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Individual prerelease counts require verified game access. GaugeDB can record a count if Steam publishes one in its public chart, or when collection becomes available after release.
No Steam player count has been recorded for Experiment 15 yet.
Concurrent Steam players, not daily or monthly active users. Console and other launchers are excluded. Peaks cover GaugeDB’s recorded history.
Experiment 15 is a two-player online co-op psychological horror puzzle game where you share control of a single body. One controls the body, the other the mind. Communicate, combine what each of you can perceive, and survive a series of disturbing experiments.
Steam store description