"Socket Items represent the pinnacle of equipment customization in MU Online. By inserting powerful Seed Spheres into socket slots, you can transform ordinary gear into legendary equipment tailored to your exact playstyle."
Table of Contents
- Socket System Overview
- Obtaining Socket Items
- Seeds & Seed Spheres
- Weapon Seeds (Fire/Ice/Lightning)
- Armor Seeds (Wind/Water/Earth)
- Set Bonus Options
- Crafting Guide
- Pro Tips
Socket System Overview
Socket Items are special equipment pieces that have one or more socket slots (+Sockets). You can insert Seed Spheres into these sockets to add powerful bonus options to your gear.
Key Facts:
- Level Requirement: Socket items can be used at level 380+
- Socket Slots: Items can have 1-3 sockets (armor/1H weapons)
- 2-Handed Weapons: Can have up to 5 sockets
- Mastery Upgrade: Socket items can become "Mastery Socket Items" (level 400+)
- Additional Options: +Jewel of Harmony, +Jewel of Life, +Luck
Obtaining Socket Items
Monster Drops
Dropped by monsters in Raklion map. Higher level monsters = better socket items.
Boss Drops
Selupan and Medusa bosses drop high-quality socket items.
Mastery Transform
Non-mastery socket items can be transformed via Seed Master NPC.
Seeds & Seed Spheres
How the System Works:
- Create Seeds: Refine Excellent/Ancient items at Chaos Goblin Machine
- Create Seed Spheres: Combine Seeds at Seed Master NPC
- Insert Spheres: Place Seed Spheres into socket slots via Seed Master
- Upgrade Spheres: Upgrade inserted spheres up to Level 10
Weapon Seeds (Fire, Ice, Lightning)
Fire, Ice, and Lightning seeds can ONLY be inserted into weapon items.
| 🔥 Fire Seed Sphere Options | |
|---|---|
| ATK Speed | +7 ~ +16 |
| ATK/WIZ DMG per 20 levels | +1.1 ~ +2 |
| ATK/WIZ DMG | +20 ~ +63 |
| Min ATK/WIZ DMG | +20 ~ +63 |
| Max ATK/WIZ DMG | +30 ~ +73 |
| Reduced AG Consumption | +40% ~ +49% |
| ❄️ Ice Seed Sphere Options | |
|---|---|
| Restore HP per monster kill | +250 ~ +541 |
| Restore Mana per monster kill | +400 ~ +859 |
| Skill DMG | +37 ~ +100 |
| ATK Rate | +25 ~ +83 |
| Item Durability | +30% ~ +66% |
| ⚡ Lightning Seed Sphere Options | |
|---|---|
| Excellent DMG | +15 ~ +81 |
| Excellent DMG Chance | +10% ~ +19% |
| Critical DMG | +30 ~ +102 |
| Critical DMG Chance | +8% ~ +17% |
Armor Seeds (Wind, Water, Earth)
Wind, Water, and Earth seeds can ONLY be inserted into armor items.
| 💨 Wind Seed Sphere Options | |
|---|---|
| HP | +100 ~ +295 |
| Mana | +150 ~ +345 |
| AG | +70 ~ +226 |
| HP Auto-recovery Rate | +8% ~ +52% |
| Mana Auto-recovery Rate | +7% ~ +88% |
| AG Value | +5 ~ +23 |
| 💧 Water Seed Sphere Options | |
|---|---|
| DEF | +30 ~ +60 |
| DEF Rate | +10% ~ +19% |
| Shield item DEF | +100% ~ +600% |
| Decreases DMG | +4% ~ +13% |
| Reflects DMG | +5% ~ +14% |
| 🌍 Earth Seed Sphere Options | |
|---|---|
| STR | +6 ~ +24 |
| AGI | +1 ~ +18 |
| STA | +30 ~ +57 |
| ENE | +10 ~ +36 |
Set Bonus Options (Socket Combinations)
When you fill ALL socket slots with specific combinations of Seed Spheres, you can unlock powerful Set Bonus Options!
Bonus Tier System:
- Tier 1: 30% chance - Any Seed Sphere level
- Tier 2: 10% chance - Requires Seed Spheres Level 4+
- Tier 3: 10% chance - Requires Seed Spheres Level 8+
⚔️ Weapon Set Bonuses
| Combination | Tier 1 | Tier 2 | Tier 3 |
|---|---|---|---|
| Fire + Lightning + Ice | ATK +11 / WIZ +5 | ATK +22 / WIZ +10 | ATK +33 / WIZ +15 |
| Lightning + Ice + Fire | Skill DMG +11 | Skill DMG +22 | Skill DMG +33 |
🛡️ Armor Set Bonuses
| Combination | Tier 1 | Tier 2 | Tier 3 |
|---|---|---|---|
| Water + Earth + Wind | DEF +24 | DEF +27 | DEF +30 |
| Earth + Wind + Water | HP +29 | HP +31 | HP +33 |
Crafting Guide
Step 1: Create Seeds
Location: Chaos Goblin Machine
- Sacrifice Excellent or Ancient items
- Items are destroyed in the process
- Random elemental type seed created
Step 2: Create Seed Spheres
Location: Seed Master NPC
- Combine Seed with Sphere item
- Creates a Seed Sphere with random option
- Seed Sphere starts at Level 1
Step 3: Insert & Upgrade
Location: Seed Master NPC
- Insert Seed Sphere into socket slot
- Upgrade inserted spheres (up to Level 10)
- Higher levels = stronger options
Pro Tips
- Focus on 2H weapons first - 5 sockets = more power than 1H + shield
- Match seeds to your class - Fire ATK speed for melee, Ice Skill DMG for mages
- Upgrade before inserting - Higher level spheres have better stat ranges
- Don't give up on set bonuses - Keep reinserting until you get Tier 3
- Farm Raklion regularly - Best source for socket items
- Save your best Exc/Ancient items - Higher quality = better seed chances
Maximum Possible Bonuses
- Excellent DMG Chance: 70% max
- Critical DMG Chance: 80% max
- Decreases DMG: 60% max
- Reflect DMG: 70% max
- Shield DEF Increase: 1,800% max