Tenebris Somnia · Main route
Follow the main progression from the apartment to the film school, the changing building and the final confrontation, with puzzle and combat checkpoints in order.
Official game analysis · Updated 17 October 2026

A progression guide to the main obstacles. Open one stage at a time; it focuses on the route and puzzle dependencies rather than every optional pickup.
1. The apartment and the sealed study
Reveal spoilers
Inspect the kitchen, bathroom and living room. Read Old book, check the burned film and collect Glass, Developing chemical and Wrench. The opening seal is an environmental puzzle: follow the book’s acid, iron and sunlight clues. The bathroom mirror event supplies blood; the boarded window must admit enough sun before the mixture works.
Milestone: Open the sealed study and enter the altered building.
2. Learn the rules of the altered building
Reveal spoilers
Explore the study and bedroom, collect the film and weapon found in the chest, and speak to Sanguis. Follow his explanation of the room reached through the window. Find a lever for the blind: closing it makes the enemy vulnerable. Inspect the room again after the fight.
Milestone: Clear the darkened room and finish the bedroom conversation.
3. The film company and the cinema
Reveal spoilers
At the film company, investigate the locked office and reconstruct the damaged poster. The completed image’s flame is a clue to the next interaction. Follow the phone and room clues for locks rather than guessing codes. At the cinema, screen each recovered canister and check the boxes beside the screen after each showing.
Milestone: Recover the screening rewards and pursue the remaining canisters.
4. Return to the film’s sets
Reveal spoilers
Use DEVORA’s scenes to interpret the dining room and the recreated sets. Replace missing props before deciding a puzzle is complete. Bring the stones you obtain with you. When a canister remains out of reach, the obstacle may be a spell rather than a missing key.
Milestone: Resolve the set puzzles and identify the object that needs purification.
5. The school and the photographic darkroom
Reveal spoilers
Search the school’s classrooms and storage spaces. In the darkroom, arrange red lighting, develop the roll into a negative, print it with photo paper and then use the chemical trays. These are separate stages. Continue toward the upper set and mirrors, preparing for the encounters before proceeding.
Milestone: Finish developing the photo and progress through the school confrontation.
6. A changed building and the apartment key
Reveal spoilers
After the major set sequence, revisit earlier rooms instead of following the old route blindly. The script classroom draws attention to Apartment key. Read the recovered memories. Return to the analysis classroom and reach the remaining pool of purified water behind the glass; break the glass with a suitable tool, purify the key and leave it there. This reuses the water from the earlier canister puzzle. The charged key affects what Julia can perceive.
Milestone: Resolve the key’s influence and reread the newly clear memories.
7. Prepare the final weapon
Reveal spoilers
Follow the book’s Aurifer instructions. Obtain Lapis Fictus Knife from the statue using the prepared mixture. The film, vase, blood, oven and sunlight belong to this later preparation, not the opening glass recipe. Then treat the blade with electricity, mercury in the deepest area, and finally moonlight, in that order.
Milestone: Complete the blade’s three transformations.
8. Before the final confrontation
Reveal spoilers
Keep a save before using the completed weapon on mercurial Relicta. The game has different final conversations depending on whether these beings have been killed. Follow the last route to Vitria and the theater; story explanations and the branch distinction are in the endings guide.
Milestone: Reach the final confrontation and review your ending.
Preserve both ending routes
Save before using the completed Aurifer on any mercurial Relicta. After Endings 1 and 2 register, use a fresh run for the Bible route or the immediate lobby exit.
Continue exploring
Official game page · Andrés Borghi / Saibot Studios / New Blood Interactive