LineBlock is a Minecraft Fabric 1.20.4 mod that allows you to write and execute custom block-based scripts directly inside the game world.
With LineBlock, you can:
- Build logic using in-world blocks, similar to programming.
- Execute mathematical expressions and control structures like loops and conditions.
- Assign and modify variables.
- Use blocks to represent values of different types (INT, FLOAT, BOOL, STRING).
This mod is perfect for experimenting with programming logic directly in Minecraft — without typing a single line of code.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.20.4, 1.20.5, 1.20.6
- 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 — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Ships as lineblock-1.0.0.jar — drop this file into the mods folder
- Download size: 56 KB
- Download link checked 11 Sept 2026 — working
These come from our own check of the pack file, not from the source page.