Servant of the Lake opens with a compact dependency chain: get through the estate door, sign on as the new servant, cook porridge, and complete Aldous Vanderboom’s morning routine before the guests arrive. This walkthrough covers that entire free Steam demo, from opening the carriage curtains to tapping the arriving guests’ coach.
The scope matters. The demo is a 15–30 minute preview released on October 13, 2025. As checked on August 1, 2026, Steam still listed the premium full game as coming soon on August 13, 2026. The steps below solve the demo build; they do not claim to cover the unreleased weekend, later rooms, experiments, or endings.
Route in one line: striped cups → coachman’s coin → iron bar → estate key → signed contract → portrait code 235 → porridge → Aldous at 7:00 → shave and berries → exercise pattern → clothes → guests.
Carriage yard route: cups → coin → iron bar → front-door key
Open the curtains inside the carriage and wait until it stops. Leave the coach and inspect the whole exterior before trying the house door. Take the carrot from the planter and feed it to the horse. Then collect the two tin cups: one is behind an open carriage window, and the other is inside the small compartment beneath the coach.
The right-side window is the puzzle station. Open it, place both loose cups beside the three already there, and arrange all five by their stripe count from one through five. The useful check is visual: each next cup must have exactly one more stripe than the previous cup. When the row is accepted, take the coin from the first cup.
If no coin appears, do not search the planter for money. One cup is either still in the carriage or the five-cup row is not in ascending stripe order. The horse and carrot do not substitute for this lock; the coachman will only leave after he receives the coin.
Give the coin to the coachman and let the carriage move away. Pick up the iron bar left behind. Pry the slightly raised plank beside the planter; it may need a short dragging or wiggling motion before it lifts. Take the revealed key, unlock the front door, and enter the Vanderboom estate.
Contract first; breakfast ingredients second
Talk to the maid in the entrance hall and take the crow feather she offers. At the nearby table, dip the feather into the ink and draw on the contract’s signature line. The game needs a visible signature, not a particular name. Speak to the maid again after signing so the first assignment changes to preparing breakfast for Mr. Aldous.
This conversation is the handoff between the yard and the house. If you can explore rooms but the breakfast route does not advance, return to the contract: confirm the feather was inked, confirm a mark is on the line, and then talk to the maid once more.
Why the cabinet code is 235
The locked breakfast cabinet does not provide its own clue. Its three digits are distributed across the family portraits:
- Aldous Vanderboom: interact with his portrait and count three watch shakes.
- Alexandra Vanderboom: her portrait raises two fingers.
- William Vanderboom: his portrait blinks five times.
Read those responses in that family route order to enter 235. Take the sugar from the opened box. If 235 is rejected, revisit the portraits and let each animation finish; clicking repeatedly while an animation is running makes the counts harder to read but does not create a different code.
Now collect the rest of the breakfast chain. The crate near the maid holds the milk. The right-side upper room has the small pot above the cabinet. A low hole in the wall produces a dead mouse. Give that mouse to the cat in the central hall, then take the matches from the chair it vacates. In the kitchen to the left of the entrance, collect the wood and the bowl of oats; the note on the table confirms the recipe.
Put the wood into the stove, light it with the matches, and close the stove door. Set the pot on top, then add milk, oats, and sugar. Take the finished porridge. If the pot does not become collectible, audit the state rather than repeating the portrait code: the fire must be lit, the stove door must be closed, the pot must be on top, and all three ingredients must be inside.
Carry the porridge back toward the maid and enter Aldous’s room. The prepared pot is the checkpoint that ends the ingredient search; do not spend time on the optional candle if the bedroom route is already open.
Aldous’s six-part morning routine
Read the note on the table before acting. It gives the order: open curtains, wake him at 7:00, shave, serve breakfast, exercise, dress. Its final warning—he dislikes cold feet—is the reason the slippers matter. Treat the note as a state machine: when Aldous refuses the next object, the previous requirement is probably incomplete.
Inventory sweep before the alarm
Take the bowl from the table. Open the two lower dresser drawers for a spoon and one slipper; the other slipper is near the patterned puzzle box. Solve that box by rotating the pieces with the central disc until every tile matches the pattern beneath it, then take the razor. Move the clothes on the rack until the cleaning cloth is exposed. Finally, remove the clock hand from the toy soldier.
The box is a target-state puzzle, not a code. If it stays locked, compare each tile with its printed slot and correct the mismatched piece rather than looking for a number elsewhere in the house.
Wake, warm, and shave
Open the bed curtains. Fit the missing hand onto the clock, then adjust the face to 7:00: the short hand points to VII and the long hand points to XII. Once Aldous wakes, put both slippers on his feet. One slipper is not enough; the note’s cold-feet warning is a two-item gate.
Use the razor on every visible patch of stubble. The last cut removes an earlobe. Pick it up, then use the cloth to clean the blood. The cloth is not cosmetic cleanup: it completes the shaving state before breakfast can proceed cleanly.
Turn the missing breakfast item into the berry key
Give Aldous the bowl and spoon, then add the porridge. When he says something is missing, that is the intended cue—not a failed recipe. Open the window and feed the severed earlobe to the bird. Take the key it returns, use it on the top dresser drawer, and collect the berries. Add them to the porridge.
The insect puzzle begins inside the bowl. Move a berry away from a hole; when the insect appears at another hole, cover that opening with a berry. Keep forcing it between the remaining openings until it can be squashed. If nothing moves, make sure the berries have actually been added and drag one clear of its hole instead of tapping the spoon.
After the insect is gone, carry the spoon to Aldous’s mouth repeatedly. Stop only when he says he has had enough. A single spoonful does not clear the breakfast gate.
Copy the soldier, then dress Aldous
Interact with the toy soldier and record its complete sequence:
Left → Right → Down → Right → Right → Down
Move Aldous in exactly that order. If the exercise does not complete, replay the soldier and restart from the first direction; continuing after one wrong input will not repair the sequence.
Dress him with the clothes from the rack in the accepted order: shirt, vest, bow. When the routine is complete, look through the window. The guests’ carriage is now approaching the estate. Tap the carriage to trigger the end of the demo.
The guests’ carriage is the only finish signal you need
If the final carriage is not available, trace the six routine gates instead of revisiting the yard. Confirm 7:00, two slippers, every shaved hair, blood cleaned, berries and insect resolved, enough spoonfuls, the six exercise inputs, and all three clothing pieces. The window changes only after Aldous has passed the whole routine.
Evidence boundary: two readable written walkthrough references independently support the demo’s main dependency chain and fixed values. Their wording differs on the insect’s path, so this guide uses only the shared observable method: move berries, block the hole where the insect appears, and continue until it can be squashed. No video was used or embedded. Nothing from the demo was projected into the still-unreleased full game.
Sources and credits: The official Servant of the Lake Demo Steam page and official Steam appdetails established the developer, release date, demo length, scope, full-game boundary, and original JPG media. The route was cross-checked against two readable community walkthrough references. No competitor image or unverified video is published here.