The system Diablo employs internally to determine which monsters can drop which items is called Treasure Classes. Although the basics of Treasure Class are easy to understand, the details aren’t always clear. The system is unique in the sense that it doesn’t alter the way it operates, unless Blizzard alters the way it works. You could argue that the game knows which areas objects can be dropped and by whom. The remaining choice is left to the player and the [RNG] in deciding what drops.
The easiest method for the game to grant progress in gear is to restrict what can drop where. The game won’t have the toughest enemies when you start out in the Rogue Encampment. Also, you won’t be able to see the top weapons until later on in the game. This simple concept creates a more challenging game as you play however it also provides the equipment needed to counteract the difficulty later on. Both of these elements are the main progression of this game. Players will feel they’re fighting demons of great power and utilize the most unique artifacts available in the Sanctuary realm.
The Treasure Class (also called TC) is another attribute in the game’s mechanics, but it will not be utilized by players. It’s used to manage the game’s inner functions. Every single item that is in the game will be assigned an assigned TC as well as an TC number that could be compared with tiers. The TC itself marks what kind of item can be dropped. The TC number will be grouped into a more specific list of items belonging to that group. Let’s say that you have killed an animal. The game is now calculating what items to drop. (This information might not be correct for the sake of accuracy).
Every monster is assigned an Armor TC and an Weapon TC. The armor is picked.
You can drop TC3 and TC6 off the monster.
The TC3 is comprised of quilted Armor and Leather Armor
The TC6 is composed of Hard Leather Armor as well as Trellised Armor.
The RNG decides to select the TC6 Hard Leather Armor to fall.
The game will run it’s course based on the sort of magic or quality this item is going to have in the event that it has. It is well-known that Hard Leather Armor can be dropped in any form.
While the above information is not accurate, it explains how it is that the game could pick something to drop from an enormous monster. It is possible to draw a number of conclusions from the six bulletpoints below. Every monster has an assigned TC. They’ll vary based on the location of the monster’s birth point and the race of the monster, boss status, and the level of difficulty. There are monsters that may not possess all the TCs they need to drop items. Some monster races may not ever be able to drop weapons and armor due to the fact that they have no Weapon and Armor TC assigned to them. Next, we notice that monsters can have several Armor TCs assigned to it, where the most valuable TC is akin to the most advanced, better equipment. The highest TC’s value typically scales very close to what part of the game you’re in, meaning that the items within that TC are among the most effective within that range of difficulty. However, the highest TC is not picked as often than tiers slightly below the max. This means that players aren’t always getting the most efficient gear and if something does happen, it won’t be replaced in a hurry. Another thing that attracted our attention was the possibility of multiple items being included in one TC. Like we said the TC could include several items. Lastly, we find that the game decides upon the quality or magical status at the end. This is crucial for those who intend to apply their character to Magic Find. Because MF will not just create Harlequin Crest Shako drops, First, you need to be fortunate enough not to be able to get a Shako drop. Only then will MF influence the drop. That’s reason to know at least a little bit about Treasure Classes before you start looking for a specific item.
Below is a complete listing of all items’ Treasure Classes that are available in Diablo 2 or Diablo 2 Resurrected. This tutorial explains the role of Treasure Classes in the generation of items.
Treasure classes also give you an idea of the value the item could be when compared with other items.
Diablo 2 Treasure Class Explanation
The qlvls (quality level) in the following lists are the basic qlvls which determine their availability at vendors. The qlvls for set and unique items are the minimum level (Item level) the item must be to roll a unique or set item.
To know what kind of monsters might drop from each Treasure class, refer to the area Levels section that lists the kinds of objects (and their mods) that can be dropped from monsters. This will give you an idea of how high and where you can find the listed items.