Start at Ivan's third-floor apartment and prepare Aurisatio to dissolve the red studio seal. Each objective below links to the page that solves it, from Ivan's studio recipe to the final confrontation, so you can use this Tenebris Somnia guide to jump straight to where you are. For the TV door, return to the studio remote with both batteries; for later filming puzzles, collect the reward beside the movie screen after each screening.
Walkthrough: Every Chapter in Story Order
The Tenebris Somnia walkthrough lays out the whole route, from Ivan's studio to the final confrontation. Each chapter has its own page:
- Ivan's apartment walkthrough: collect the wrench, refrigerated developing chemical, and bedroom glass. Add Julia's own blood and expose the mixture to sunlight to make Aurisatio, then dissolve the studio seal and collect the green candle.
- Second floor walkthrough: use the Triangular stone at matching symbol doors, retrieve the AS key from beneath its door, and rebuild and burn the Débora poster for the Bathroom key.
- TV puzzle: find both batteries, install them in the remote attached to Ivan's third-floor studio table, and press its button. Back downstairs, step on the floor tile matching each symbol the TV shows.
- First floor walkthrough: match the bar apparatus's sound to obtain the USB cable, combine it with the USB Adapter, and charge Ivan's phone for projector-room code 5160. Screen the first film, collect the Plate with an X, and solve the dining-table puzzle for the Square Stone.
- Film school walkthrough: enter Floor 0 with the lit White Candle, repair the electrical puzzle for the RCA cable, and complete Ivan's camera scene. Use the Black Candle to unlock Floor -1, collect the film beside young Ivan, and screen it for the skull that opens the hooked door.
- Agonal stone walkthrough: restore the photograph to the third-floor bedroom frame, collect the stone from the drawer, and open the sealed entrance near Ivan. Beat Vitria in the mirror, then come back here after Julia's Desiderium for the Sanguis chase.
- Julia's Desiderium walkthrough: turn the blue RCA cable yellow, recover Julia's belongings, and purify the enchanted apartment key. Leaving it behind restores memories and makes the old book readable; take the Red candle from the script-table memory and the Lead fly from the screening-room statue.
- Aurifer walkthrough: prepare Aurisatio with Julia's blood and burned developed film to free the Lapis Fictus knife from Ivan's statue. Treat the weapon with electricity, mercury from Putrefactio, and finally moonlight to forge the golden blade.
- Final boss guide: check the Relicta Ghost choice before entering Septimo Arte. Killing any ghost leads to Hermes; sparing every ghost leads to Lacuna. Accept Vitria's spell to cross the sealed door, and retreat as far as possible during Hermes's inhale.
Puzzle Solutions
Puzzle solutions has every puzzle answer in story order, from the Aurisatio recipe and the TV puzzle to the projector room code and the Aurifer recipe, each linked to the chapter that explains it.
Bosses
Bosses gives the one trick for Vitria, Sanguis and Hermes, plus how to end up fighting Lacuna instead.
Collectibles
Collectibles covers all three Débora film cans, the star key locks and where to unscrew the Pipe.