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Alloy Smelter

Adds a multi-block structure for smelting ores
by TheFogIOF
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558,859 downloads
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Updated Jul 6, 2026
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Ores and Resources Technology

Alloy Smelter

This mod adds 3 levels of multi-block structure for smelting ore, made of Bricks, made of Polished Blackstone, made of End Stone Bricks. All recipes from lower level forges work in higher level forges. In its basic configuration, it serves as a simple way to increase the speed of smelting ores, but you can add recipes and change block for forge as you see fit. These features are primarily intended for mod and modpack authors.

Example

IMPORTANT

If you have an old version of the mod and you updated to the new version, where there are 5 slots in the forge, if you placed forge block in your world, the world will not start. Break all the forge blocks in your world, then update the mod.

There are only two smelting recipes for each vanilla ore for each forge level. When smelting one item, it can be placed in any slot in the forge. If a recipe contains 2+ items, the order in which they are placed in the slots is important.

Features

Forge automation

You can use both hoppers and blocks from other mods (ae2, etc.) to automate the forge. For the pattern provider (ae2): on any side except the top and bottom. For hoppers: the output slot is located bottom the forge, and the input slot is on top. The hopper loads items into the input slots like a chest; the hopper does not have access to the fuel slot.

Change blocks for each level of the forge.

To change the blocks required for the forge, you need to add the required tag to the block. You can do this using datapack or kubejs.

Each forge level has its own BlockTag:

  • Forge Tier 1: alloy_smelter:alloy_smelter_blocks_tier1
  • Forge Tier 2: alloy_smelter:alloy_smelter_blocks_tier2
  • Forge Tier 3: alloy_smelter:alloy_smelter_blocks_tier3

Add custom fuel

If you want to add fuel for the smelter, just add this tag "alloy_smelter:alloy_smelter_fuel" to any other fuel.

Add and edit recipes for the forge

To create a recipe you can use datapacks or kubejs. Having created a json file with your recipe.

Example of json recipe

1.21.1

{
  "type": "alloy_smelter:smelting",
  "ingredients": [
    {
      "ingredient": { "item": "minecraft:raw_copper" },
      "count": 1
    },
    {
      "ingredient": { "item": "minecraft:raw_iron" },
      "count": 2
    }
  ],
  "result": {
    "id": "minecraft:diamond",
    "count": 2
  },
  "smeltingTime": 200,
  "fuelPerTick": 1,
  "requiredTier": 2
}

1.20.1

{
  "type": "alloy_smelter:smelting",
  "ingredients": [
    {
      "item": "minecraft:raw_copper",
      "count": 1
    },
    {
      "item": "minecraft:raw_iron",
      "count": 2
    }
  ],
  "result": {
    "item": "minecraft:diamond",
    "count": 2
  },
  "smeltingTime": 200,
  "fuelPerTick": 1,
  "requiredTier": 2
}

Mod uses some resources from Alloy Forgery

Copyright (c) Wisp Forest, MIT License

My mod analog Alloy Forgery for Forge with my ideas and implementations.

Alloy Smelter 1.2.1 (1.21.1)
MC Client, 1.21.1, NeoForge, Server
Release 2025-12-15 Get
Alloy Smelter 1.2.1 (1.20.1)
MC Client, 1.20.1, Forge, Server
Release 2025-12-15 Get
Alloy Smelter 1.1.3 (1.21.1)
MC Client, NeoForge, 1.21.1, Server
Beta 2025-09-01 Get
Alloy Smelter 1.1.3 (1.20.1)
MC Client, 1.20.1, Forge, Server
Alpha 2025-09-01 Get

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