The Block Expansion
This project adds wool slabs to every wool type along with 2 new wool types with their slab varients. Also adds Obsidian Slabs And Stairs (Also adds…
⬇ Download on Modrinth
this project adds wool slabs and stairs, along with two extra wool block variants for more decoration options. It also adds obsidian slabs and stairs, crying obsidian slabs and stairs, plus crying obsidian fences, fence gates, and a polished crying obsidian block, it also adds iron stairs and slabs.
heat block – gives off heat and can melt nearby ice and snow.
cold block – freezes nearby water and cooling down lava to turn into obsidian.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.8
- 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.
- Ships as blockexpansion-1.1.1-neoforge-1.21.8.jar — drop this file into the mods folder
- Download size: 2.7 MB
- Download link checked 21 Aug 2026 — working
These come from our own check of the pack file, not from the source page.