ModsJava
Thermodynamica
Java mod listed for Minecraft 1.20. Downloads from the MC Java Mods app on Android.
⬇ Download on CurseForgeThe author built this one for Minecraft 1.20.1 on Forge. On other versions it may install and then do nothing.
Thermodynamica: High-Performance Multi-Threaded Heat Simulation
Thermodynamica is a robust, library-style mod designed to bring realistic temperature mechanics to Minecraft without the lag. It implements a sophisticated Parallel BFS (Breadth-First Search) Engine that calculates temperature diffusion across your world on separate threads, keeping your server TPS smooth even with complex thermal setups.
The "Naked" Simulation
Thermodynamica is designed as a simulation framework. Out of the box, it provides the "physics" but leaves the block definitions to you.
Note: You must install a compatible Data Pack to define your heat sources and material properties. There are 2 official datapacks:
Vanilla and create
Key Features
Threaded Performance: Heat spreading is calculated independently of the main game loop meaning low thermal TPS wont affect game TPS.
Dynamic Materials: Every block can have custom Conductivity (how fast heat moves), Transfer Rate, and Dissipation (loss to the environment).
Data Pack Driven: 100% of the block data is hot-reloadable via standard Minecraft JSONs. No Java knowledge required.
Ambient Awareness: Temperatures naturally re-equilibrate based on the biome's ambient temperature.
Easy Tooling
Included in the mods github repo is a Python-based GUI Tool (thermal_tool.py) that lets you:
Enter any block registry name.
Use visual sliders to tune thermal values.
Instantly generate or update Data Packs with a single click.
Commands
/thermodynamica status - Check active heat sources and engine health.
/thermodynamica tps - View detailed simulation profiling.
logo made by Tomato (handspoken)
logo made by Tomato (handspoken)
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.20.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
File checked by MCModsHub
- Ships as thermodynamica-0.3.1.jar — drop this file into the mods folder
- Download size: 147 KB
- Download link checked 3 Oct 2026 — working
These come from our own check of the pack file, not from the source page.