Immersive, addictive, fun
Expect to die. (There are penalties, but you can go on, and if you're lucky, you'll retrieve your gold and XP).
I'm only starting this - level eleven (it's a quick progression), three or four quests done, a couple of talents acquired - and I enjoy it a lot. You're dumped in a meadow without knowledge of the world or the storyline, and you do the usual - loot bodies, collect random plants, bash up barrels, and fight whatever monsters come at you. (Some of them are… interesting.) The controls are somewhat hard to figure out (not all features are explained, and click-and-hold to fill empty slots only occurred to me after half a day and some unsuccessful googling) and if I'd realised that I can hit things by pressing 's' instead of clicking the mouse on the main action button, I would have died less.
But once you're there, you move around an immersive world, and very quickly I stopped thinking about what to do next and let my fingers do the walking/running/bashing.
This game lacks the last polish: sometimes the soundtrack stutters, I find the mutterings of the barbarian hard to understand, the interface is a little bit awkward and does not always react as expected, dialogues break in odd places. Otherwise it would have been a five-star game for me.
Runs great under Yosemite 10.2.