The sheer complexity of the game clearly guarantees some serious RPG fun. But, the problem is that there's a great deal of gamers out there that never bothered to research the intricate 3.5 AD&D rules. The fact is that during the game, newcomers will surely find themselves tangled up in a sea of RPG details. Such players might have a hard time deciding what feats and skills should be improved. Leveling each character has a great influence on how your team handles itself during combat. Most of the characters won't survive through a single battle unless they work on enhancing certain abilities or feats. To cut a long story short, the game becomes increasingly difficult for anyone who doesn't have experience with leveling specific character classes during gameplay. This drawback could've easily been circumvented if the developers took the time to fit in an optional predefined character leveling system that might help gamers get through this. A number of RPG's have already used such methods (NWN, Icewind Dale). Players who wasted their hard-earned experience points on pointless skills or feats will have a hard time keeping some of the party members alive as they progress through the levels. For that reason, inexperienced players are strongly advised to go through the game's manual, which features accurate descriptions of all characters and guidelines to the 3.5 AD&D rules. Just so you know the manual is also downloadable at the official web site of Wizards of the Coast - the file is in PDF format).​