id: "achievement-guide" slug: "achievement-guide" order: 1 title: "The Incident at Galley House Achievement Guide — All 15 Achievements Unlocked" description: "How to unlock all 15 achievements in The Incident at Galley House including 5 hidden ones. Spectronoeticist, Hallucination, Inciting Incident, and more." keywords: ["The Incident at Galley House achievements, all achievements, hidden achievements, Spectronoeticist, Hallucination, Full House"] category: "achievements" date: "2026-07-15" lastModified: "2026-07-16" image: "/images/hero.webp" video: ""
Complete Achievement Guide for The Incident at Galley House
The Incident at Galley House has 15 Steam achievements, including 5 hidden ones. Some unlock naturally through story progression, while others require specific actions like finding hidden scenes, completing all content, or discovering special codes. This guide covers every achievement with detailed unlock instructions.
Story Achievements
These achievements unlock through normal story progression. You cannot miss them if you complete the game.
Seance
How to unlock: View your first memory scene.
This is the first achievement most players earn. Simply enter any valid code into the memory machine and watch the resulting scene. The earliest code you can enter (01-EN-1-11 or similar) will trigger this achievement.
A Shocking Revelation
How to unlock: Uncover a major truth about the incident.
This unlocks at a specific story milestone when you discover a significant plot revelation. It happens naturally as you progress through the main scenes. You do not need to do anything special — just keep investigating and the revelation will come.
Still Alive
How to unlock: Identify a character who survived the incident.
You must correctly identify at least one character whose fate is "Alive" rather than "Deceased." Eve Dauer (Person 9, Goose) is the most obvious surviving character. When you confirm her identity and fate on the deduction board, this achievement unlocks.
Deduction Achievements
These achievements are tied to the deduction system.
Death Note
How to unlock: Mark a character's death on the timeline.
When you determine that a character has died, mark their death on the chronological timeline. The first time you do this, you earn the Death Note achievement. You do not need to be correct — simply marking any death triggers the achievement.
Machine Supervisor
How to unlock: Restore the machine's power for the first time.
The first time the machine loses power, find the correct procedure to restore it. The solution involves examining the machine's physical components and following a specific sequence. See the beginner guide for power restoration tips.
Technical Engineer
How to unlock: Restore the machine's power a second time.
After the second power loss, restore power again. This restoration is more complex than the first and requires you to locate additional resources within the D&M facility.
Researcher
How to unlock: Unlock a significant number of memory scenes.
This achievement is cumulative — you earn it after unlocking a threshold number of scenes. Keep entering codes and discovering new scenes throughout your investigation. You do not need to find every scene, just a substantial portion.
Exploration Achievements
House Tour
How to unlock: Discover all 16 locations in Galley House.
You must discover and label every room. This requires entering codes that reference all 16 location codes. See the location guide for the complete list of room codes and how to find them.
Secret Achievements
TYPE HELP
How to unlock: Enter the TYPE HELP code into the machine.
This is a reference to the original browser game that inspired The Incident at Galley House. Type "TYPE HELP" as a code into the machine. This triggers a special meta-scene and awards the achievement. It can be done at any point during your investigation.
Full House (Hidden)
How to unlock: Label all 16 locations in Galley House.
Similar to House Tour but specifically requires correctly labeling each location with its two-letter code. If you have earned House Tour, you likely have the information needed for Full House. Confirm each label on the deduction board.
Hallucination (Hidden)
How to unlock: View the hidden hallucination scene.
This requires entering a specific hidden code that is not part of the normal scene sequence. The code references a supernatural or psychological scene that exists outside the main timeline. Finding this code requires thorough investigation and attention to subtle clues in certain scenes. Check the scene codes page for the specific code.
Inciting Incident (Hidden)
How to unlock: Discover the event that started everything.
This achievement is tied to the meta-plot. You must uncover the specific event or revelation that sets the entire incident in motion. It requires connecting information from both timelines and making the right deduction about the overarching cause.
Not Over Yet (Hidden)
How to unlock: Reach the secret post-credits content.
After completing the main story, do not stop playing. Continue investigating after the apparent conclusion to discover additional content. This achievement rewards players who keep exploring beyond the expected endpoint.
Completion Achievement
Spectronoeticist (Hidden)
How to unlock: View every single memory scene in the game.
This is the hardest achievement in The Incident at Galley House. You must find and view all scenes including the main sequence, hidden scenes, and special scenes. This includes:
- All 26 Part 1 (Past) scenes
- All Part 2 (Present) scenes
- The TYPE HELP meta-scene
- The Hallucination scene
- Scene 00 (the prologue)
- Any other hidden or optional scenes
The best approach is to systematically work through the complete scene codes list and check off each scene as you view it. The keyword search tool can help you find scenes you might have missed.
Achievement Roadmap
For efficient completion, follow this order:
- Play through the main story — This earns Seance, A Shocking Revelation, Still Alive, Death Note, Machine Supervisor, Technical Engineer, and Researcher
- Discover all 16 locations — Earns House Tour and Full House
- Enter TYPE HELP — Earns TYPE HELP achievement
- Find all hidden scenes — Earns Hallucination
- Solve the meta-plot — Earns Inciting Incident
- Explore post-credits — Earns Not Over Yet
- View every scene — Earns Spectronoeticist (the final achievement)
This roadmap minimizes backtracking and ensures you earn achievements in a natural progression. For more help with specific scenes, visit the walkthrough or scene codes pages.