Equipment enhancement
From UO:PvE Wiki
Enhancement checks, material conversion and the rolls that can destroy an item.
Development source reviewed on 29 October 2026. In-game availability is unverified.
What can be enhanced#
The normal enhancement path accepts weapons and armour in your backpack. The item must still use a standard resource, the selected material must be nonstandard, and the exact item type must have a recipe in the chosen craft system. Arcane equipment currently carrying an arcane charge is rejected. Normal tool, station, material, resource and crafting-skill checks still apply.
Enhancement applies a new resource to existing equipment. It is separate from the shard’s refinement system. A successful enhancement consumes the full recipe resource requirement and changes the item’s resource; failure and breakage consume half through the shared resource-consumption code. Breakage also deletes the item.
Risk checks#
The base risk value B starts at 20. If the integer portion of the effective crafting skill S is at least 100, the code subtracts trunc((S − 90) / 10). Thus the base value is 19 at 100.0 skill, 18 at 110.0 and 17 at 120.0.
The code checks applicable properties in sequence: physical, fire, cold, energy, poison, durability, luck, lower requirements and damage increase. Each check draws an integer from 0 to 99. A roll below 10 produces ordinary failure. Otherwise, a roll below that check’s risk value breaks the item. Once a check fails or breaks the item, later checks do nothing. All applicable checks must pass for success; there is no single universal enhancement-success percentage.
| Applicable check | Risk value |
|---|---|
| Armour resistance increased by the material | B + the item’s current resistance of that type |
| Weapon elemental damage supplied by the material | B; the normal weapon path leaves its local resistance values at zero |
| Material adds durability | B + trunc(maximum durability / 40) |
| Material adds luck | B + 10 + trunc(current luck / 2) |
| Material lowers requirements | B + trunc(current Lower Stat Requirements / 4) |
| Weapon already has positive Damage Increase | B + trunc(current Damage Increase / 4) |
Source notes
Show 5 references
These references identify the reviewed shard files. Source presence does not establish live availability.
Projects/UOContent/Engines/Craft/Core/Enhance.cs:23
Eligibility, current resource, recipe and material checks.Projects/UOContent/Engines/Craft/Core/Enhance.cs:128
Weapon and armour values and applicable risk flags.Projects/UOContent/Engines/Craft/Core/Enhance.cs:185
Skill adjustment and ordered risk checks.Projects/UOContent/Engines/Craft/Core/Enhance.cs:239
Resource consumption, conversion and item destruction.Projects/UOContent/Engines/Craft/Core/Enhance.cs:313
Random failure/breakage comparison and early exit.
Category: Crafting & resources