Equipment in Ragnarok X: Next Generation can be refined by Refine/Inherit/Smelt NPC (Magic Furnace) in each major cities to make them more powerful. All equipment has a maximum upgrade level of +12, starting from +0.
| Refine | Success | Fail | Downgrade | Damage |
|---|---|---|---|---|
| +1 | 100% | – | – | – |
| +2 | 50% | 50% | – | – |
| +3 | 33% | 67% | – | – |
| +4 | 25% | 75% | – | – |
| +5 | 25% | 40% | 25% | 10% |
| +6 | 25% | 40% | 25% | 10% |
| +7 | 20% | 40% | 25% | 15% |
| +8 | 20% | 40% | 25% | 15% |
| +9 | 20% | 35% | 30% | 15% |
| +10 | 20% | 35% | 30% | 15% |
| +11 | 20% | 30% | 30% | 20% |
| +12 | 20% | 30% | 30% | 20% |

Rarity – white, blue, purple, gold
Part – weapon, armor, accessory
Do these have an effect? I upgrade all my 3 accessory, white, from 0 to 4 with minor failures, then blue armor with mild difficulty, but my blue weapon has been tried several times but cannot get past +2
eut
+3 to +4 has a chance to downgrade.