LogFAQs > #965946284

For comparison, Diablo 3 sold 6.3 million copies in its first week. Granted a lot of those sales were probably from the cross-advertisement with WoW, but that's still a claim of $360 million.

They released some stats which look good on the surface, but are actually a bit embarrassing if you do the math:
https://twitter.com/DiabloImmortal/status/1537842527360909313
2.7 billion demons killed divided by 10 million installs = 270 kills per install. That's presumably a whole lot of people who installed and never played. And 21 deaths per demon killed? Something really wrong there.

The game gets worse and worse as you progress. Not necessarily in a P2W sense, though they have started adding in weekly and monthly deals to cash in more. For example, once you get to level 60, you can no longer run solo dungeons and instead must run with at least 1 party member (for rewards and quests). Same once you get to Hell 2 level, you must wait for a full four member party. They also just nerfed some of the better farming locations and monster drops.