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I've never played any of the Diablos, or met anyone who has. But they are obviously popular for a reason. Are they worth going back to the first one?
Edit: Thanks for the answers, the community is alive! Based on you recommendations it looks like I'm going to give 2 resurrected a try.
Thanks! I'll look for resurrected then. If you don't mind replying, what is with the massive appeal of the game?
If you're into character progression, and loot, then you'll love Diablo. The loot system is great and really draws you in to playing more.
The art and ambiance is also amazing, and from what I can tell Resurrected is pretty faithful to the original.
There are some rough parts (like stamina, chugging potions, etc) given the age.
You have to remember that this game came out a long time ago, it had many features at the time that set it above other games.
It had a good storyline, multiplayer, maps that would change every time you logged in (multiplayer), the ability to be powerful after spending a lot of time in the game (and if you saw anyone with a rare/cool looking armor you know they worked for it, there were no lootbox mechanics where you could just pay money for it). And of course... there is no cow level ;) The skill tree allowed for tons of different abilities and combos, or you could grind away at a single skill and become godly with it.
You may not recognize the appeal to the game now just because so many of the mechanics have been copied and implemented in countless other games since then.
Appeal of Diablo in general, or 2 specifically? For 2 specifically, it's a lot of nostalgia. It was one of the most popular games when it came out and for years afterwards. A lot of the aspects of the game design still hold up really well even today, and still draw you in with trying to get more loot, trying a different build, etc.