
Modrinth · Minecraft mod
derailment
A simple datapack that slightly modifies rail recipes
Quick answer
Which derailment release matches 1.21.6 Forge?
derailment 1+mod targets 1.21.4, 1.21.5, 1.21.6 with Fabric, Forge, NeoForge. Installation on the client is optional. Installation on the dedicated server is optional. No extra mods listed for this file.
Where it goes
Is derailment required on the client, server, or both?
Installation on the client is optional. Installation on the dedicated server is optional.
The source marks this as usable on both the client and server.
What else does derailment 1+mod need?
1+mod on 1.21.6 Forge. Every mod below is checked against that same setup.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add derailment without breaking your instance.
Built for derailment 1+mod on 1.21.6 Forge. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1+mod. It targets 1.21.4, 1.21.5, 1.21.6 with Fabric, Forge, NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
Installation on the client is optional. Installation on the dedicated server is optional.
- 04
Pick the file you checked
Use the “Get this file” button beside 1+mod. It opens that exact file at the source.
About this project
What does derailment add?
Makes it so powered rails can be made from copper, while changing its output and also activator and detector rail's to 8 instead of 6
Project description from Modrinth.
Pick your setup
derailment by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.9
5 loader builds1.21.8
5 loader builds1.21.7
5 loader builds1.21.6
5 loader builds1.21.5
5 loader builds1.21.4
5 loader buildsCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
derailment versions and loaders
1+mod
derailment-1.jar
14 Nov 2025
Looking for an older file? The official Modrinth project page is in Resources.