you're basically saying there are no decent single player games, as all the games you mentioned are single player games, and yeah I agree.

Annoyingly single player games don't make as much money as multiplayer games now, multiplayer games tend to have a longer shelf life plus with all the annoying loot boxes/multiplayer dlc/extras that's the direction studios really aim towards, cos money.

is you're into strategy games, age of empires is awesome, especially with skirmish mode.