Modding

Berry Jam

Adds berry jam (crafted from blueberries and a clay pot) and lets rope stack to 50.

Updated 11 Oct 2026

Adds berry jam (crafted from blueberries and a clay pot) and lets rope stack to 50.

Mod id example.berryjam.

A data mod: copy this folder into the game's Mods folder as it is.

items.json

{
    // New item: starts from cooked pork (a food), then changes what it names.
    "items": [
        {
            "id": "berry_jam",
            "copy": "cooked_pork",
            "name": "Berry Jam",
            "description": "Sweet and keeps for ages.",
            "food": 30,
            "spoilDays": 0,
            "stackSize": 10,
            "model": "clay_pot"
        },
        // A game item with the same id: only the fields named here change.
        {
            "id": "rope",
            "stackSize": 50
        }
    ]
}

mod.json

{
    "id": "example.berryjam",
    "name": "Berry Jam",
    "version": "1.0",
    "author": "Seeds & Circuits",
    "description": "Adds berry jam (crafted from blueberries and a clay pot) and lets rope stack to 50."
}

recipes.json

{
    "recipes": [
        {
            "result": "berry_jam",
            "count": 1,
            "category": "Food",
            "craftTime": 3,
            "ingredients": [
                { "item": "blueberry", "count": 5 },
                { "item": "clay_pot", "count": 1 }
            ]
        }
    ]
}