Fire and Flames
by Quarris
Fire and Flames is a NeoForge technology mod for Minecraft 1.21.1 that adds a medieval blacksmithing system, built around a multiblock Crucible for smelting and alloying.
What it does
Players process raw ores in a multiblock smelting structure that turns them into molten metals, which can then be used to create alloys. The Crucible can be powered by solid fuels or by fluid heat sources, and it offers several power options. Ore processing is meant to return more yield than standard furnace smelting.
Molten metal can be poured into Casting Tables and Casting Basins to form ingots, blocks and tool components. Those components are then used to forge custom tools and armour. The author built the system from the ground up, inspired by Tinkers Construct, and plans further unique features for later updates.
Installation needs only NeoForge for 1.21.1. Every player and the server need a copy of the mod. Its code is open source under the GNU General Public License v3.0 or later, and its recipes are defined with data packs and configs, which server owners can edit to fit a modpack.
Key features
Multiblock Crucible
A multiblock smelting structure turns raw ores into molten metals and creates alloys from them.
Custom tools and armour
Tool components cast from molten metal are assembled into custom tools and armour at the forge.
Casting Tables and Basins
Molten metal is poured into casting blocks to produce ingots, blocks and tool components.
Enhanced ore processing
Ores processed in the Crucible give a higher yield than standard furnace smelting.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Modpack progression
Pack authors can place the Crucible and casting steps into a progression path, with recipes set through data packs and configs.
Who it’s for: Players who want a metalworking chain with alloys and custom equipment, and server owners who want recipes tuned to their own pack.
How it compares
Magma Crucible is a NeoForge mod for 1.21.1 that is closed source under the MIT License and runs on client and server, so it is not open source. The Enderian Crucible is also NeoForge and client and server, but targets 1.21.4 and is not open source. Tinkers Construct (Unofficial port) is NeoForge for 1.21.1, client and server, and open source under the MIT License, so it can be compared directly on licensing.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Fire and Flames | NeoForge | 1.21.1 | Client and server | 2026-09-20 |
| Magma Crucible | NeoForge | 1.21.1 | Client and server | 2026-01-26 |
| The Enderian Crucible | NeoForge | 1.21.4 | Client and server | 2025-07-08 |
| Tinkers Construct (Unofficial port) | NeoForge | 1.21.1 | Client and server | 2026-09-02 |
Questions
Does Fire and Flames need to be installed on the server?
Which NeoForge version does Fire and Flames support?
Can the recipes be changed?
In the catalog
Fire and Flames is one of 8,499 Technology mods on ModsFinder, and one of 3,557 Technology mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
More from Quarris
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What the author says
Fire and Flames is a medieval fantasy blacksmithing mod that lets you forge custom tools and armor using molten metals processed in powerful multiblock structures. The heart of Fire and Flames is the Crucible - a multiblock smelting structure that transforms raw ores into molten metals and allows you to create…
Official listing
- Modrinth page
- modrinth.com/mod/fire-and-flames
- Owner
- Quarris
- Published
- 2025-05-19
- Updated on Modrinth
- 2026-09-20
- Facts verified
- 2026-10-15