bathroom faucet and inspect the knife-holding Ivan statue. Collect the Glass Box in the bedroom and Photographs from the office clothes rack. Break the flooded stairwell wall, enter the bathroom and move the shower curtain to expose the kitchen route.
In the third-floor office, take the Glass Vase from the plant container and combine it with the Film Canisters. Complete the poem puzzle below, then heat the vase’s chemical-and-blood contents in the second-floor kitchen oven using the Lighter. Take the Circular Plate and use it on the second-floor office chest for the VHS Tape; collect Julia’s figure there too.
Play the tape on the third-floor TV. Fight the enemies using their TV-screen positions and collect Ivan’s figure when the encounter ends. Put both figures in the Glass Box. Use the filled box on the hollow-chested statue beyond the second-floor A.S. door, then break the golden statue. Use the vase at the studio light for Auritsatio and apply it to the second-floor Ivan statue to obtain the Lapis Fictus Knife.
24. Poems: match the photographs to your text
Read the poems beside the Roman numerals in the third-floor apartment. Use the Photographs at that wall to assign the matching images. The opening poem determines which set belongs in the frames, so do not copy an unrelated arrangement from another Tenebris Somnia run.
The photographs depict details such as jewelry, clothing and body parts. Match those details to the poem’s descriptions rather than selecting pictures by their position in the inventory.
Forge Aurifer and reach the final area
25. Knife transformations: electricity, mercury, hotel
Use the Lapis Fictus Knife at the kitchen fusebox to obtain the Melanosis Knife. Descend the elevator shaft and escape the ghosts into the rooms beyond. Use the knife on the mercury puddle for the Virdis Knife.
Inspect the bed statues, then try the wall opening. Collect the Lead Key dropped by the TV and leave through the opening. Return to the second-floor studio lobby and use that key at the symbol door. Continue north through the doors until you reach the locked hotel door. Use the Virdis Knife there to obtain Aurifer after the scene. Each transformation in Tenebris Somnia has a specific target; you cannot combine the knife stages in your inventory.
26. Finale route: back through the lobby to Septimo Arte
With Aurifer obtained, your treatment of the Relicta on the exit route affects the ending branch. Keep them alive if you want the no-kill branch; attacking them with Aurifer can take you toward a different ending.
Return through the studio lobby to the apartment building and climb to the third floor. Take the street exit and head toward Septimo Arte. That building is the destination after the knife chain, not another apartment puzzle.
Official game page: Tenebris Somnia on Steam