Hollow Mission
Single player First person Puzzle Base Casual Story base game that follows a soldier in his mission to find out what has happened to a lab out in the woods.

Very Positive · 360 reviews
80% positive (288 / 360)






Move silently. Clean thoroughly. A 3D horror action and cleaning simulation featuring Kao’s real products. Clean the villa, solve hidden puzzles, and escape while your performance affects the home’s appraisal value. A unique blend of suspense and cleaning awaits.
Released
August 7, 2025
Price
Platforms
Windows
Developer
Publisher
Last sync
October 9, 2026
The protagonist has long neglected a villa inherited from their late father.
While cleaning the villa to sell it to a real estate agency, they discover a hidden code beneath the kitchen grime.
As the cleaning continues, more codes are uncovered.
While solving the mysteries of the villa and their late father, the protagonist keeps cleaning—but something ominous is lurking…
1. Real Cleaning Items Appear in the Game
Official Kao products such as “Magiclean” and “Quickle” are featured.
Some items can even be combined to unlock special cleaning techniques!
2. Discover Hidden Codes and Gimmicks in Each Stage
The villa is divided into multiple stages.
Use your cleaning tools to uncover hidden codes and find keys to progress to the next stage.
3. Beware the ‘Something’ That Stalks Cleaning Players
A mysterious presence in the game reacts to subtle sounds like your cleaning and footsteps.
Clean the villa while avoiding this threat and aim to escape safely!
Kitchen Magiclean Handy Spray

Toilet Magiclean No-Scrub Foam Pack

Bath Magiclean Air Jet Disinfectant EX

Quickle Wiper 3D Wet Sheet STRONG – Ultra Deodorizing

Magiclean EXPOWER Water Stain Spray

60–90 minutes
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