id: "complete-walkthrough" slug: "complete-walkthrough" order: 1 title: "The Incident at Galley House Complete Walkthrough — Step by Step" description: "Complete step-by-step walkthrough for The Incident at Galley House covering all 100+ memory scenes across both timelines. Find every scene code and solve the mystery." keywords: ["The Incident at Galley House walkthrough, complete walkthrough, step by step, all scenes, solve mystery"] category: "walkthrough" date: "2026-07-15" lastModified: "2026-07-16" image: "/images/video-UTDcP5s5gGQ.webp" video: "UTDcP5s5gGQ"
Complete Walkthrough for The Incident at Galley House
This walkthrough guides you through every memory scene in The Incident at Galley House, from the first code you enter to the final meta-plot revelation. It covers both Part 1 (Past, 1936) and Part 2 (Present Day), including hidden scenes and achievement-related codes. If you want to experience the game without spoilers, we recommend using the beginner guide instead and only referring to this walkthrough when you are truly stuck.
Part 1 — Past (1936)
The past timeline chronicles the fateful gathering at Galley House in 1936. These 26 main scenes reveal the characters, their relationships, the discovery of the body, and the escalating deadly events.
The Arrival
Enter code 01-EN-1-11. This scene shows the initial arrival at Galley House. You meet John Hobbes (Person 1) and Damian Pike (Person 11) as they enter through the Entrance. Notice the atmosphere — the house is imposing, the guests are uneasy, and the invitations that brought them here are clearly unusual. This scene establishes the tone for everything that follows.
Enter 02-LI-1-2-3. The Living Room scene introduces Annie (Person 2) and Oswald (Person 3). The conversation reveals the social dynamics among the guests. Hobbes appears to be a leader figure, while Annie and Oswald have a more contentious relationship. Listen carefully to voice acting — it provides the first clues about character identities.
The First Evening
Enter 03-QU-4-5. Victoria (Person 4) and Edmund Galley (Person 5) have a private conversation on Quail Lane. This scene reveals the connection between the Galley family and the events. Edmund's behavior suggests he knows more than he is sharing. Victoria's codename, Raven, becomes appropriate as you learn more about her character.
Enter 04-ST-1-6. Hobbes and Martha (Person 6) discuss the invitations in the Study. Martha's codename is Hedgehog, reflecting her protective nature. The conversation reveals that the invitations were deliberately designed to bring this specific group together, raising questions about who orchestrated the gathering and why.
Enter 05-KI-2-7 and 06-DI-3-8-9. The Kitchen and Dining Room scenes introduce Harry Thornton (Person 7, Cod), Helen Dauer (Person 8), and Eve Dauer (Person 9, Goose). The dinner scene is particularly important — it establishes the social hierarchy among the guests and reveals tension between Oswald and Helen.
Escalating Tensions
Enter codes 07-BI-5-10 through 12-ED-5-9. These scenes show the escalating tensions as the evening progresses. Tony (Person 10) is introduced in the Billiard Room. The Chapel scene (08-CH-4-11) introduces supernatural elements that become increasingly significant. Eddie's Room (12-ED-5-9) reveals a vulnerable moment between Edmund and Eve.
The Discovery
Enter 13-AT-1-4. This is the pivotal scene where the body is discovered in the Attic. Hobbes and Victoria find the body, and the nature of the discovery sets the tone for the rest of the investigation. The identity of the body is one of the game's most important deductions.
Enter 14-DI-1-2-3-4-5. The group's reaction to the body discovery. This scene is chaotic and emotional, with multiple characters reacting simultaneously. The Living Room becomes a crucible as accusations begin to fly.
The Deadly Night
Enter codes 15-KI-7-10 through 22-ST-1-11. These scenes chronicle the deadly events that follow the body's discovery. Characters die in various ways — some are shown directly, others are implied through absence and dialogue. Pay close attention to the order of deaths and the relationships between victims and their causes.
The confrontation between Hobbes and Damian in the Study (22-ST-1-11) is one of the most dramatic scenes in the game. It reveals the depth of the conspiracy at Galley House.
The Final Scenes
Enter 23-QU-4-7, 24-CH-5-6, 25-WI-9-11, and 26-LI-1-2-3-4-5-6-7-8-9-10-11. The final scenes of Part 1 bring the remaining characters together for a climactic conclusion. Eve and Damian's scene in Wintercote (25-WI-9-11) is particularly important for confirming Eve's survival. The final Living Room scene (26-LI) is the culmination of the past timeline.
Part 2 — Present Day
The present-day scenes connect the past events to Reya's investigation at D&M. Enter the Part 2 codes 27-DI-12 through 32-LI-12-13-14-15. These scenes are crucial for the meta-plot deduction and reveal the true relationship between D&M, the memory machine, and the events at Galley House.
Hidden Scenes and Achievement Codes
Scene 00
Enter 00-EN-0 for a mysterious prologue scene that predates the main timeline. This scene provides context about the supernatural elements and the origin of the memory echoes.
TYPE HELP
Enter TYPE-HELP into the machine. This meta-scene is a direct reference to the original Type Help browser game and awards the TYPE HELP achievement. It can be entered at any time.
Hallucination Scene
The Hallucination achievement requires a specific hidden code. Finding this code involves paying attention to subtle clues in certain scenes — particularly those involving the supernatural elements of the Chapel. See the achievement guide for the exact code.
Spectronoeticist (All Scenes)
To earn this achievement, you must view every single scene in the game. Cross-reference your progress with the complete scene codes list and ensure you have viewed all main, hidden, and optional scenes.
Power Restoration Walkthrough
The machine loses power three times during the investigation. Each restoration requires:
- First restoration — Examine the machine's physical components and follow the basic restart sequence
- Second restoration — Locate additional power resources within the D&M facility using clues from earlier scenes
- Third restoration — The most complex restoration, tied to the story's climax. Follow the narrative clues carefully
Post-Credits Content
After the main story concludes, continue investigating to unlock the Not Over Yet achievement. There is additional content that reveals more about the meta-plot and provides closure for the present-day characters.
This walkthrough covers the critical path through the game. For more detailed information about specific scenes, character identities, or location codes, visit the relevant pages on this wiki.