Thief: The Dark Project, in my opinion, was pretty tedious compared to the fast-moving sequel. It started out fine, but it got really dull and annoying when I reached the zombie-infested parts of the game which include levels like Down in the Bonehoard and The Haunted Cathedral. I loved it at first, seeing new types of opponent apart from the usual guards, but the fun dies out pretty quickly because of the level structure. This is'll be a complete nuisance if the difficulty's set on Expert. The objectives of levels which have zombies and burricks are pretty demanding and they're all not located in convenient places. It requires a lot of going back and forth, which means that sometimes you face the enemies all over again as it's impossible to kill more than 1 especially since they move around in groups, so a quick glance, dart and hide is done mostly throughout the game.