Tenebris Somnia · Ending routes
How to get all four Tenebris Somnia endings
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The first two endings split after you receive Aurifer: spare every Relicta for Ending 1, or kill at least one for Ending 2. Preserve a save before that choice. The documented secret route starts on a new run after both endings, with the Bible on the opening table.
PC full release · Research checked October 22, 2026 · Major ending and secret-route spoilers
Save before using Aurifer on an enemy
Getting the yellow knife is not itself the bad-ending choice. Killing a Relicta with it is. The puzzle guide explicitly says one kill is enough; you do not need to clear the building to switch branches. Killing every ghost is a separate achievement goal.

| Ending achievement | Action after obtaining Aurifer | What to preserve |
|---|---|---|
| SOLVE ET COAGULA — Ending 1 | Reach the finale without killing a Relicta. | A save before the first possible kill. |
| MAGNUM OPUS — Ending 2 | Kill at least one Relicta, then finish the other finale. | The same earlier save if you still need Ending 1. |
| VIVUS EX MORTIBUS — Ending 3 | Complete the new-run Bible and three-cross route. | Both ordinary ending completions; avoid resolving its puzzle checkpoints normally. |
| RENUNTIATIO — Ending 4 | Leave through the opening building entrance using the Apartment Keys. | A new run. Renka documents doing this after the first two endings. |
For Ending 1, route around the ghosts. If one grabs Julia, mash your configured interact button to break free. The documented condition concerns kills, so do not assume that merely taking damage has ruined the branch.
Reach Séptimo Arte after the choice
Travel down through the hotel doors to the Studio Lobby, leave for the apartment hallway, and take the far-right stairwell door. Climb to Floor 3, cross the hallway to the far-left door with water leaking from it, then go left along the street to Séptimo Arte. Continue through the appropriate final encounter to register the ending; arriving at the entrance alone is not completion.

Ending 3: bring the Bible to three unfinished puzzles
After completing Endings 1 and 2, begin a fresh run and take the Bible from the table in the opening area. This route changes puzzle solutions. Use the Bible before finishing each of the following checkpoints through its normal answer.
- Floor 2 apartment TV: use the Bible on the static television. Follow the revealed instruction: start at the Male/Mars symbol and traverse the symbols counterclockwise six times. Collect the inverted red cross.
- Community Center combination lock: use the Bible before entering the normal projector-area combination. Hakita records 6666; Renka directs players to the combination shown in the Bible cutscene. Check that scene, enter its code and collect the cross.
- Floor 0 camera room: bring the yellow cable to the room with the shotgun-bearing figure, use the Bible, connect the cable and cycle the camera. Renka records six cycles; Hakita describes cycling until enemies appear, then defeating them. Finish that encounter and collect the third cross.

With three crosses, take the blue door on Floor 3, left of the elevator, to the street. Hakita identifies the cross-placement wall on the right. Place the crosses and enter the newly available door. This guide stops before describing the secret scene itself.
If the secret route does not start
Check the opening table on a genuinely new run after both ordinary endings. A reload of the late Aurifer save is useful for Endings 1 and 2, but does not substitute for the fresh opening required by the Bible route. If a cross is missing, inspect which of the three puzzles you finished normally before consulting the Bible.
For Ending 4, turn back at the start and use the Apartment Keys to leave the building. The sources differ in how explicitly they describe its prerequisites, so the dependable completion order here is the one Renka documents: obtain Endings 1 and 2 first, then make the short exit run.
Sources and version
Source-based walkthrough for the PC full release, checked October 22, 2026. Route reference: Metadata Rosenberg and Dalia’s Puzzle and Boss Guide, sections 25–26 for Aurifer and the ordinary finale.. Renka’s original achievement guide supplies the ending names and Bible checkpoints; Hakita’s four-ending guide independently confirms the ordinary split and secret route. The camera-room wording differs between those player records, as noted above. Gameplay excerpts are credited in their captions. Check the official update feed if your installed version behaves differently.