ToEE has a very accurate turn based implementation of the D&D 3.5 rules (probably the best edition of the rules so far). The feats, skills, weapons and spells are quite accurate to the books. The plot is based on one of the best known D&D scenarios (partially written by Gary Gygax himself). This would have been a 5 star game if not for its bugs. A must have for fans of turn based games (if they can put up with a few bugs)!