Servant of the Lake has 49 Steam achievements. Roughly half unlock on their own as each block of the day ends; the rest are hidden, tied to optional interactions, and vanish when their block does.
Honest status: we can account for about 36 of the 49. The remainder sit in Day 3's later blocks, which no source we trust has documented yet. This page is updated as that changes — everything below is verified, and we would rather show you a gap than pad it.
Can you 100% it in one playthrough?
Yes, if you know the triggers going in. Nothing in the game requires a second run — but a clean, competent first run will finish at roughly half the achievement count, because the hidden ones are mostly rewards for doing chores wrong.
The exception is the final achievement, which begins after the credits by design.
The three categories
Story achievements — unmissable. They fire as each block of the day completes: The Arrival, Preparing the Reception, Welcoming the Guests, Serving Tea, Opening the Reunion, the Night Watch, Searching the Attic, Preparing Coffee, Waking up William, Cleaning the Floors, Going Hunting, Doing the Washing, Helping with Bathing, Night Time Duties, Inspecting the Cellar, Looking for the Cat, Assisting in Alchemy.
Deliberate failures. Botch the exercises until Aldous is stuck. Let the goat eat the bouquet before Alexandra gets it. Give the champagne to the baby instead of William. Scrub the portrait when you were told to clean the floors.
Persistence. Several want the same click ten or twenty times with no feedback until the threshold: petting the horse, chasing the crow, dusting past the third painting, the rope in the dining hall.
Order of operations for a single-run 100%
- Grab the missable achievement in a block before you finish that block. Once the day moves on, it is gone until you reload.
- Do the deliberate-failure version first, then complete the chore properly. Failing does not lock you out of finishing.
- Write down four things as you meet them — the attic stars (4 2 3), the Day 2 bathing tile set, the alchemy click order, and the cabinet code (6294). The post-credits route asks for all four hours later.
- Open the Day 3 cabinet even if you do not need what is inside. The telescope is the final step of the last achievement and there is no other way to get it.
- Do not chase the last achievement before the credits. It does not exist yet.
The full trigger list
Every hidden achievement, in the order you reach it, with the official in-game clue where the game gives one, is on the hidden achievements page. The post-credits route has its own page.
The two that catch everyone
A Perfect Hunt — you are given more bullets than targets and the surplus is not a margin. One miss ends the attempt. See the perfect hunt.
Pest Control — the magnet gets you the key, and the key is what you came for, so most players leave. The achievement is two steps past that. See pest control.
Filling the gap
If you have finished Day 3 and have achievements this page does not list, send them over. Names, clue text and what triggered them all help, and contributions are credited on the page.
Still to be confirmed
We could not verify the following against more than one source, so we have left it out rather than guess. This page is updated as confirmations come in.
- About 13 of the 49 Steam achievements. Community documentation for Day 3 Afternoon, Evening and Night is still marked work-in-progress, and the day-two-old guides do not cover it.