Quantic Dream reported that Detroit: Become Human has reached that milestone a month after its release on Steam. The game was previously exclusive to the Epic Games Store, where it has been on sale since December 2019.
The developers are also very pleased with the positive feedback from users. According to them, most of the accolades come from players from the Asian region. In the same interview, they noted that they are delighted with the way streamers use the Community Play feature.
Community Play allows viewers to directly influence streamer choices through voting. Since the introduction of this mechanic, more than 500 streamers have used it.
Going back to sales, there is no way to calculate the exact number of copies sold per digital store. The latest official stats are Detroit: Become Human, which sold 3 million copies in October 2019.