> For the complete documentation index, see [llms.txt](https://kof-arena.gitbook.io/the-king-of-fighters-arena/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://kof-arena.gitbook.io/the-king-of-fighters-arena/gamefi/gems-and-sockets.md).

# Gems & Sockets

### Gems

* Gems are accessories that are put into the Sockets of Controllers to increase the 4 attributes of the Controllers.
* The Attributes of Controllers can be increased either by leveling up or paying Gems.
* Each Attribute has its own Gem, so there are a total of 4 types of Gems.
* You can obtain a higher level Gem by combining multiple Gems, as well.

### How to Obtain

* Gems are acquired by opening up Mystery Boxes.\ <mark style="color:red;">※ Gems are available through Mystery Boxes.</mark>
* Mystery Boxes can be obtained at a certain rate when you play a P\&E match with a Controller connected.\ <mark style="color:red;">※ Mystery Boxes require a certain amount of time before they can be opened and only one Mystery Box can be opened at once.</mark>\ <mark style="color:red;">※ You may use Black Diamonds to immediately open up a Mystery Box or open additional boxes.</mark>

### Effects of the Elements

* The Gems can increase the following Elements of the Controllers:

<table><thead><tr><th width="193" align="center">Elements</th><th align="center">Details</th></tr></thead><tbody><tr><td align="center">Efficiency</td><td align="center">Increases the amount of FM gained from a match.</td></tr><tr><td align="center">Luck</td><td align="center">Determines the probability of earning a Mystery Box.</td></tr><tr><td align="center">Comfort</td><td align="center">TBA in a later update.</td></tr><tr><td align="center">Resilience</td><td align="center">Determines the Durability Loss &#x26; Fixing Price.</td></tr></tbody></table>

### Combining Gems

* You can combine Gems of the same color and level.
* If successful, then you will obtain a Gem one grade higher.
* If unsuccessful, then you will lose all the Gems used for combination.
* Apart from the Gems used when combining, you will also need other payments to combine.

### Sockets

* Sockets allow Gems to be inserted in Controllers.
* You can insert Gems into the Sockets to increase the Attributes of the Controller.

### Socket Unlock

* The 4 Sockets on a Controller will be locked at first when you obtain a Controller.
* As the Controller’s level goes up, you will be able to unlock the Sockets.
* A certain amount of payment is required for unlocking the Sockets.

#### **Socket Unlock Rules by Controller Level**

| Level |         Added Function        |
| :---: | :---------------------------: |
|   5   | Gem Socket 1 Unlock Available |
|   5   |       Minting Available       |
|   10  | Gem Socket 2 Unlock Available |
|   15  | Gem Socket 3 Unlock Available |
|   20  | Gem Socket 4 Unlock Available |

### Socket Colors

* There are differently colored Sockets.
* Gems that do not match the color of the Socket cannot be inserted.

### Socket Grades

* The Socket grade does not limit which Gems can be inserted.
* Additional Attribute increases are applied when Gems are inserted into higher grade Sockets.

<mark style="color:red;">※ This Guide was written based on the test environment and may be subject to change in the future.</mark>