> For the complete documentation index, see [llms.txt](https://lng.gitbook.io/lng-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://lng.gitbook.io/lng-docs/companion-mod/basics/profiles-lngcompanion-transmuterconfig-json.md).

# profiles\LNGCompanion\TransmuterConfig.json

***

#### 🎰 `TransmuterConfig.json` Overview

The `TransmuterConfig.json` file controls the Companion's "Transmuter" gambling device. It allows you to define specific "Tiers" or recipes. When a player inserts the correct combination of cards into the device, it consumes them and rolls for a random reward from that tier's custom loot pool.

***

#### ⚙️ How the Structure Works

| **Property**       | **Type** | **Description**                                                                                                      |
| ------------------ | -------- | -------------------------------------------------------------------------------------------------------------------- |
| `Tiers`            | `Array`  | The master list containing all the different Transmuter recipes.                                                     |
| `TierName`         | `String` | The internal name for the tier (e.g., `"NormalGuns"` or `"LegendaryItems"`).                                         |
| `RequiredCards`    | `Array`  | The exact classnames of the items (usually 4 cards) the player must place into the Transmuter to activate this tier. |
| `PotentialRewards` | `Array`  | CRITICAL: The loot pool the device will pick from. Must be formatted as `"Classname,Chance"`.                        |

**💡 Quick Guide: Balancing the Loot Pool (The Chance System)**

The `PotentialRewards` array uses a comma-separated format: `"ItemClassname,Weight"`.

* The `Weight` (or chance) is a decimal number (like `0.1`, `0.8`, or `1.0`).
* Higher numbers mean the item is much more likely to be chosen. Lower numbers (like `0.1`) should be used for ultra-rare jackpot items.
* Format Rule: Never use spaces around the comma.
  * *Correct:* `"mwp1_sniperrifle_1,0.1"`
  * *Incorrect:* `"mwp1_sniperrifle_1", 0.1`

***

#### 💻 Example Configuration

Below is a condensed example showing how to set up a basic Gun and Item tier. *(Note: The default config contains hundreds of weapons and items, this snippet is just to show the proper structure).*

JSON

```
{
  "Tiers": [
    {
      "TierName": "NormalGuns",
      "RequiredCards": [
        "LNG_Card_Gun_Normal_1",
        "LNG_Card_Gun_Normal_2",
        "LNG_Card_Gun_Normal_3",
        "LNG_Card_Gun_Normal_4"
      ],
      "PotentialRewards": [
        "mwp1_sniperrifle_1,0.1",
        "mwp1_mashinegun_1,0.1",
        "KCG_W_TSRS_T1_Black,0.8",
        "BZ_Snafu_Baller_Black,0.8"
      ]
    },
    {
      "TierName": "LegendaryItems",
      "RequiredCards": [
        "LNG_Card_Item_Legendary_1",
        "LNG_Card_Item_Legendary_2",
        "LNG_Card_Item_Legendary_3",
        "LNG_Card_Item_Legendary_4"
      ],
      "PotentialRewards": [
        "YRTSK_Powerful_CarBattery,1.0",
        "sci_fi_sword,0.5",
        "Meru_invis_NVG_Headstrap,0.1",
        "Gems_Super_1,0.1"
      ]
    }
  ]
}
```

***


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