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-_sxZ6npVgZE.webp" video: "_sxZ6npVgZE"
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 walkthrough below presents the scenes in chronological order, which is the recommended approach for first-time players. Chronological order provides the most coherent narrative experience and ensures you encounter foreshadowing and reveals in the intended sequence.
However, you are not required to enter codes in order. The game accepts any valid code at any time, so if you prefer a character-based or location-based approach, you can rearrange the sequence. The only restriction is that some scenes require prerequisite discoveries (such as labeling a location) before their codes will work.
The Three-Act Structure
The Part 1 scenes naturally divide into three acts:
- Act 1 (Scenes 01-06): Arrival and introduction — characters, relationships, and the setting are established
- Act 2 (Scenes 07-14): Escalation and discovery — tensions rise, the body is found, and the social order collapses
- Act 3 (Scenes 15-26): Crisis and resolution — the deadly events unfold and the final confrontation occurs
This three-act structure is reinforced by the power restoration mechanics — each act ends with a power failure that creates a natural breakpoint. Use these breakpoints to review what you have learned and make any deductions you are confident about.
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
Beyond the main 26 Part 1 and 6 Part 2 scenes, The Incident at Galley House contains several hidden scenes and special codes that are required for the Spectronoeticist achievement and provide additional context for the meta-plot.
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. The timestamp 00 is outside the normal 01-26 range, which makes this code extremely non-intuitive — most players never think to try a zero timestamp. The character number 0 is also unusual, representing a special entity rather than a regular character.
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 — even as your very first code. The scene breaks the fourth wall in a way that rewards players who know the game's history while still being accessible to newcomers.
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. The Hallucination scene is one of the most atmospheric in the game and provides important context for the supernatural forces at Galley House. See the achievement guide for the exact code.
Person +64 Scene
The code for Person +64 uses a character number outside the 1-16 range. This is a deliberate puzzle designed to test whether players think beyond the obvious character numbering. The scene provides additional meta-plot context and is required for the Plus 64 achievement.
Person K Scene
Person K uses a letter instead of a number in the character position. This breaks the standard numeric format and is extremely non-intuitive. The game accepts this letter-based input, but most players never think to try it. The Person K scene reveals important information about Katherine Beaumont and her connection to the Galley family. See the character identities guide for more about Person K.
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.
Investigation Workflow Tips
Keep a Code Log
As you enter codes, keep a log of which ones worked and which did not. This prevents you from re-entering codes and helps you identify patterns. A simple text document or spreadsheet works well.
Use Hints at Decision Points
The game has natural decision points where you must choose what to investigate next. At these points, if you are unsure where to go, use the hint system rather than entering random codes. The hints will point you toward the most important missing content.
Revisit Scenes After Major Revelations
After major revelations (the body discovery, the final confrontation, the meta-plot resolution), replay earlier scenes with the new context. You will notice foreshadowing and connections that were invisible on first viewing.
Balance Past and Present
Do not complete all Part 1 scenes before starting Part 2. Instead, alternate between the timelines as content becomes available. The information from both timelines reinforces each other, making deductions easier.
FAQ
Can I complete the game using only this walkthrough?
Yes. This walkthrough provides the code for every scene and guidance for each power restoration. However, the walkthrough does not provide deduction answers — those you must determine yourself by watching the scenes.
How long does a guided playthrough take?
Following this walkthrough, you can complete the game in approximately 6-8 hours. Without a walkthrough, expect 8-15 hours depending on your investigation efficiency.
What if a code from this walkthrough does not work?
Check that you have labeled the location in the code. You cannot use a location code until you have discovered and labeled the room. Also verify the code format (two-digit timestamp, two-letter location, character numbers separated by hyphens).
Do I need to enter codes in the order listed?
The order in this walkthrough is recommended for the best narrative experience, but you can enter codes in any order. If you prefer a different approach (character-based or location-based), you can rearrange the order.
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. For the official game page, visit the Steam store.