Simple weapon

All characters except a druid, monk, or wizard is proficient with all simple weapons. In DnD 3.5 a character takes a -4 penalty to attack rolls when using a weapon she/he is not proficient with. In NWN a character cannot wield a weapon they do not have the proficiency for.

Some simple weapons are: Dagger, Mace, Club, Morningstar, Spear, Quarterstaff, Crossbow, Dart, and Sling.