Been playing Dungeons and Dragons Online.
Surprisingly good. Ruleset is basically their own homebrew variant of 3.5e, many quests are direct adaptations of pnp modules. Original game was based in Eberron which is cool, but it also goes to other D&D universes. Sometimes this is just for a dungeon or two, but I think there's actually entire cities/campaigns for Forgotten Realms and Greyhawk. My favorite so far has been hands down the Ravenloft content.
The DMs are probably the one thing that set it apart from other D&D RPGs though. Each quest has a DM guide you through it, sometimes they're barely there other times the DM is commenting on things all the time with great voice acting. The latter is more common with newer content and generally, really fucking good. You'll even get DM narrations when you do things like pass a listen check when approaching a door or a spot check to notice a lever behind a waterfall.
An example of the kind of content you hear from the DM while progressing through a quest:
Also, there's some dungeons DM'd by Gygax and Dave Arneson.
Ravenloft content is some of the best D&D-based content I've played in any cRPG, all of it is a direct nearly 1:1 adaptation of the pnp material including the dungeon layouts/maps themselves. I spent like two hours being lost in Strahd's castle which is only a tiny part of the whole Barovia implemented in the game. Even minor characters from the module show up in the game.
Some quests are murderhobo stuff but a lot of quests have different ways to solve them based on how you build your character. Level layouts are pretty darn good and tend to have a lot of stat/skill checks for optional content or shortcuts like jump skill to reach otherwise inaccessible areas, swimming skill for e.g., swimming against a current or needing to hold your breath for a long time, strength checks to open a barred door, etc.,
Expect to get blown up by traps unless you play a rogue or artificer. They're lethal on higher difficulties.
If you decide to check it out, enter the code DDOFREEQUESTS ingame to unlock basically all the quest content for free, valid until august 31st something or other.
[edit]
Forgot to add that it has very limited resting when on quests, it has rest shrines similar to kotc campfires. On lower difficulties they're timed, on higher difficulties you can only use them once.