Not amazing but surprisingly good.
The game-play is extremely simple, with most attacks coming from just clicking the mouse and the hot-key spells don't do much to spice things up, but that somehow doesn't make it at all boring.
The voice acting is well done, and the music and sound effects are really well done, simple yet effective, like the rest of this game...I think the only real problem i found with this game was the severe lack of inventory space, although this was solved to an extent using the teleport system, and running to the nearby merchants.
So all in all titan quest offers highly addictive game-play, with great sound and graphics to create a truly remarkable game- i recommend it for anyone looking for a good old fashioned rpg