Project 13 Perception Test

Project 13 Perception Test is an observation game in which you sit in an Observation Chair and inspect scenes as a gate opens. You must report whether each scene contains an anomaly, completing 13 reports in a row to survive the test. A time limit keeps you from taking too long.

Spot the anomalies

Look for anything out of the ordinary, from subtle changes to glaring oddities, then press a button to report whether you saw an anomaly. The scenes are varied, and each anomaly is designed to test your observation; some are easier to spot than others. Anomalies become trickier as you progress.

The game combines a seated, relaxed pace with focused observation. A man behind the curtains is also mentioned.