(Margin note, written in different ink, likely by the player’s Dorothy after reading):

Unlike typical horror games that rely on jump scares, Lab Sweeper uses cleaning mechanics to build tension.

Developed by the enigmatic indie studio Moonlit Anomaly , the game drops you into the worn-out boots of Dorothy Venn, a night-shift sanitation worker at , a prestigious (and fictional) biotech firm. The core gameplay loop appears simple: clean labs, dispose of biohazards, and mop floors. However, the "Secret Research Records" element transforms the experience.