Arx Fatalis is a good solid RPG. If you dont mind the slightly dated graphics I highly recommend you try it out.
If you go find Arx Libertatis, its a 'mod' for the game, it'll use the game files that you download through Steam, but optimize the game for use on newer machines. Unfortunately it didnt count me as playing on Steam so my game time counter didnt go up.
Initally I was a lil skeptical of the onscreen gestural magic stuff, I've never been good at drawing symbols with a mouse but the game lets you precast three spells to hotkeys so you can instant cast later which is awesome. Melee is basic but effective: hold mouse button, gem glows, more it glows the more damage you do, release mouse to strike.
Anyways sound is decent, graphics are dated but not ugly, theres a combine/crafting system so you can make things like a fishing pole from a piece of wood and rope, and theres potion brewing. You might need a paper and pen to keep track of everything, the journal isn't very helpful.
In closing definitely worth getting, especially at $5.