Ultima Underworld is a bit different from the mainline Ultima games. Those are fairly regular RPGs (though I'd say that IV through VII are really good RPGs), bu

Ultima Underworld is a bit different from the mainline Ultima games. Those are fairly regular RPGs (though I'd say that IV through VII are really good RPGs), but Ultima Underworld is more like an immersive sim. In fact it pretty much created the immersive sim genre. I personally kinda prefer UU2 over UU1, but they're both excellent.