Starter path
How to Finish
On the House/Easy route described here, after the final Basement wave reaches 2/2 and 100.0%, follow the new direction cue into the opened red vent or duct, continue through the story sequence, and wait for ROUND CLEARED!.
Guide directory
The official description connects 100% progress with a SECRET ENDING. On the House/Easy route described here, that progress signal is followed by an ending-related sequence and then the later ROUND CLEARED! result. Choose How to Finish for the last playable actions, or Ending Meaning for a full-spoiler interpretation.
This page stays spoiler-light. It does not claim a complete ending list or show ending scenes; choose How to Finish or Ending Meaning for a focused next step.
Pick the page that matches the task you want to solve next.
2 available guide
Starter path
On the House/Easy route described here, after the final Basement wave reaches 2/2 and 100.0%, follow the new direction cue into the opened red vent or duct, continue through the story sequence, and wait for ROUND CLEARED!.
Starter path
Full spoiler warning: this page discusses the ending and one possible interpretation, but does not show scene images, embed video, repeat the finish route, or claim a complete ending list. One possible reading is that the cleaning task becomes an experience under ongoing observation or surveillance; who is watching and whether they control anything remain unknown.