I find it useful for people that want to add the experimental changes to their already existing worlds and easier than to modify the nbt data of those.
If you want to add it to an already exesting world, just add the datapack and remove the "level.dat" file in the folder of your world.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.2, 1.21.3, 1.21.4
- 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 Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.
Verified by MCModsHub
- Downloads as Minecart Improvements.zip
- Download size: 180 KB
- Download link checked 29 Aug 2026 — working
These come from our own check of the pack file, not from the source page.