In the most general sense, these are the things the characters are carrying. Also, there is a number of special quest items in each game which are necessary to win the game.
There are several categories of equipment:
When a piece of equipment is found in the maze, it is usually unidentified. Only its category is given after a question mark ("?"), which indicates the unidentified status. Garth can identify objects for a certain price.
There are certain pieces of equipment that can only be used by characters of a certain class. If a character cannot use or equip an object, it is marked with a "#".
Some of the things have magical powers, which usually means that they can be "used" either during combat or when the party is camping.