Radiation Island

Recorded Steam activity

GaugeDB’s latest recorded Steam player count for Radiation Island is 1 concurrent players (29 Oct 2026, 19:23). Its recorded 24-hour peak is 4 players. The highest count in GaugeDB’s collected history is 8 concurrent players on 12 Oct 2026.

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

Radiation Island is a survival adventure game where you craft your own destiny in a huge open world environment. As part of the Philadelphia Experiment you have become stranded in a parallel, alternate reality. Discover this new and mysterious world, with all its surprises.

Steam store description