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.

Probability table (for Beta 18 and earlier

The following table shows the probabilities per skill level for versions Beta 18 and earlier. This table is outdated as of 1.0, particularly due to the removal of some quality levels, and the inability to craft Legendary items without mental inspirations.

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