The Steam: Game and Player Statistics page shows the Fallout 4 has already achieved a peak of 445,546 simultaneous players, which Polygon notes is a record for a non-Valve title on the service. According to Steam Charts the previous record-holder was Grand Theft Auto V, which peaked at 360,761 concurrent users shortly after launch. This graph puts this information in visual form, though the line graph is not particularly suited to the data.