Arcanum has its fair share of flaws. Yet it is high up amongst my favourites, because despite its flaws it just hits all the right notes. A high fantasy world in the throes of an industrial revolution with a lot of steampunk thrown in for good measure, accompanied by a great and perfectly fitting soundtrack. Likeable companions, a great villain with a well-reasoned motivation, interesting lore and a nice twist on the usual 'Chosen One' routine. What Arcanum does best, though, is reactivity. Not only do mages, thieves, inventors etc. differ in how they play, but also in how the world treats them. But more than that, basically every choice you make for your character is ackowledged in some way, wether it is in-character decisions, stats, abilities, race, gender, companions or even wardrobe.
If you can stomache the boring combat and the occasional accordingly tedious dungeon crawl, give Arcanum a chance, you will not regret it.