How to Unlock Achievements — The Incident at Galley House
Step-by-step Steam achievement unlock guide without narrative spoilers.
Story & Progression
Act completion achievements unlock at Act 2–4 gates and credits. Timeline milestones at 6 and 11 confirmed slots grant intermediate achievements. These cannot be missed on any completion playthrough.
Skill & Discipline
Perfect Order: Save before final quiz; memorize death order 11→1; avoid Tier 3 hints in Act 4. Frugal Investigator: Finish with 5+ unused hint tokens. No Guided Light: Never enable guided mode.
Collection & Exploration
Secret Historian: All optional LI/HE scenes — see 100 percent. Every Hotspot: Check scene tracker for incomplete inspections. Room-specific achievements exist for CH, OS, and WI full clears.
Frequently Asked Questions
Best save file strategy?
Slot A story, Slot B cleanup after credits, Slot C quiz retry.
Can I sync Steam achievements retroactively?
Unlock locally then sync; cloud save does not retro-grant.
Hidden achievements?
Several hidden until unlocked; no secret beyond listed 24.