From Dark and Darker Wiki

Acknowledge

There is significant evidence that luck does not work as previously believed.
The wiki has been adjusted to better fit collected data. The benefit that 500 Luck now gives is closer to what 50 Luck was previously believed to provide.

I acknowledge that the information presented herein may not currently be true.

0
Loot Summary at 0 Luck
Type
Rarity
Utility
60.0%
Nothing
40.0%
Junk
40.0%
40.0%
Poor
40.0%
40.0%
Common
15.0%
15.0%
Uncommon
4.9%
4.9%
Rare
0.1%
0.1%

Wiki Discord Link

Loot Table at 0 Luck
NameLuck GradeLuck Grades present on the graph but missing in the column below are associated with dropping nothing.RarityTypeItem CountProbability
1PoorUtility140.0%
2CommonUtility115.0%
3UncommonUtility14.9%
4RareUtility10.1%