While the game mechanics can be a little difficult, and the puzzles linear, Lucius is just dripping with atmosphere. Horror fans will dig playing their own little interactive “Omen” from the anti-christ’s point of view. You just keep playing just to see how the story turns out.
There really isn’t any reason to replay this except for the achievements, but this game doesn’t tie into your Xbox 360 account, so there’s really no point. I would look through Steam’s achievement list before initial play and keep them in mind.
The game is rather short, as the average person can play through it in about 10 hours (perhaps more if you don’t view any walkthroughs). The game can be purchased on Steam for $24.99, which seems a tad high, given its longevity.