The achievement list of The Incident at Galley House doubles as a map of its systems: rooms, scenes, the timeline, the power supply and the hint function all appear in it. This page groups the 11 achievements with visible conditions, lists the 4 hidden ones by name only, and suggests an order that avoids spoilers. Tool descriptions come from Game Informer and Adventure Game Hotspot; conditions come from the official Steam list.
1 The investigation tools
| Tool | What it does | Source |
|---|---|---|
| The machine | Plays echoes of the past when death is imminent | Adventure Game Hotspot |
| Knobs and switches | Enter the code sequence with the mouse | Adventure Game Hotspot |
| Timeline | 26 segments; markers and deaths can be noted | Game Informer, achievements |
| Notepad and search | Take notes and find mentions across scenes | Game Informer |
| Help | Progressive hints with no penalty | Adventure Game Hotspot |
2 Exploring the house
Two achievements concern the house itself. Full House is awarded for unlocking every location in Galley House, and House Tour for watching a scene in every room. Together they show that locations are unlocked progressively and that every room holds at least one scene. If a room still has no scene in your notes, that gap is a clue about where to look next.
3 All 15 achievements
| Group | Achievements and conditions |
|---|---|
| Scenes | Seance (view your first scene), Spectronoeticist (find all of the scenes), Still Alive (try to view a scene containing only living people) |
| House | Full House (unlock every location), House Tour (watch a scene in every room) |
| Power | Machine Supervisor, Researcher, Technical Engineer (restore the power the first, second and third time) |
| Deduction | Death Note (mark a death on the timeline), Persistence (try the same incorrect code twice) |
| Help | TYPE HE-L-P (ask the machine for help) |
| Hidden | Not Over Yet, A Shocking Revelation, Hallucination, Inciting Incident (conditions not shown) |
The hidden names hint at story moments, which is exactly why this page does not try to explain them. They should unlock as the mystery unfolds.
4 Achievements to do on purpose
Most achievements come from simply playing, but three reward actions a careful player might avoid. None of them require spoilers, and none are described as missable, so you can do them whenever you like.
5 Finding every scene
Spectronoeticist, for finding all of the scenes, is the completion achievement. Without spoiling how many scenes exist, a few habits make it manageable.
6 A spoiler-free order
View your first scene, mark a death on the timeline, and try the three deliberate achievements when convenient.
The three power achievements will come as outages happen. Keep unlocking rooms.
Check every room for a watched scene and fill the remaining gaps on the timeline.
The hidden achievements should follow the story; find all scenes for the last one.
The 15 achievements cover scenes, rooms, the power supply, deduction and hints, with 4 hidden story achievements. Full House and House Tour show that rooms unlock over time and each holds a scene. Persistence, Still Alive and TYPE HE-L-P reward actions you might otherwise avoid, and none are described as missable. For Spectronoeticist, use empty rooms and unexplained stretches of the timeline to find the scenes you are missing.
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