I mean maybe its because it was a childhood favorite but I really do have fond memories of playing Diablo 2 in particular, being a Necromancer and just making an army of undead destroying fucking everything, it can get to the point where you can solo monsters designed to be fought in parties at some point.
Also you can make hybrid-builds so you don't just cast Amp damage/decrepify, you could also use bone and poison related attacks to bolster your army.
Obviously that's just one class, and my favorite in particular of D2, Eastern Sun rises was a mod that I also really liked playing since the enemies ere tougher but I could spawn as many (((golems)))
as I wanted as a Necro.
Damn I really do play as the necro a bit to much, maybe in the future I should try Barbarian, but I get the feeling I am the type of anon who listens to the same cd for 30+ years but with video games so that might be the reason why I have so much enthusiasm about D2.