Criatura Academy
Systems · Game systems

Refining 제련

From the official kRO Zero game guide, translated. Original part read from images

Gravity edits this page in place and does not date it. This is the official page's text as of 15 Sept 2026, unchanged since we first captured it on 7 Aug 2026.

What is the Refine System?

This is a system that enhances the stats of your current weapon or armor. If refining succeeds, a 'SUCCESS' message will be displayed, and the item's refine level will increase by +1. However, if refining fails, please note that the item used for refining, the cost, and any cards equipped in the sockets will all be destroyed and lost.

Refine

Refining can be done through the Blacksmith NPC at the smithy in each town, and the smithy is marked with a hammer icon on the minimap.

Refine

Equipped GearRequired MaterialMaterial PriceRefine CostOn Failure
Level 1 WeaponPhracon200 Zeny1,000 ZenyEquipment Lost
Level 2 WeaponEmveretarcon1,000 Zeny2,000 ZenyEquipment Lost
Level 3 WeaponOrideconMonster Drop10,000 ZenyEquipment Lost
Enriched OrideconNPC Exchange10,000 ZenyEquipment Lost
Highly Concentrated OrideconNPC Exchange20,000 ZenyOnly usable on +7~9 refine weapons
On failure, refine level -1
Level 4 WeaponOrideconMonster Drop10,000 ZenyEquipment Lost
Enriched OrideconNPC Exchange10,000 ZenyEquipment Lost
Highly Concentrated OrideconNPC Exchange20,000 ZenyOnly usable on +7~9 refine weapons
On failure, refine level -1
ArmorEluniumMonster Drop10,000 ZenyEquipment Lost
Enriched EluniumNPC Exchange10,000 ZenyEquipment Lost
Highly Concentrated EluniumNPC Exchange20,000 ZenyOnly usable on +7~9 refine weapons
On failure, refine level -1

Over Refine

For armor or weapons at +10 refine or higher, special refine stones are required instead of normal refine materials.

Over Refine

Equipped GearRequired MaterialMaterial PriceRefine CostOn Failure
WeaponBradiumMonster Drop10,000 ZenyOn failure, refine level -3
20% chance of equipment loss
High Density BradiumNPC Exchange10,000 ZenyOn failure, refine level -1
ArmorCarniumMonster Drop10,000 ZenyOn failure, refine level -3
20% chance of equipment loss
High Density CarniumNPC Exchange10,000 ZenyOn failure, refine level -1

Refine Success Rate

Refine Level Armor Normal Armor Special Lv1 Weapon Normal Lv1 Weapon Special Lv2 Weapon Normal Lv2 Weapon Special Lv3 Weapon Normal Lv3 Weapon Special Lv4 Weapon Normal Lv4 Weapon Special
1 90% 100% 90% 100% 90% 100% 90% 100% 90% 100%
2 90% 100% 90% 100% 90% 100% 90% 100% 90% 100%
3 90% 100% 90% 100% 90% 100% 90% 100% 90% 100%
4 80% 100% 90% 100% 90% 100% 90% 100% 80% 100%
5 60% 90% 90% 100% 90% 100% 80% 100% 60% 90%
6 40% 70% 90% 100% 80% 100% 60% 90% 40% 70%
7 40% 70% 80% 100% 60% 90% 50% 80% 40% 70%
8 20% 40% 60% 90% 40% 70% 20% 40% 20% 40%
9 20% 40% 40% 70% 20% 40% 20% 40% 20% 40%
10 9% 20% 19% 30% 19% 30% 19% 30% 9% 20%
11 8% 8% 18% 18% 18% 18% 18% 18% 8% 8%
12 8% 8% 18% 18% 18% 18% 18% 18% 8% 8%
13 8% 8% 18% 18% 18% 18% 18% 18% 8% 8%
14 8% 8% 18% 18% 18% 18% 18% 18% 8% 8%
15 7% 7% 18% 18% 18% 18% 18% 18% 7% 7%
16 7% 7% 17% 17% 17% 17% 17% 17% 7% 7%
17 7% 7% 17% 17% 17% 17% 17% 17% 7% 7%
18 7% 7% 17% 17% 17% 17% 17% 17% 7% 7%
19 5% 5% 15% 15% 15% 15% 15% 15% 5% 5%
20 5% 5% 15% 15% 15% 15% 15% 15% 5% 5%

Additional Refine Effects

Weapon Refine Basic Effect

Depending on the refine level, ATK and MATK increase, and the increase is shown on the status window.

Weapon Refine Basic Effect

RefineLv1 WeaponLv2 WeaponLv3 WeaponLv4 Weapon
ATK / MATK
Increase
12357
2461014
3691521
48122028
510152535
612183042
714213549
816244056
918274563
1020305070
1122335577
1224366084
1326396591
1428427098
15304575105
164880112160
175185119170
185490126180
195795133190
2060100140200

Weapon Refine Special Effect

Depending on the refine level, there is an additional increase to ATK and MATK, with a minimum value of 1 and maximum values as shown in the table below.

Weapon Refine Special Effect

RefineLv1 WeaponLv2 WeaponLv3 WeaponLv4 Weapon
ATK / MATK
Increase
1----
2----
3----
4----
5---14
6--828
7-51642
83102456
96153270
109204084
1112254898
12153056112
13183564126
14214072140
15244580154
16275088168
17305596182
183360104196
193665112210
203970120224

Armor Refine Basic Effect

RefineArmor
DEF Increase110
220
330
440
560
680
7100
8120
9150
10180
11210
12240
13280
14320
15360
16400
17450
18500
19550
20600

Thor's Flame

At the smithy, in addition to the NPC that performs refining, there is also the Thor's Flame NPC, who combines various minerals.

Thor's Flame

Refine Stone Combination

Thor's Flame

Combination MaterialsResult
Refine StoneQuantityMaterialQuantity
Oridecon1Gel Star1Enriched Oridecon
Zeny500,000 Zeny
Elunium1Gel Star1Enriched Elunium
Zeny500,000 Zeny
Enriched Oridecon1Gel Star4Highly Concentrated Oridecon
Zeny1,000,000 Zeny
Enriched Elunium1Gel Star4Highly Concentrated Elunium
Zeny1,000,000 Zeny
Bradium1Gel Star5High Density Bradium
Zeny1,500,000 Zeny
Carnium1Gel Star5High Density Carnium
Zeny1,500,000 Zeny

Special Material Combination

Thor's Flame

Combination MaterialsResult
Material 1QuantityMaterial 2QuantityMaterial 3Quantity
Mythril Ore10Mithril
Highly Concentrated Oridecon10Mithril1Zeny2,000,000 ZenyBlacksmith Blessing
Highly Concentrated Elunium
High Density Bradium
High Density Carnium

Mineral Combination

Thor's Flame

Combination MaterialsResult
GradeMaterialQuantityItemQuantity
Low-Grade MineralIron Ore5Phracon x2
Emveretarcon x1
Coal x1
Steel x1
Rough Elunium x1
Rough Oridecon x1
Steel5

※ When using Iron Ore or Steel as materials, you will obtain 1 of the 6 results shown on the right.

Thor's Flame

Combination MaterialsResult
GradeMaterialQuantityItemQuantity
Mid-Grade MineralCoal5Rough Elunium x2
Rough Oridecon x2
Elunium x3
Oridecon x3
Gold x1
Steel5

※ When using Coal or Steel as materials, you will obtain 1 of the 5 results shown on the right.

Thor's Flame

Combination MaterialsResult
GradeMaterialQuantityItemQuantity
High-Grade MineralElunium3Green Live x3
Crystal Blue x3
Red Blood x3
Wind of Verdure x3
Great Nature x1
Mystic Frozen x1
Flame Heart x1
Rough Wind x1
Oridecon3

※ When using Elunium or Oridecon as materials, you will obtain 1 of the 8 results shown on the right.

Thor's Flame

Combination MaterialsResult
GradeMaterialQuantityItemQuantity
Premium MineralElunium7Garnet 1~2
Amethyst 1~2
Emerald 1~2
Pearl 1~2
Ruby 1~2
Sardonyx 1~2
Sapphire 1~2
Opal 1~2
Topaz 1~2
Zircon 1~2
1carat Diamond 1~2
Aquamarine 1~2
Oridecon7

Thor's Flame

Combination MaterialsResult
GradeMaterialQuantityItemQuantity
Special MineralPeridot2Peridot x1
Phlogopite x1
Agate x1
Muscovite x1
Rose Quartz x1
Turquoise x1
Pyroxene x1
Citrin x1
Gold x1
Emperium Anvil x1

One of the above minerals will be randomly generated.
Phlogopite2
Agate2
Muscovite2
Rose Quartz2
Turquoise2
Pyroxene2
Citrin2

※ Information on the website may be subject to change according to game updates.