Tenebris Somnia walkthrough

Part 1 — the apartment

Floor 3 starts with the Old Book and the wrench in the bathroom tub. The first creature dies in three or four wrench hits. The study door is sealed in red wax.

• Study seal: glass, developing chemical, blood from the mirror, then sunlight. The guide name for the result is Auritsatio.
• Floor 2: glove from the coat rack, kill the breaker, two batteries, then the Floor 3 remote.
• TV symbols on Floor 2 are random. Press the floor buttons the remote points at.
• Sanguis talks you into the candle arena for a blue triangular stone, then the blue door. Scissor blade plus the X-ray yields the A.S. key.
• Combine two scissor blades into scissors, collect six cardboard pieces, finish the Devora poster, burn it with the lighter, take the bathroom key and the mop handle.
• Use the mop handle on the candle-arena wall. The first boss is called Candlehead in walkthroughs and Obscuratus on the Steam achievement. Blow the candles out before the gun does anything.

Part 2 — canisters and the film school

Names for this building are not consistent. Into Indie Games and iampanax both pass through a projection room, a theater, and a floor labeled −1.

• Caput Mortuum bar: four bottles, match the bell tones by dropping bottles into the glass jar, then ring the bell to break it. You get the USB cable.
• USB cable plus adapter charges Iván’s phone. The password is already in the Old Book.
• Devora canister 1 is in a Floor 2 office box. Screen it. The left theater box opens. Plate with X, black tape, green square stone, green door, white candle.
• Timed double-switch room: piece of cable, then RCA cable.
• Film-class camera: pose the silhouette, break the glass, plant the copper seed, give the flower to the statue, take the copper key from the fallen figure.
• TV room: mash the interaction in the dark. A Vorax ambushes you. The Old Book stores the color order. Black candle and lighter.
• Elevator: blue is 3F, green is 2F, red is 1F, white is 0F, walked top to bottom from the Old Book. Floor −1 appears. The order is random.
• Floor −1 is Iván’s childhood room and canister 2. Screen it. The second theater box gives the cow skull and the white door.

Part 3 — silver bottle, moonlight, Aurifer

The silver bottle is the point where a careless route deletes your checkpoints. Gamer Social Club suggests the Floor 2 bedroom, the Floor 3 office, and the Floor 2 director’s office, and tells you to keep the film-school save.

• Cursed film: blue door on the film-school ground floor, two teleports, Sanguis by the statue. Choose SPELL. Silver key.
• Silver bottle from the Floor 2 bathroom cabinet. Draw water at three save points. Those points stop working. Beat Fumus for the red pentacle stone.
• Use the stone on the Floor 3 bathroom door and the white door with the red mark in the Floor 2 lobby. At the hotel window, by Julia’s statue, the bottle takes moonlight and becomes purified water. Cleanse the cursed film. That is canister 3.
• Screen canister 3. The last theater box holds the cold chisel for the roof boards.
• Darkroom: lightbulb, then push the bookshelf in the top hall, blood table, red bulb. Red bulb plus chemicals, photo roll, negative, and paper. The photo opens a Floor 3 drawer: hexagonal stone, then the door by Sanguis on Floor 2.
• Desiderium TV room: blue RCA cable, black bulb reverses the colors, yellow cable to the camera, light the red candle, red marks on the wall.
• Fly puzzle: two floors of tiles must match. The order is random. Break the gilded fly for the lead fly and the fly door. Tin key and green candle open Floors 2 and 3.
• Poem photos on the Roman-numeral wall are random. Match photographs to each verse.
• Kitchen flask, circular plate, swap the VHS. The tape reveals enemies that only exist on the television. After the fight, the Ivan figure. Combine toward the A.S. door, smash the gold statue, studio lights plus the flask, Auritsatio on Ivan’s statue, Lapis Fictus knife.
• Lapis Fictus into the fuse box, Melanosis knife, down the elevator shaft, mercury pool, Viridis knife, lead key from the wall hole. Lead key in the studio lobby. Viridis knife on the hotel door, bathed in moonlight, three steps. That is Aurifer.

Part 4 — the fork

Save at the point beside the forge. One clear of the Relicta ghosts leads to Lacuna and SOLVE ET COAGULA. Killing at least one, the fleeing ghost south of the forge is the usual pick, leads to Hermes and MAGNUM OPUS. Load the save to take the other fight in the same file.

Ending 3 (VIVUS EX MORTIBUS) and ending 4 (RENUNTIATIO) are named on Steam and appear in the iampanax ending video. Their rules are not written down anywhere I could verify on October 18, 2026. The video’s third path includes a boss labeled Amy. Do not treat that as a confirmed unlock recipe.

Keep reading

Sources

• Gamer Social Club — 26 steps
• Into Indie Games part 1 — Apartment opening
• iampanax full run — 5:22:30, uploaded October 16, 2026