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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 Shelf Stable yet.
Concurrent Steam players, not daily or monthly active users. Console and other launchers are excluded. Peaks cover GaugeDB’s recorded history.
Helix Dynamics sold the world a miracle product labeled Shelf Stable. It wasn't. Horde-scale tower defense: hold Checkpoint Voss against tens of thousands of infected hosts, research heavier hardware, and come back until nothing is left walking.
Steam store description