The audience for a title like this is much smaller. Spider-Man and GoW have huge mainstream appeal already.

Not sure why so many downvotes. I mean 2m isnt bad but its certainly nothing amazing in modern gaming. DriveClub sold 2m and they were closed down.
@Spike0503 The audience may be small but i dont think the budget on a game like Detroit will agree with that.

DriveClub came from a studio who had four prior games, each with sales lower than the previous. Completely opposite from whats going on at QD. Also, many British gaming studios have been closed with better selling games, like LionHead.

@Azzanation Who knows. I think that considering how linear the game is, its budget is probably not as expensive as GoW or as Spider-Man since they don't have to pay for a license.

QD games have never gone into Uncharted/GoW levels of sales yet they've kept a steady release of games for their niche audience. Even with critical failures like Beyond Two Souls, Sony is still supporting them. Another game not from QD but extremely similar in style is Until Dawn. That game didn't sell 3.3mil in one day but Sony still considered it a success.

@Spike0503 Google says the estiment budget for Detroit Become Human is around $37m. Almost as much as Halo 4. Is 2m enough to profit? Professionals say games costing $100m need to sell between 5 to 10m copies. Not entirely sure if DBH profited by selling 2m. Guess we wont know for sure.

It does not seems impressive when compared to other games on popular franchises like Mario, CoD, GoW etc. But for an interactive drama, which is a divisive and niche segment, and compared to previous QD games, these numbers are actually quite good. Personally, I wish that these kind of games had more appeal and better sales, since it´s a great way for actors to be more involved in this industry