Quality

How Quality Works

Items have a numeric quality rating ranging from 1 to infinity. What the quality rating does, more exactly, varies from item to item, but the general point is that a higher quality value equals, quite simply, a better item. High quality food gives more food event points, high quality weapons deal more damage, and high quality armor soaks more damage. Some objects are slower to break when at high quality. The quality of an object is generally determined by the quality of the natural resources used in the making of the object, but also by the tools used in the process, like anvils, saws, smelters, the fuel used &c. The quality of natural resources are determined in several different ways, but most simple gatherings have their qualities determined by abstract quality points, placed randomly across the map. Base quality for most such objects (herbs, clay, soil, water, for example) is ten, when not under the influence of a quality point.

Sometimes, quality has no effect on an item, despite the item having a quality-value. Cosmetic equipment is an example of this.

Unless otherwise stated, all information on this wiki refers to items with a quality-value of 10.

Discussion

There is still much to be understood about the quality system. Use this section to discuss findings, theories, etc.

New crafting skills are sewing, smithing, carpentry, cooking, farming, and survival.

Quality of crafted goods can be dependent on any (including combinations) of the following: Quality of ingredients, crafter's skill level, and crafter's stats. Which of these three are used seems to vary from item type to item type.

Armor and Clothing

Backpacks and cosmetic clothing seem unaffected by quality.

Armor gets increased HP and AC as its quality increases. Details unknown.

Weapons

Weapons do more damage as their quality increases. Details unknown.

Food

Food gives more FEP as its quality increases. It seems that it's based on the Pre-Ragnarok FEP levels.

The FEPs gained by a piece of food is its base amount, multiplied by ${\sqrt {\frac {q}{10}}}$. -loftar

Evidence suggests that quality does not effect how much hunger food restores.

Miscellaneous

Water recovers more stamina per hunger as its quality increases. Details unknown.

Animals give higher quality items as their level increases.

Affected by your butchering tools and survival skill [1].

The quality of crafted items is equal to the average quality of the ingredients rounded down. However, it is also capped by the appropriate skill level of the crafter.

Different items have different weights in averaging the quality of a final product.

For example, a 50 QL bone combined with a 10 QL branch would make a 20 QL arrow, because a bone weighs 2 and a branch weighs 6. (The formula would be (50*2 + 10*6) / 8) - These are not the true weight values of these items, these are example values. [2]

From loftar

For buildable objects, the quality is almost always calculated as such:

• The qualities of items in the individual item types are averaged arithmetically.
• The resulting average qualities of the various types are also averaged arithmetically -- often with some weights on items that should be "obviously" more important (like the iron in iron plows) -- to create the quality of the built object.

For craftable items, most are calculated like this:

• As with buildable object, the qualities of the individual item types are averaged, and the weighted together based on importance.
• If one is using any tools, like a churn, anvil, or smithy's hammer, the qualities of those are averaged with the above resultant quality -- often with a weigth of 1/4 for the tool.
• If any character attributes are involved, those attributes themselves are averaged geometrically, and if the resultant "skill quality" is lower than the "input/tool quality", the resultant quality is the arithmetic average of the skill quality and the input/tool quality.

If you don't know what a geometric average is, it is the multiplication product of the individual values, raised to the power of the inverse of the number of values. In other words, averaging values $V_{1},V_{2},\ldots ,V_{n}$ geometrically means calculating $(V_{1}\cdot V_{2}\cdot \ldots \cdot V_{n})^{\frac {1}{n}}$.

As for ovens, kilns, smelter and finery forges, the quality of the resultant quality is the arithmetic average of the input item quality and the average of the oven quality and fuel quality, where the fuel quality is the arithmetic average of the fuel items put into the oven. In other words, if the item quality is $q_{i}$, the oven's quality is $q_{o}$ and the fuel's quality is $q_{f}$, the quality of the resulting item will be ${\frac {2q_{i}+q_{o}+q_{f}}{4}}$.

As for the skills involved in crafting, it should mostly be obvious, but there are, of course, a few things to clarify:

• Sewing related recipes (including leatherworking ones) use the Sewing and Dexterity values.
• Smithing related recipes often combine both Smithing and Strength.

Crafting formula

Calculate items used:

$q_{item}={\frac {\sum _{i=1}^{n}q_{i}w_{i}}{\sum w}}$

If there's a tool involved:

$q_{item}\leftarrow {\frac {3q_{item}+q_{tool}}{4}}$

If there are skill values $s_{1}$ through $s_{n}$ involved:

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://en.wikipedia.org/api/rest_v1/":): {\displaystyle q_{item} \leftarrow \left \lbrace \begin{array}{ll} \frac{q_{skill} + q_{item}}{2}, & \text{if\ } q_{skill} < q_{item} \\ q_{item}, & \text{otherwise} \end{array} \right \rbrace, \text{where\ } q_{skill} = {\left( \prod_{i = 1}^{n} s_i\right )}^{\frac{1}{n}} }

• Calculations will be made in order of top to down.

From jorb

I can add on that by saying that Psyche will be used for crafts that seem to require, or have their quality heavily based on, artistic or innovative qualities, for lack of better words. High-level stuff, basically. Cooking will probably be helped by perception.

There's still much about quality that isn't understood. If you're willing to share, please add your information here.