Servant of the Lake Complete Guide: Story, Achievements & Review

Servant of the Lake takes players back to one of the most important periods in the Rusty Lake timeline: the years before the events of Rusty Lake: Roots, when Aldous and William Vanderboom were still working toward the discovery of the mysterious elixir. The game is particularly interesting for longtime Rusty Lake fans because it fills in a major gap in the Vanderboom family story. This post explains how to access the game, includes the official walkthrough video, detailed explanations on each achievement with screenshots, and our review of this latest Rusty Lake game!

Servant of the Lake Release Date, Price, and Download

Servant of the Lake released on August 13, 2026, for PC through Steam. The game is also available on mobile, while the Steam version includes Steam Achievements, Steam Cloud, and Family Sharing. (The link to the game is here!)

The game was originally planned for spring 2026, but Rusty Lake delayed the release to August after the project had nearly doubled in scope, particularly in terms of its story and puzzles.

There is also a free Servant of the Lake Demo available on Steam if you want to experience the opening section before committing to the full game. The demo originally offered around 15 minutes of gameplay and introduces the servant’s first assignments at the Vanderboom estate (Serving breakfast to Aldous). (The link to the game demo is here!)

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Servant of the Lake Official Walkthrough

Servant of the Lake follows the classic Rusty Lake point-and-click formula. You’ll move between rooms, inspect objects, collect items, combine clues, and solve puzzles to progress.

If you get stuck, Rusty Lake provides official video content through its YouTube channel, as usual. The developers’ channel is the best place to look for official walkthroughs and other Servant of the Lake material. You can find the link to the walkthrough in the game, or watch the YouTube video down here.

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Servant of the Lake Story: The Much-Expected Missing Piece [Spoiler!]

The most important reason to play Servant of the Lake is its story. The game is set decades before Rusty Lake: Roots, during the period when Aldous, William, and Alexandra are trying to create the elixir (each with their own agenda). The game explains:

1. The tension among Aldous, William, and Alexandra, and how each of them wants to collect the three timepieces for the elixir recipe.
2. How Harvey has become a parrot in the later story, and how he becomes involved in the Vanderbooms’ plots.
3. James’ birth and fate of becoming the sacrifice.
4. What happens to the maid Kate and her brother.

William Vanderboom

In Rusty Lake: Roots, William’s death and subsequent transformation are among the game’s most significant events. Servant of the Lake goes backward and explores his life before the elixir.

The two brothers both want the elixir to themselves, and William appears to be the hot-headed and naive one. He asks Harvey to steal the other two timepieces to get the book, but is deceived by Aldous as Harvey hands over the book to Aldous.

Aldous Vanderboom

Aldous is arguably the most immediately recognizable character. Longtime players already know him as the man who eventually becomes Mr. Crow. In Roots, Aldous and William discover the elixir, with Aldous ultimately transforming while William dies and is reincarnated. Rusty Lake has explicitly described Servant of the Lake as the story that explores their lives leading up to that discovery.

Servant of the Lake therefore gives Aldous much more depth. Instead of simply knowing his final identity, we see the man he was before becoming Mr. Crow. As the game goes, he does not seem as smart as he does later after turning into Mr. Crow. He is in charge of the family reunion, thinking about getting the book for the elixir recipe for himself, thus getting into a fatal argument with William.

Alexandra Vanderboom

The game also introduces the Vanderbooms’ sister, Alexandra, who had remained mysterious before Servant of the Lake. She appears to be the quieter character in the game, but it turns out that she is the main plotter wearing the red cloak. During the game, the player can see a character wearing a red cloak following them here and there, and that is Alexandra observing Harvey from afar.

As Aldous and William fight for the book and the timepieces, she takes down and moves the injured Aldous and William to the cellar as she proceeds to sacrifice James. She obtains the elixir from Aldous, who previously successfully made the elixir with the book. However, Kate, the maid, makes it in time to rescue both James and Harvey. In the end, Harvey escapes the house with James.

Harvey

And then there is Harvey. Harvey has been one of Rusty Lake’s most recognizable recurring characters since the early Cube Escape games. Servant of the Lake gives fans the most important clue of how Harvey turns into its parrot form.

After helping William collect the three timepieces, making elixir with Aldous, and helping Alexandra access the cave by cutting the chandelier rope, he is buried under the ruins in the cave. Kate saves Harvey with the elixir, but it has also transformed Harvey into the parrot form. After escaping the cave, Harvey returns to the house and tries to find out Kate’s brother’s whereabouts upon receiving Kate’s request.

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Servant of the Lake Achievements & Secret Level

There are 24 achievements and 1 secret level achievement in Servant of the Lake. As the game proceeds according to the schedule, each level has 1 achievement to unlock. The game has made a notebook so that the player can skip to any level to collect the missed achievement after playing through the game.

Day 1: 9 Achievements

Tasks	Achievements
The Arrival	Pet the horse several times.
Preparing Breakfast	Use the milk bottle to feed the cat before giving it the mouse.
Waking up Aldous	Click Aldous to make him do more exercise before following the correct exercise moves. He will sprain his back as a result.
Preparing the Reception	Use the duster to dust off the painting in the servants’ room, and piece it back together.
Welcoming the Guests	Give the bouquet to the goat to eat first, before giving it to Alexandra.
Serving Tea	Bring the tea leaves to the cat, and collect the matcha powder from the wooden crate in the hallway. Add the matcha powder to Alexandra’s tea.
Opening the Reunion	Let James drink from the champagne bottle first.
The Night Watch	Check the door to the garden several times until there is a shadow walking by.
Searching the Attic	Click the crow when it appears at the window.

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Day 2: 8 Achievements

Tasks	Achievements
Preparing Coffee	Bake the coffee beans on the stove before using them to make coffee.
Waking up William	Use the feather to tickle William’s chest, face, and toes.
Cleaning the Floors	Wipe the doodling at the upper left corner of the bloodstain in the servants’ room.
Going Hunting	Shoot the boar, the rabbit (shoot the rock with the first shot), and William with two shots, and the pheasant, the deer, and the pigeon with one shot. Do not miss the targets. (The sequence might be different, and the player needs to shoot down some targets first before the next target appears.)
Doing the Washing	Click the keyhole at the bathroom door.
Helping with Bathing	Wipe off the steam on the window while Alexandra is bathing.
Night Time Duties	Throw all the meat pieces out of the balcony on the second floor.
Inspecting the Cellar	Use the magnet to get the key. Click the hole again, and hammer the mouse when it runs out.

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Day 3: 7 Achievements

Tasks	Achievements
Looking for the Cat	Pet the cat multiple times when Kate is holding it.
Assisting in Alchemy	Bring the elixir to the parrot’s bowl first.
Unforeseen Maintenance	Find and click the secret compartment at the left leg of the table in the servants’ room.
Preparing Dinner	Use the knife to kill the fly appearing at the puzzle when cutting the cake. Collect it, and add it to the soup.
Dressing up for Dinner	Adjust the fish to appear in William’s painting. Take away the fish pin in William’s painting, and give the pin to William.
Serving Dinner	Click the chandelier rope several times.
The Departure	Roll up the bottom of Aldous’s pants, and use the fork to take out the bullets. Click the wounds to close them.

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Secret Level: Looking for Kate’s Brother

The player needs to finish the game first before receiving Kate’s note and unlocking the secret level. The player can use the notebook to skip to each task to look for clues.

Day 1 – Waking up Aldous	Adjust the alarm to 04:05. (Kate’s note mentions the time.)
Day 2 – Helping with Bathing	Click the tiles on the wall in the following order: Alexandra, tub, suitcase, hand (The brother’s note mentions there is a hand in Alexandra’s suitcase when she’s bathing.)
Day 3 – Assisting in Alchemy	Click the left and right buttons on the box on the floor in the following order: right, right, right, left, right, left, right, right, left. (These are the directions for how to get out of the maze on the note from the middle of the maze.)
Day 1 – Searching the Attic	Connect the related items on the note, and the player can get the star patterns for the box.
Day 3 – Dressing up for Dinner	Adjust the pattern on the wine case to make it look the same as the pattern on the note.
Day 3 – Dressing up for Dinner	Move the cellar bottles: bronze bottle – spiral pattern, silver bottle – snake pattern, gold bottle – triangle shape with a dash. (The last pattern also appears on James’ head after the player dresses him with the cloth and drops the water on his forehead when dressing up for dinner.)
Day 3 – Dressing up for Dinner	Enter the burrel and collect the note on the shelf. The password to the green box is 6294. 1. The first number is the one for opening the suitcase from the bathroom in Day 2 – Helping with Bathing. 2. The second number is the number on the window in the painting of the house in Day 2 – Preparing Coffee. 3. The third number comes from the number matching the eye in Day 2 – Going Hunting. 4. The fourth number matches the code in Day 3 – Assisting in Alchemy.
Day 3 – Dressing up for Dinner	Take the telescope, and go directly to the window next to the dining room. Point at the distant castle, and you will find Kate’s brother.

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Reviews on UI, Narration, and Puzzle Difficulty of the Game

The UI Is Excellent

One of the things many players particularly enjoyed about Servant of the Lake is the UI.

Rusty Lake has always had a recognizable visual identity, but the interface here adds a notebook that records all the tasks, achievements, notes, and a handwriting notebook section. This UI not only helps the player to easily track gaming progress, but it also allows the player to replay any tasks to collect missing achievements. The secret level makes use of this design as well, to let the player search for secret clues in each task.

Compared to the earlier Rusty Lake series, where the player needs to replay the entire game to collect achievements, this notebook definitely gives you a big relief!

The Story Is Much Clearer

Another major strength is the way the game narrates its story. Rusty Lake’s lore can be incredibly difficult to follow because the series rarely explains everything directly. Characters appear in multiple games, timelines overlap, and important events are often communicated through symbolism.

Servant of the Lake is still unmistakably a Rusty Lake game, but the story feels more focused. Because the game stays inside the Vanderboom estate and centers around a specific period in the family’s history, it’s easier to understand what you’re looking at and why it matters.

Most importantly, it finally fills in the missing part of the Aldous and William elixir story. If you have played through the Cube Escape series and Rusty Lake Roots, you can easily figure out the main story plots, characters, and what’s going on in Servant of the Lake. All in all, it has a clear story narration, and it clears up what has been confusing from the previous Rusty Lake games.

Puzzle Difficulty and Pacing

The puzzle difficulty is another major strength. Servant of the Lake doesn’t throw its hardest puzzles at you immediately. Instead, the game establishes its mechanics with relatively straightforward tasks before gradually introducing more complicated puzzles. And generally speaking, the game difficulty is significantly toned down for a clearer narration, so the player can focus on the story better.

The most difficult part would be the alchemy, where the player needs to figure out what each symbol represents. Some mini-games turn out to be time-consuming, such as the one in the bathroom for the soap bar. But it is fair to say that even for the secret level, the difficulty level is lower than Underground Blossom or Cube Escape The Cave.

Some Unfulfilled Expectations

Am I the only one expecting something more shocking? After playing through the pig feces sandwich and Laura’s death in Cube Escape Seasons, the player might be ready to see something as disgusting and as terrifying in Servant of the Lake. Although there are some jump scares in the game, the main tone appears to be more about plotting and family tension.

On top of that, some mini-games can be designed better. The logic of the music notes when William is singing is really hard to get. While Aldous appears to be allergic to potatoes in the previous mini-game of dish tasting, it turns out that he is allergic to carrots when serving the starter. The pointing has to be accurate and not cross over other symbols at all when William is pointing at the scroll. There are moments that you have to look for a guide, and only feel that “I can’t believe it’s that simple” afterwards.

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Is the Game Worth Playing

• If you’re new to Rusty Lake, it is not a bad choice to play Servant of the Lake first. It explains the storyline before Rusty Lake: Roots, and the timeline progression is more natural because the Rusty Lake series published the games in a retrospective order.
• But if you’ve already played other Rusty Lake games, Servant of the Lake is still one of the more important games to play for understanding the Vanderboom family. It answers all the key questions of Mr. Crow’s identity, Harvey’s identity, James’ birth, and what happened before Rusty Lake: Roots.

🏚️Need help solving Rusty Lake puzzles or unlocking every achievement? Check out our Rusty Lake guide hub, featuring complete walkthroughs, puzzle solutions, story explanations, achievement guides, and everything you need to explore the strange and mysterious world of Rusty Lake!