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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 Zombie Day Protocol yet.
Concurrent Steam players, not daily or monthly active users. Console and other launchers are excluded. Peaks cover GaugeDB’s recorded history.
Activate beacons, summon the horde, and shoot your way out! Survive a 25-day train journey in this first-person zombie shooter. Return aboard between battles to gear up and shape your build. Fulfill a mysterious company's contract and reach the survivors' camp alive.
Steam store description