Quality

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Quality is a stat: An item's quality is how well-made it is.

Quality	Beauty Factor	Comfort Factor	Protection Factor	Insulation Factor	Melee Damage Factor	Ranged Accuracy Factor	Market Value Factor	Deterioration Rate Factor
Awful	-0.1	0.40	0.4	0.7	0.4	0.7	0.4	2
Poor	0.5	0.85	0.85	0.9	0.85	0.93	0.8	1.25
Normal	1	1	1	1	1	1	1	1
Good	1.5	1.1	1.1	1.05	1.1	1.05	1.2	0.85
Excellent	3.5	1.3	1.5	1.15	1.35	1.2	2	0.63
Masterwork	5	1.4	1.7	1.2	1.45	1.35	3	0.51
Legendary	10	1.5	2.1	1.25	1.55	1.5	6	0.4

Some crafted items have a quality level, which affects their stats and is determined by the crafter's relevant skill.

When an item requiring a quality is finished, the quality is randomly determined using a standard distribution with a standard deviation of 1.25 quality levels and a mean of approximately one quality level per three skill levels. (Note that while every skill level typically increases the mean by one-third of a quality level, the jumps from levels 16 to 17 and 19 to 20 are twice as large as all others.) Template:Clr

If a crafted or built item has Excellent or above quality, a piece of random artwork will be engraved on it. It does not affect beauty beyond quality bonuses.

The following table shows the probabilities per skill level. You can squeeze extra x0.02-x0.08 of market value by deconstructing and retrying until the most likely quality, but this is only worth it for valuable low-work furniture and only if using a mod such as QualityBuilder, otherwise the extra walking will easily decimate the profit.

The following table is outdated for 1.0, see talk page.

Skill level	Awful	Poor	Normal	Good	Excellent	Masterwork	Legendary	Avg. Value
0 Barely heard of it	74.74%	5.96%	1.06%	0.10%	-	-	-	x0.47
1 Utter beginner	65.54%	9.23%	2.02%	0.24%	-	-	-	x0.50
2 Beginner	55.31%	13.38%	3.58%	0.52%	-	-	-	x0.53
3 Basic familiarity	44.72%	18.12%	5.95%	1.06%	0.01%	-	-	x0.58
4 Some familiarity	34.46%	22.95%	9.23%	2.02%	0.02%	-	-	x0.63
5 Significant familiarity	25.26%	27.16%	13.38%	3.58%	0.04%	-	-	x0.68
6 Capable amateur	17.55%	30.05%	18.12%	5.95%	0.10%	0.01%	-	x0.74
7 Weak professional	11.51%	31.08%	22.95%	9.23%	0.24%	0.02%	-	x0.81
8 Employable professional	7.13%	30.06%	27.16%	13.38%	0.52%	0.04%	-	x0.88
9 Solid professional	4.16%	27.17%	30.05%	18.12%	1.06%	0.10%	0.01%	x0.95
10 Skilled professional	2.28%	22.95%	31.08%	22.95%	2.02%	0.24%	0.02%	x1.02
11 Very skilled professional	1.39%	19.35%	30.50%	26.21%	3.13%	0.43%	0.03%	x1.08
12 Expert	0.82%	15.71%	28.81%	28.81%	4.66%	0.75%	0.07%	x1.15
13 Strong expert	0.47%	12.27%	26.21%	30.50%	6.69%	1.26%	0.13%	x1.22
14 Master	0.26%	9.23%	22.95%	31.08%	9.23%	2.02%	0.26%	x1.29
15 Strong master	0.15%	7.15%	20.08%	30.71%	11.63%	2.87%	0.41%	x1.36
16 Region-known master	0.09%	5.41%	17.15%	29.61%	14.30%	3.99%	0.66%	x1.44
17 Region-leading master	0.05%	3.99%	14.30%	27.87%	17.15%	5.41%	1.02%	x1.52
18 Planet-known master	0.03%	2.87%	11.63%	25.60%	20.08%	7.15%	1.54%	x1.62
19 Planet-leading master	0.02%	2.02%	9.23%	22.95%	22.95%	9.23%	2.28%	x1.72
20 Legendary master	0.01%	1.38%	7.15%	20.08%	25.60%	11.63%	3.29%	x1.84