The Socket System in MuOnline allows players to enhance their equipment with additional attributes, providing customization options for gear and enabling more strategic gameplay. To utilize this system, players must first obtain items with empty sockets, which can drop from specific monsters or be acquired through certain quests or events.
Once an item with an empty socket is acquired, players need to visit the NPC Seed Master to create “Seeds.” Seeds are special enhancements that add specific attributes, such as increased attack power, defense, or recovery rates. Creating a Seed requires various items and currency (Zen), along with a specific recipe.
After creating a Seed, players combine it with a Seed Sphere to complete the enhancement. Spheres are available in different levels (1 to 5), each level offering varying effects. Spheres can be found as monster drops, particularly in the Raklion area. By combining a Seed with a Seed Sphere, the player can insert it into the socketed item, activating the chosen attribute.
The Socket System adds depth to the equipment system in MuOnline, allowing players to tailor their gear to better suit their play style and the challenges they face.
Socket System MuOnline: How it works?
- Obtain an Empty Socket Item.
- Create a Seed and combine it with a sphere to achieve a Socket Item with options.
NPC LIST

Seed Master
- NPC Location: Elveland (46, 243) and Noria (169,101)
- Option 1: Create Seed
- Option 2: Add Seed in Sphere

Seed Researcher
- NPC Location: Elveland (50, 243) and Noria (167,98)
- Option 1: Add Seed Sphere in Socket Items
- Option 2: Remove Seed Sphere from Item

Step 1: Get empty socket items.
These items can be obtained from monsters in the Raklion area. EXC Socket items can be obtained from few bosses on FortMU Server.
Look now: Golden Monsters & Bosses Rewards
Step 2: Create a seed through the NPC Seed Master in Elveland.
Required Items:
- Excellent Item (level +4 or above) – 1
- Set Item (level +4 or above) – 1
- Jewel of Harmony – 1
- Jewel of Chaos – 1
- Jewel of Creation – 1
- Zen – 1,000,000






Ancient item+4+add (minimum) + Excellent Item+4+add (minimum) + 1x Jewel of Chaos + 1x Jewel of Creation + 1x Jewel of Harmony = Seed
Seed Recipe:
The success rate depends on the level and items used for combination. If successful, it creates one of the seeds listed below.
Image | Type | Options |
---|---|---|
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Fire |
Attack/Wizardry damage increase (pro rata to level) Attack speed increase Maximum attack/Wizardry damage increase Attack/Wizardry damage increase |
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Water |
Defense success rate increase Defense increase Shield defense increase Damage reduction Damage reflection |
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Earth | Stamina increase |
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Wind |
Life auto recovery increase Maximum Life increase Maximum Mana increase Automatic Mana recovery increase Maximum AG increase AG value increase |
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Lightning |
Excellent damage increase Excellent damage rate increase Critical damage increase Critical damage success rate increase Auto HP increase after monster death Auto Mana increase after monster death |
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Ice |
Skill damage increase Attack success rate increase Item durability increase |
When it fails, all the jewels will disappear and Excellent or Set items will randomly downgrade to level 0~2.
STEP 3. Combine a seed and a sphere to get a Seed Sphere.

It has no functionality or effects on its own, and it cannot be mounted in a socket by itself. To use it, visit the NPC Seed Master and combine the seed with a seed sphere.





Seed + Empty Sphere + 1x Jewel of Chaos + 1x Jewel of Creation = Seed Sphere
Where you can find Sphere’s?
The spheres necessary to create a Seed Sphere can be found on the Raklion map. Spheres are available from level 1 to 5. Below, you will find information about each of them and the monsters they drop from.
Seed name | Lvl | Monster id |
---|---|---|
Sphere (Mono) | 1 | Ice Walker |
Sphere (Di) | 2 | Ice Giant |
Sphere (Tri) | 3 | Iron Knight |
Sphere (Tetra) | 4 | Dark Coolutin |
Sphere (Penta) | 5 | Dark Iron Knight |
Seeds for weapons
Image | Type | Options | Sphere level 1 | Sphere level 2 | Sphere level 3 | Sphere level 4 | Sphere level 5 |
---|---|---|---|---|---|---|---|
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Fire | (Level type) Attack/Wizardry increase | 20 | 19 | 18 | 17 | 15 |
Attack speed increase | 15 | 30 | 35 | 36 | 37 | ||
Maximum attack/Wizardry increase | 30 | 32 | 35 | 40 | 50 | ||
Minimum attack/Wizardry increase | 20 | 22 | 25 | 30 | 35 | ||
Attack/Wizardry increase | 20 | 22 | 25 | 30 | 38 | ||
AG consumption decrease | 40% | 41% | 42% | 43% | 45% | ||
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Ice | Increases Life when monster is killed | 8 | 7 | 6 | 5 | 4 |
Increases Mana when monster is killed | 8 | 7 | 6 | 5 | 4 | ||
Skill damage increase | 37 | 40 | 45 | 50 | 60 | ||
Attack rate increase | 25 | 27 | 30 | 35 | 40 | ||
Item durability increase | 30% | 32% | 34% | 36% | 38% | ||
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Lightning | Excellent damage increase | 150 | 250 | 350 | 450 | 550 |
Excellent damage rate increase | 12% | 13% | 14% | 15% | 16% | ||
Critical damage increase | 350 | 380 | 400 | 450 | 500 | ||
Critical damage rate increase | 8% | 9% | 10% | 11% | 12% |
Seeds For Armor (Set Items)
IMAGE | TYPE | OPTIONS | SPHERE LEVEL 1 | SPHERE LEVEL 2 | SPHERE LEVEL 3 | SPHERE LEVEL 4 | SPHERE LEVEL 5 |
---|---|---|---|---|---|---|---|
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Wind | Automatic Life recovery increase | 100 | 120 | 140 | 180 | 220 |
Maximum HP increase | 4% | 5% | 6% | 7% | 8% | ||
Maximum Mana increase | 4% | 5% | 6% | 7% | 8% | ||
Automatic Mana recovery increase | 80 | 130 | 220 | 290 | 370 | ||
Maximum AG increase | 260 | 310 | 360 | 410 | 520 | ||
Automatic AG recovery increase | 10 | 15 | 20 | 30 | 40 | ||
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Water | Block rate increase (PvM) | 10% | 11% | 12% | 13% | 14% |
Defense increase | 30 | 33 | 36 | 39 | 42 | ||
Shield skill protection increase (for Shield+skill) | 1% | 2% | 3% | 4% | 5% | ||
Damage reduction | 4% | 5% | 6% | 7% | 8% | ||
Damage reflection | 5% | 6% | 7% | 8% | 9% | ||
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Earth | HP increase | 100 | 200 | 300 | 400 | 500 |
Seed Spheres Type
Empty Sphere lvl 1 | ![]() |
Empty Sphere lvl 2 | ![]() |
Empty Sphere lvl 3 | ![]() |
Empty Sphere lvl 4 | ![]() |
Empty Sphere lvl 5 | ![]() |
Bonus Socket System
IMPORTANT: By inserting three types of seeds in the specified order (see table below), you have a chance to receive an additional random Socket bonus.
Items | Socket (slot 1) | Socket (slot 2) | Socket (slot 3) | Options | Success rate |
---|---|---|---|---|---|
Swords, Axes, Maces, Bows, Crossbows, Scepters | Fire Sphere | Lightning Sphere | Ice Sphere | Attack power increase +50 | 30% |
Swords, Axes, Maces, Bows, Crossbows, Scepters | Lightning Sphere | Ice Sphere | Fire Sphere | Skill attack increase +50 | 30% |
Staffs, Sticks | Fire Sphere | Lightning Sphere | Ice Sphere | Attack/Wizardry increase +50 | 30% |
Staffs, Sticks | Lightning Sphere | Ice Sphere | Fire Sphere | Skill attack increase +50 | 30% |
Helms, Armors, Pants, Gloves, Boots, Shields | Water Sphere | Earth Sphere | Wind Sphere | Defense increase +100 | 30% |
Helms, Armors, Pants, Gloves, Boots, Shields | Earth Sphere | Wind Sphere | Water Sphere | Maximum HP increase +500 | 30% |
Socket Bonus Options
IMPORTANT: By including the following seed types in your Socket items, you can receive the additional bonus options listed below.
Items | Necessary Seed Spheres in Item | Options | Success rate | ||||
---|---|---|---|---|---|---|---|
Using all Seed Spheres | Fire Sphere | Water Sphere | Ice Sphere | Wind Sphere | Lightning Sphere | Double damage rate +3% | 100% |
Fire Sphere | Water Sphere | Ice Sphere | Wind Sphere | Earth Sphere | Ignore opponent defense by 1% | 100% |
Socket System MuOnline: Tutorial from Game
First – get from Bosses reward “Item EXC with Socket Slots”

Next, go to Raklion on spot and kill the monsters for drop “Sphere”.

You need to have Ancient Item (from LOT Monsters drop or some bosses / Chaos Castle or Imperial Guardian Events) for create combine.
You need to have 380 lvl EXC Item (from Bosses or Events) for create combine.


You need to have Jewel of Harmony. You can create this jewel from Gemstone. Kill monsters on Kanturu Relics map for obtain Gemstones.

Next you can go to Aida to NPC Elpis (83,15) and click option “Refine Gemstone“

Simply exchange the Gemstone for the Jewel of Harmony.

Now you need to have 1 Jewel of Creation and Chaos too (from drop monsters).
Go to NPC “Seed Master” for create a SEED.
Select “Seed Extraction“

Put the all required items and click combine “Extraction“.


Reasult: Seed (Water)

Now we can create Seed Sphere.
Use “Seed Sphere Assembly“.

Put now required items.

Click “Assembly“

And we have “Seed Sphere (Water)“

Now, go to NPC named “Seed Researcher” and click option “Seed sphere aplication“

Put the required items. You must choose the slot number of socket application.

Now just click “Application“

Nicely. We have first socket option applicated to the item!

Remember! If you need destroy the socket option from your item, you can use NPC “Seed researcher” option “Seed sphere destruction” That’s all!
