ModsJava
Atomic Microblocks Mod (1.21.1, 1.20.1) – Build Detailed Bases and Working
Java mod listed for Minecraft 1.20–1.21. Downloads from the MC Java Mods app on Android.
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Atomic Microblocks Mod adds detailed 16×16 building blocks and nuclear power mechanics to your world. It works in both Creative and Survival modes so you can decorate custom structures or craft items directly. The mod also introduces custom foliage, a working speaker kit for music, and an optional economy system to trade for materials.
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Features:
- Adds lightweight 16×16 decorative building blocks and crafting recipes.
- Brings nuclear power systems to create realistic power plants.
- Includes functional speaker kits that play music in your base.
- Adds decorative foliage blocks to brighten outdoor gardens.
- Provides an optional in-game shop system for purchasing extra materials.
- Works across both Creative and Survival gameplay.
Screenshots:



Atomic Microblocks Mod Download Links
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.1, 1.20.1
- 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: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
File checked by MCModsHub
- Downloads as 522645.mcaddon
- Download size: 14.4 MB
- Download link checked 7 Oct 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.