Tenebris Somnia Guide

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Tenebris Somnia — Full Guides, Puzzles, Bosses, and Endings

Full walkthroughs, puzzles, bosses, weapons, items, achievements, and combat strategies for Tenebris Somnia (October 2026 Steam release).

Start the full walkthroughI'm stuck on a puzzle
Tenebris Somnia live-action cinematic portrait of the protagonist.

Start with the essentials

Tenebris Somnia pixel-art bathroom scene with the protagonist and a shadow figure.
Full walkthrough — Floor 3 → Aurifer → endingsThe floor-by-floor walkthrough of the entire October 2026 release, from Iván's 3rd-floor apartment to the Aurifer Knife and the ending branch.
Release date
October 16, 2026 (Steam)
Coverage
Full game + standalone demo
Endings
Four (two main + two secret)
Floors
3, 2, 1, Ground, -1, Desiderium, Séptimo Arte

What do you need help with?

Main flow

Full walkthrough

Floor 3 → 2 → 1 → -1 → Desiderium → Aurifer Knife → ending route.

Puzzles

Stuck on a puzzle

Bottle, projector, TV room, elevator, photo, electrical, film canisters, Desiderium poem.

Endings

Choosing an ending

Good, Bad, and the two secret endings — with the Aurifer Knife branch point.

Bosses

Boss strategy

Obscuratus, Fumus, Vitria, Sanguis beast, Sulfur statue, Carnitos, Vorax.

Items

Weapons and items

Wrench, Iron Pipe, Scissors, the Aurifer Knife chain, and every key pickup.

Completion

Achievements checklist

Story, sidetrack (missable), combat, and endings — with the run-conflict notes.

Pick a boss fight

Obscuratus (1st boss)

Candle-room cycle — light, extinguish, damage. Iron and wax achievable with Wrench-only.

Fumus (2nd boss)

Red circles — unequip everything and run them down for the stagger.

Vitria (tentacle grab)

Mash to break the grab, retaliate while staggered, avoid narrow corridors.

Sanguis beast form

Bait the pounce over the planted knife for an instant kill; Bad Puppy via mannequins.

Sulfur statue

Kite the adds onto glowing studio lights, break them for a screen-clearing kill.

Carnitos (3rd boss)

Bottom-right corner blind spot, Butcheress / Valiant Little Taylor strategies.

Vorax (overcharge enemy)

Damage until red, flee the room before the timer, earn He Just Wanted a Hug.

Browse every guide

Walkthroughs

Puzzles

Bosses

Weapons and items

Completion

About this guide and recent updates

Tenebris Somnia is a 2D retro survival horror adventure from Saibot Studios and New Blood Interactive, mixing pixel-art exploration with live-action cinematic sequences. These guides cover the full October 2026 Steam release — the standalone demo, every puzzle, every boss, every weapon and key item, and all four endings.

Recent updates

Tenebris Somnia Achievements — Full List and How to Unlock Each OneTenebris Somnia achievements guide lists every Steam achievement, missable flags, and the unlock step for story, sidetrack, combat, and endings categories.Bottle Puzzle (Glass Liquid Sound) — Floor 3Tenebris Somnia bottle puzzle (Glass Liquid Sound) guide: collect bottles, match the bell's tone with the pitcher using the Wrench, and unlock the USB Cable.How to Beat Carnitos (3rd Boss)Tenebris Somnia Carnito fight guide covers the standard fight plus the Butcheress corner-camp zero-hit run and the Valiant Little Taylor multi-hit stack.Combat Strategy in Tenebris SomniaTenebris Somnia combat strategy covers weapon-aware loadouts, environmental kills, Vorax self-destructs, grapple escapes, and how to plan endings on one save.Tenebris Somnia Demo — What It Covers and How It Differs from the Full GameTenebris Somnia demo walkthrough explains what the demo covers (Floor 3 door puzzle, Obscuratus) and how it differs from the October 2026 full release.
Tenebris Somnia Full WalkthroughTenebris Somnia walkthrough covers every floor in order: Floor 3, Floor 2, Floor 1, Floor -1, the Desiderium dream, and the Aurifer Knife ending route.Tenebris Somnia Endings — How to Unlock All FourTenebris Somnia endings guide walks all four endings: Good (SOLVE ET COAGULA), Bad (MAGNUM OPUS), and the two secret endings VIVUS EX MORTIBUS + RENUNTIATIO.Tenebris Somnia Achievements — Full List and How to Unlock Each OneTenebris Somnia achievements guide lists every Steam achievement, missable flags, and the unlock step for story, sidetrack, combat, and endings categories.Combat Strategy in Tenebris SomniaTenebris Somnia combat strategy covers weapon-aware loadouts, environmental kills, Vorax self-destructs, grapple escapes, and how to plan endings on one save.Item Locations in Tenebris Somnia — Every Key Pickup Grouped by the Puzzle That Needs ItTenebris Somnia item locations guide groups every key pickup by the puzzle that consumes it, covering every floor from Floor 3 to Floor -1 plus Desiderium.Tenebris Somnia Demo — What It Covers and How It Differs from the Full GameTenebris Somnia demo walkthrough explains what the demo covers (Floor 3 door puzzle, Obscuratus) and how it differs from the October 2026 full release.

FAQ

What is Tenebris Somnia?

Tenebris Somnia is a 2D retro survival horror adventure from Saibot Studios and New Blood Interactive, released on Steam on October 16, 2026. It mixes pixel-art exploration and combat with live-action cinematic sequences, and it has four distinct endings.

How many endings does Tenebris Somnia have?

Four endings total. Two main endings (SOLVE ET COAGULA / Good and MAGNUM OPUS / Bad) are reachable in one run each, and two secret endings (VIVUS EX MORTIBUS and RENUNTIATIO) unlock after both main endings have been saved on your Steam profile.

Where can I buy Tenebris Somnia?

Tenebris Somnia is available on Steam (App ID 2121510) from New Blood Interactive, published October 16, 2026.