Notes Guide: Track Secrets and Puzzles

Build MONOMOON notes that track puzzles, secrets, and achievements so nothing in the open world slips past you — a practical note-taking system.

MONOMOON drops you into a tiny open world with no instructions and expects you to work out the rules yourself. That's thrilling for about twenty minutes, and then your memory starts shedding details — which is exactly why MONOMOON notes matter. A single page of MONOMOON notes turns a fog of half-remembered rooms into a working map of puzzles, items, and mysteries you haven't cracked yet.

Why MONOMOON Notes Beat Memory Alone

The hook here is pure deduction. You wander a small, mysterious world, pick up items that don't explain themselves, and piece together what they're for. Because progression is non-linear, you'll regularly meet a sealed-off corner, a strange shape, or a quiet clue long before you have the knowledge to use it. That gap between finding something and understanding it is exactly where a notebook wins.

The secrets stack, too. There are straightforward puzzles near the surface, cryptic mysteries that only make sense much later, and hidden game mechanics underneath both. A detail that reads as decoration in your first hour can be the answer to something five hours later. Solid MONOMOON notes let you bank that detail now and cash it in when the connection finally clicks.

What makes the habit urgent rather than optional:

  • Discovery order rarely matches solving order. "Found it" and "understood it" are two separate entries, sometimes days apart.
  • Mysterious items need a ledger. Without one, you re-test the same object three times and learn nothing new.
  • Hidden mechanics are invisible by design. The game won't announce them, so the only record is the one you write.
  • The world rewards wandering. Exploration is player-driven and paced however you like, which means long gaps between sessions are normal.

The scope is modest, not shallow. You can finish the main path in roughly ten hours, but digging deeper uncovers far more than the critical route — and there's a full set of 15 Steam achievements on top. That's plenty of moving parts for a couple of pages of scribbles. The game currently sits at Very Positive with 98% of 497 reviews positive, which tells you the deduction loop lands; it also tells you plenty of players are out there solving the same kinds of puzzles you are.

What Deserves a Line in Your MONOMOON Notes

Not everything belongs in the log. The filter that works: if a moment made you pause and think "huh," it gets a line. Ten seconds of writing now saves ten minutes of wandering later.

CategoryWhat to captureWhy it pays off
Unsolved blockersWhere it is, what shape the obstacle takes, what you already triedLater finds suddenly match earlier walls
Mysterious itemsWhere it came from, what it looks like, what happened when you used itStops you from re-testing the same object repeatedly
Inferred rulesAny mechanic you worked out that the game never explainedThis is the deepest secret layer and the easiest to forget
Suspect sceneryAnything that felt deliberately placed or oddly emphasizedCryptic mysteries tend to hide in plain sight
Routes and landmarksA two-line description of how two areas connectNon-linear worlds blur together fast
Achievement progressWhich of the 15 achievements you've already earnedPrevents duplicate hunting on a second pass

Set up one page called Open Questions before your first session. Everything goes there in the order you find it, unfiltered. Sorting happens later, when you actually have something to sort.

A Four-Step Workflow for Keeping MONOMOON Notes

The system only survives if it costs almost nothing during play. Four steps, none of them long:

StepActionTime cost
1. Open the loopSkim your Open Questions page before you hit play1 minute
2. Park it fastThe moment something feels off, write two lines — no analysis15 seconds
3. Close the sessionRe-read today's entries and tag each one solved or open3 minutes
4. Weekly sweepPick the three oldest open entries and revisit those spots10–20 minutes

Step 2 is the one people skip, and it's the one that matters. Capture now, think later. An entry that reads "odd shape, east side, does nothing yet" is worth more than a brilliant theory you never wrote down.

Step 3 is where the log turns into a tool. Tagging each entry solved or open gives you a to-do list that's generated by your own play, not by a walkthrough. Step 4 is optional in a single weekend of play, essential if you're chipping away at the game across weeks.

One more rule: keep the log one keystroke away. If writing a note means closing the game, minimizing, and hunting for a file, you'll stop by the second hour.

Picking a Format for Your MONOMOON Notes

The best format is the one you can open in two seconds. Everything else is preference.

FormatStrengthsTrade-off
Paper notebookFastest capture, no alt-tabbing, easy sketchesNo search; reorganizing means rewriting
SpreadsheetSortable and filterable, ideal for item ledgersSlow to open mid-exploration
Note-taking appSearch plus sync across devicesEasy to over-engineer with tags and folders
Screenshot folderPerfect fidelity for symbols and layoutsUnlabeled images become noise within a day

A hybrid works well: screenshots for anything visual, paired with a two-line caption in your main log that says where it is and why you saved it. If you go pure paper, leave the right-hand margin empty so you can add a status tick later without rewriting the page.

Reading Your Notes at Each Milestone

Your MONOMOON notes should change shape as the run progresses. Early on they're a net; later they become a plan.

MilestoneWhat the log should holdQuick check
First hourA raw list of anything odd, unfilteredAt least ten entries?
HalfwayAn item ledger plus a sorted Open Questions listCan you say what each item does — or that you don't know yet?
Around the creditsA closed list and a still-open listThe still-open list becomes your next session's route
After the creditsA dedicated page for inferred hidden mechanicsAre any entries still unexplained? Keep pulling

That last row is the one worth planning for. The credits are a checkpoint rather than a finish line — the game keeps going afterward, with deeper secrets reserved for players who keep digging.

There's also a social shortcut built into the design: every puzzle and secret is solvable solo, with all clues contained in the game, but comparing findings with a friend is explicitly encouraged. A clean, well-dated log makes that conversation possible. Vague memories don't.

Five Mistakes That Hollow Out Your MONOMOON Notes

MistakeWhy it hurtsFix
Writing conclusions instead of observationsA wrong theory overwrites the raw detail you needLog the observation first, theory in its own column
Hoarding screenshotsUnlabeled images are impossible to searchCaption every screenshot on a single line
Over-organizing earlyYou spend play time on taxonomy instead of puzzlesOne chronological page until it genuinely hurts
Skipping datesYou can't tell what's new from what's staleAdd a session date to every entry
Notes on the wrong deviceFriction means you quietly stop writingKeep the log one keystroke from the game

The fix that solves most of these at once: separate what you saw from what you think it means. Observations age well. Theories age badly and, worse, they contaminate the observation if you only keep one.

FAQ

Are MONOMOON notes an in-game item or something I make myself? Plan on keeping your own. The game is built around deduction and hands you no proper instructions, so an external log is the safe assumption going in. If some kind of in-game record does exist, your notebook costs you nothing and still holds the theories a game journal wouldn't.

How long does the game take, and does that change how I should take notes? The main path runs about ten hours, with considerably more hidden underneath for players who dig. That's short enough to hold details in your head for a day, far too long to trust across a month of evening sessions — which is the case for light, consistent notes rather than an elaborate system.

Can I solve everything alone, or do I need outside help? Everything is designed to be solved solo, and every clue you need lives inside the game. Comparing notes with a friend is encouraged rather than required, and it's a good reason to keep your entries specific enough to explain to someone else.

Is it worth keeping MONOMOON notes after the credits? Yes — the game doesn't wrap up when the credits roll. Keep your still-open list and your mechanics page after finishing, because that's exactly the material the late-game secrets are built on.