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Clean all the Snow 100 Percent Guide: Completion Percentage

Understand what Clean all the Snow's completion percentage tracks, why runs stall at 96–99%, which spots get missed, and how to verify a full clear.

Quick answer

The completion percentage grades snow volume the server still owns, not how tidy the lot looks. Runs that look finished often sit at 96–99% because counted flakes remain behind the camera, on fence backs, or in corners. The fastest next step is a camera-pitched inspection lap around the property line or School Map before you touch the story trigger.

What the completion percentage actually tracks

The completion percentage in Clean all the Snow is not grading visual tidiness. It is grading snow volume the server still owns. Most runs that "look finished" are sitting at 96–99% because the percentage counts flakes the camera skipped. Decorative mounds in the thumbnail are obvious, but fence bottoms, welcome mats, garage-door rails, bike-rack U-bars, and the far side of a dump bin are not. A Snow Blower that "helped" at 98% often moved counted snow onto a clean rectangle, so it should be holstered at that stage; the Vacuum is the tweezers. The counter can appear to lie if you only look forward, because the percentage includes snow behind the camera and in corners that a forward-facing player never sees.

How progress is displayed and how to read the bar

The in-game HUD shows a percentage and a timer. The percentage climbs as you clear snow and unlock new streets. If you cannot see the percentage because a script GUI covers it, collapse the GUI; scripts are not a search tool. In co-op, one player can act as the percentage caller with no tool ego, watching the bar and calling zones. Useful calls include "98, inspect" to start the secret ending lap, "stop blower" when asphalt is black, and "dumping" so nobody blocks the vent. The in-game HUD does not show "you forgot the neighbor-side of the fence," so a human checklist fills that gap. Do not open another hallway or wing if the bar is yellow; beat the timer is the stop-expanding rule.

Common missed areas on the house lot

Roadmap

  1. 1

    Driveway and garage

    Clear counted specks without scattering them onto clean asphalt.

    • Check the driveway for any white on asphalt, which still counts; official after-shots are fully black.
    • Inspect the garage-door rail and the two feet of wall beside it.
  2. 2

    Front entry and porch

    Clear snow that forward-facing play hides around the entry.

    • Clear the front steps, mat, and under the porch railing.
    • Check behind bins, vents, and your own dump pile.
  3. 3

    Property line and fence

    Clear both faces of the fence, including the neighbor side.

    • Walk the property line once slowly; do not spiral, because spirals miss the same corner three times and call it a bug.
    • Clear the entire fence, both faces, including the neighbor side.
  4. 4

    Curb, mailbox, and back mound

    Catch edge geometry and shadow-side snow before the final check.

    • Inspect curb cuts and mailbox bases.
    • Clear the shadow side of the back mound after a Molotov.
  5. 5

    Newly unlocked street

    Clear the street you unlocked in the last two minutes while celebrating.

    • Walk the newly unlocked street before touching the story trigger.
  6. 6

    School Map hideouts

    Apply the same missed-geometry logic to School Map layout.

    • Clear every U-bar in the courtyard, where blowers scatter snow under racks.
    • Check each stair tread with the camera aimed at the riser, the curb of the bus loop after a Plow pass, bleachers and portable-classroom skirts, and the wing you opened while the tank was already full.

Tools and co-op for the last three percent

Tips

Vacuum is the default

Beam the base, not the sky. Vacuum is the tweezers for the final stretch.

Shovel works under benches and car skirts

It is tweezers, not a personality.

Molotov is only for monuments

Use it only when a monument is the remaining chunk; then Vacuum ash-adjacent flakes.

Holster Snow Blower and Plow

They create leftover snow by moving counted snow onto clean rectangles at this stage.

Gamepasses do not auto-complete endings

Passes do not auto-complete School Ending or Secret Ending; if you never spend Robux, you can still finish Normal and Secret with Cash buys and the walkthrough.

At 95% in co-op, use inspectors

One player calls streets, one watches the bar, one hunts porches. Twelve people on the mound scatter the last percent.

A two-player duo can beat a messy public 12-stack

Refuse to overlap: one Vacuum on porch plus fence, one Blower on driveway then side street, swapping at 95% so both inspect.

Relationship between 100 percent and the Secret Ending

The 100% completion bar is directly tied to the Secret Ending. The official game description states "Hit 100% to unlock the SECRET ENDING!" and the wiki confirms "a Secret Ending at 100%." A finished run is not enough; the secret ending badge needs a full clear. Normal Ending and School Ending are separate badges. Secret Ending is rarer than Normal, and School Ending is the rarest of the three. A run that reaches the story trigger without a full clear will not award Secret. The badge names are literal: School Ending, SECRET ENDING!, and NORMAL ENDING! all care about what the server still counts, not what the screenshot looks like.

Verifying a 100 percent state: the two-minute drill

Mechanic flow

  1. 1

    Pitch the camera and run the checklist

    Find geometry before touching the story trigger.

    • After you think you are done, do not walk to the story trigger.
    • Pitch the camera, run the eight house points or the School list, then look at the bar.
  2. 2

    Read the bar and repeat once

    Confirm whether the bar moved and identify what is still missing.

    • If it moved, you found geometry.
    • If it did not, you missed a newly unlocked street. Repeat once.
  3. 3

    Take the result

    Either the secret ending pops or you note which zone lied for the next run.

    • Then either the secret ending pops, or you take Normal and note which zone lied to you for the next run.
    • The inspection lap follows the same religion as the secret ending: edges, then center.
  4. 4

    Respect the timer

    Stop expanding when the timer turns yellow and inspect only when it turns red.

    • If the bar is yellow, do not open another hallway; beat the timer is the stop-expanding rule.
    • If you are at 80% on a red timer, you already lost Secret; go for a clean Normal or reset.

Related Guides

Secret Ending: 100% Unlock Requirement

Reach 100% cleanup with a leftover-snow hunt, disciplined tool use, and awareness of the failure points before the badge.

Map Unlocking Guide: How New Areas Open

Understand the cleaning-progress trigger that opens new areas, the observed lot order, and how access differs from ending conditions.