Create Train Physics
by Szedann
Create Train Physics changes how Create trains move, replacing the default speed behavior with simulated physics for NeoForge 1.21.1.
What it does
The mod makes trains built with Create follow more realistic physics. Tractive effort is simulated, so a locomotive's pull depends on its setup, and the maximum turn speed of a train changes dynamically with the track and the load. Mass affects how a train accelerates and brakes, and a mass power simulation models the output of engines against the weight they haul.
Fuel use is modeled as well. Diesel Generators and Electro Energetics add power sources to the train systems, and Crafts Additions adds further content around them. The mod is released for NeoForge only, and its files target 1.21.1 alone.
Servers that run it need every player to install it too. The code is open source under the GNU Lesser General Public License v2.1 only, and the author publishes source code and an issue tracker.
Key features
Realistic train physics
Trains built with Create move under a more detailed physics model than the default Create behavior.
Tractive effort simulation
A locomotive's pulling force is simulated, so acceleration depends on the engine and the weight it moves.
Dynamic maximum turn speed
The speed at which a train can take a curve changes with the train and the track.
Realistic fuel usage
Fuel consumption follows the power a train draws, and Diesel Generators supply power for the setup.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Heavy freight trains
Players hauling long, heavy consists can use mass and tractive effort to plan engine counts and grades.
Fuel-based railways
Fuel use and generator output give a railway a supply cost that the default Create trains do not model.
Who it’s for: Players who build Create railways on NeoForge 1.21.1 and want trains that respond to weight, traction and fuel. Server owners running Create rail networks can install it on the server and on every client.
How it compares
Create: Railway Additions adds rail content for NeoForge 1.21.1 under All rights reserved, and it is closed source. Create: Bullet Train also targets 1.21.1 on NeoForge under All rights reserved. Create Train Parts is open source under the MIT License and covers both Forge and NeoForge for 1.20.1 – 1.21.1, which is a wider range than this mod.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Create Train Physics | NeoForge | 1.21.1 | Client and server | 2026-01-14 |
| Create: Railway Additions | NeoForge | 1.21.1 | Client and server | 2026-08-19 |
| Create: Bullet Train | NeoForge | 1.21.1 | Client and server | 2026-08-14 |
| Create Train Parts | Forge and NeoForge | 1.20.1 – 1.21.1 | Client and server | 2026-07-21 |
Questions
Which loader does Create Train Physics need?
Does the server need Create Train Physics?
Does Create Train Physics require other mods?
In the catalog
Create Train Physics is one of 3,932 Transportation mods on ModsFinder, and one of 1,743 Transportation mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
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Official listing
- Modrinth page
- modrinth.com/mod/create-train-physics
- Owner
- Szedann
- Published
- 2026-01-14
- Updated on Modrinth
- 2026-01-14
- Facts verified
- 2026-10-15