A lot of gamers have expressed disappointment in Diablo III, not as a game but as a sequel to Diablo II. Oftentimes you'll see gamers make the stark comparison between the two and how the art-style, the skill setup and the atmosphere varies greatly from Blizzard North's iconic Diablo II.
Well, if you wanted something darker, deadlier and closer to what was accomplished in Diablo II, you'll probably want to keep your eye on NCSoft's upcoming MMOARPG, Lineage Eternal.
Now I know, the biggest drawback is that it's still an MMO and still forces you to be online but the upside is that the game actually makes use of the first two 'M's in "MMO". By that, I mean that Lineage Eternal is more of a next-gen MMOARPG, combining cinematic style elements with grand scale combat. Check out some videos below courtesy of Dotmmo (the first one shows town life and questing setups while the second video is a massive scale battle).
Basically, if you've been keeping track of this game since late last year this will probably already be on your radar. However, if you've grown bored of Diablo III or you realized it wasn't quite what you hoped it would be, you'll probably want to keep an eye on Lineage Eternal leading up to release, which is still heavily under development, according to MMOSite. The game, of course, will stay out of the marketplace until NCSoft cleans up on Guild Wars 2 first.
A few other games to keep your eye on if you're looking for something a little more as an ARPG is The Incredible Adventures of Van Helsing, Torchlight II, Infinity Blade Dungeons, Path of Exile and Grim Dawn.
For now you can check out the official fan site to keep up date on all things Lineage Eternal.