THEORY

Recorded Steam activity

GaugeDB’s latest recorded Steam player count for THEORY is 0 concurrent players (20 Oct 2026, 01:51). Its recorded 24-hour peak is 0 players. The highest count in GaugeDB’s collected history is 1 concurrent players on 13 Oct 2026.

Concurrent Steam players, not daily or monthly active users. Console and other launchers are excluded. Peaks cover GaugeDB’s recorded history.

"Theory" is an intense first-person shooter (FPS) game set in a post-apocalyptic world overrun by hordes of ravenous zombies. Players find themselves in a vast, desolate landscape. As a survivor, you'll navigate through various environments.

Steam store description