Thank god they improved on the first one!!

The original Thief was a game fraught with imperfections and truly irritating elements, despite exhibiting a diverse range of new and original features. The game showed more potential than any traditional FPS, introducing an entirely new approach to the genre. Never-before-seen features within the genre such as light displays (a symbol of changing brightness in accordance with surrounding light levels), sound displays, accurate sensory representations within the enemies and a vast array of medievil weapons assured the game a firm and permanent place with its fans. Unfortunately, whilst all the fundamentals were in place, both graphically and in terms of gameplay, the levels simply did not live up to the what we may have hoped, or even the expectations established by the very first level.
It will come as a relief to those sharing this viewpoint, therefore, that the vastly superior sequel not only in the scale and diversity of the levels, but also in their numeracy and graphical content. Glitches have been ironed out and the engine has been drastically improved, making for a more solid game. Since the original, an abundance of new weapons have also been added, enhancing the game's already comprehensive range of stealth, tactical and offensive weaponry (an addition very much mandatory considering the strangth of some of your new foes).
Evidently paying close attention to the criticisms of the first game, the developers have adopted a slightly different perspective upon medievil thievery. Gone are the abundant hordes of zombies that plagued the games previous incarnation, entirely ruining the atmosphere and approach taken by the game's first level. Thief II boastes levels that are both entertaining and involving, with an equally apt range of enemies, such as fairly intelligent guards, pitiful peasants, and erm...evil robots.