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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 Psion Protocol yet.
Concurrent Steam players, not daily or monthly active users. Console and other launchers are excluded. Peaks cover GaugeDB’s recorded history.
Bullet-hell game. Face endless enemies in Survival Mode. Psion Themed! Earn experience and survive as long as possible! Unlock Powers and Gear. Complete achievements! Mix Psions, Powers and Gear each run! Playable with one hand. Rhythm Based.
Steam store description