the Steam most played chart. Most of the games that top the chart are free to play games. The closest non-free game at comparable price of US$79 is Elden Ring at 17th. Granted that BMWK is a newly launched title while Elden Ring is about 2.5 years old launched at Feb 2022. However Elden Ring peak concurrent player at Steam was 953,426 about 2.4 years ago.
In fact, as of now, BMWK is the second most concurrent played game at all-time peak in Steam chart, behind a free to play game. The closest none free game at comparable price is Cyberpunk 2077. BMWK beats Cyberpunk 2077's record by more than double.