Man, I remember spending tons of time on Nox, I think I've gone through the game several times with each class. It probably also bears mention the game had branching storylines (and severely so) based on class selection. Kinda liked the sense of humour too, though I hadn't played the game for years so my tastes may well have changed by now.
I don't really agree about Dungeon Siege II, it wasn't a bad game but if you're only including one game in a series, I'd say the first Dungeon Siege was better, especially if you had Legends of Aranna installed (I have very fond memories of exploiting Polymorph in the hidden level
). If I had to point out specific reasons, I feel the greater variety of skills made the game more interesting overall and I liked the idea behind letting a player run a bigger group of heroes by giving companions fairly advanced (for the time) AI and allowing active pause. I also recall seeing a bunch of cool mods for the game.
No complaints about PoE, TQ and Torchlight, solid games all around.
I hadn't played Grim Dawn, sadly it won't run on my hunk'o'junk PC, but I've seen my buddy play it and it looked fun.
Didn't play Marvel Alliance or Diablo 3, but I'm not really tempted to either. Superheroes are just not my ballpark and I'm skipping Diablo 3 on principle (if I could even run it in the first place
) on account of locking single-player specific content behind online connection.
I've seen Arcanum mentioned in the comments. AMAZING game, but I don't really think it qualifies as an action RPG.
Magicka/Magicka 2 probably deserves a mention, if you consider it to have an RPG component.
Darkstone was pretty great for its time.
I feel like I'm still missing some good stuff, it's not easy just dropping titles off the top of my head like that, I'll probably just edit it in later :d
Edit 1: Oooh, Ultima 8 was isometric and combat was not turn based, so I'm guessing it counts. There were also some other isometric entries in the series and those games are bloody classics. Also, weren't the earlier games in Divine Divinity series isometric? I've only played Original Sin and iirc it already had controllable camera, but it was pretty cool and if the older games match up in terms of gameplay, they might deserve a spot.
Edit 2: Now that I think about it, Darkstone and Dungeon Siege both had the option to pan the camera up and down, so they can't really be called isometric games. Same, of course goes for Dungeon Siege 2, which made it into article's list to which I can only say "TFW?". And since this is as good as opportunity as any, how about Sid Meier's Pirates! Gold? While the original wasn't isometric, iirc Gold's camera was fixed in the naval battle and travel modes which constituted the bulk of the game. If I'm misremembering though, Windward is also hella fun, absolutely isometric and it has the added benefit of, like Pirates, being something different than the usual hack&slash fare traditionally associated with isometric aRPGs.