Unofficial fan guide · Updated 2026-08-14
Servant of the Lake Walkthrough
Every task, every puzzle solution and every code for Rusty Lake's Servant of the Lake — Day 1 to Day 3, plus the hidden ending. Each page is spoiler-tagged, so you can read only as far as you are stuck.
- Released
- Aug 13, 2026
- Structure
- 3 in-game days
- Achievements
- 49 on Steam
- Platforms
- PC · macOS · iOS · Android
Browse by what you need
Stuck on one screen? Go straight to the puzzle. Starting fresh? Take the full route.
Walkthrough
Full route in play orderPuzzles
One page per puzzleCodes
Numbers you can enter right nowSecrets
Post-credits contentLore
Story context, light spoilersElsewhere
Not covered on this siteMost-read guides
Day 1 Walkthrough — Aldous's Routine and the Reunion
Full Servant of the Lake Day 1 walkthrough: courtyard cups, the porridge, the wake-up order, chandelier candles, the garden, tea and the parlor block.
Read guide →
Day 2 Walkthrough — Coffee, the Hunt and the Bath
Servant of the Lake Day 2 walkthrough: roasted coffee for Aldous, waking William, the perfect hunt, the bathing tile puzzle, the cellar and pest control.
Read guide →
Day 3 Walkthrough — Assisting with Alchemy
Servant of the Lake Day 3 walkthrough: the alchemy box sequence, cabinet code 6294, the telescope, the fish placement and every Day 3 hidden achievement.
Read guide →Full-Game Walkthrough
The complete Servant of the Lake route from the courtyard to the post-credits secret, with every fixed code and every missable achievement flagged.
Read guide →Demo Walkthrough
Complete Servant of the Lake demo walkthrough: the courtyard cups, the porridge, the wake-up order, the insect in the bowl and the exercise puzzle.
Read guide →
Lite Walkthrough — Mobile Free Version
Servant of the Lake Lite walkthrough for the free mobile build: the same opening as the PC demo, with the touch quirks that make the puzzles harder.
Read guide →Solutions you can actually read
Most guides publish puzzle answers as a screenshot of somebody’s screen. Every fixed code and sequence in this game is drawn out instead — the star dials, the click order, the keypads, the clock.
Where you will be
The estate, room by room. Official screenshots from Rusty Lake.
Five things to know before you start
- 1
The game runs on three in-game days. You cannot skip a day, and most tasks must be done in a fixed order.
- 2
When a scene will not advance, the missing step is almost always an item you have not picked up yet — sweep the room before you re-try the puzzle.
- 3
Hidden achievements are triggered by doing the *wrong* thing deliberately (feeding the goat, failing the exercises). Grab them on your first pass; a second playthrough is not required.
- 4
One three-digit code — the luggage in the garden — is randomised per playthrough. Shake the baby basket and listen; no guide can give you that number.
- 5
The final secret, "You've found him!", only starts after the credits. Do not chase it before you finish Day 3.
Servant of the Lake FAQ
+How long is Servant of the Lake?
It is built as three in-game days. Rusty Lake's premium titles typically run a single evening, and this one is in the same range — most players finish the main route in one sitting. Chasing all 49 Steam achievements adds a second pass.
+Is this walkthrough spoiler-free?
Every page carries a spoiler level in its header — none, light, or heavy. Puzzle pages give you the solution and nothing about the story around it, so you can unstick yourself without reading ahead.
+Do the demo and the Lite version share solutions with the full game?
The demo covers the opening slice of Day 1, so those puzzle solutions carry over exactly. Content past the demo is unique to the paid release.
+Is the walkthrough complete?
Day 1 is documented step by step. Day 2 and Day 3 are complete for every puzzle we could verify against more than one source; anything we could not confirm is labelled "to be confirmed" on the page rather than guessed at.
+Where do I find the price, mobile versions or the achievement list?
Those live on our sister site, servantofthelake.net. This site is walkthrough and puzzle solutions only.
Looking for the price, the Android/iOS builds, the soundtrack or the full achievement list? Those live on servantofthelake.net. This site stays focused on walkthroughs and puzzle solutions.