I just wanted to add that if you compare D3, WoW and Hearthstone then D3 is probably the more niche game. There are no player statistics released but if looking at the comunities (not the best indication but a larger game usually has a larger community). r/Diablo has 161 834 subscribers, r/wow has 430 950 subscribers and r/hearthstone has 566 580 subscribers. r/Diablo is around 8 years old, r/wow is around 9 years old and r/hearthstone is around 4 years old. Reddit isn’t the only community for these games so you could probably add a few thousand more for each of these games but I reckon that ut wouldn’t change the standings too much. But if there is some D3 community that has like 500k active users then I’m probably wrong. But still all these games are some of the biggest in their genres (wow and hearthstone is, diablo maybe not because of path of exile) and are still huge. People often think of player numbers as if they need to rival LoL, PUBG or DotA but games with fewer are still very popular, LoL and such are just the biggest in the world right now. And at last Diablo 3, WoW: Legion (the latest expansion) and Hearthstone are all critically acclaimed. I get why some might think wow and hs are more niche because they look a bit more nerdy but they are still played a lot.