ModsJava
Breach Protocol Decor Mod (1.21.1, 1.20.1) – Build High-Tech Containment
Java mod listed for Minecraft 1.20–1.21. Downloads from the MC Java Mods app on Android.
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Breach Protocol Decor Mod brings a large collection of laboratory blocks and sci-fi props inspired by containment horror games. It helps you design underground research sites, containment chambers, and secure hallways. The mod adds heavy blast doors, custom buttons, glowing server racks, medical lockers, and warning signs. You also get containment objects and facility gear to make every sector look authentic.
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Features:
- Adds heavy blast doors to seal off high-security containment sectors.
- Includes colorful server racks and control room computers for tech rooms.
- Introduces medical lockers, wall cabinets, and decorative lab furniture.
- Provides specialized buttons, switches, and facility warning signs.
- Features recognizable containment items and props from secret laboratory games.
- Supplies wearable lab clothes and protective facility guard uniforms.
- Spawns unique site structures and sound effects across your game.
- Lets server owners manage site systems through a built-in admin panel.
Screenshots:







Breach Protocol Decor 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 503528.mcaddon
- Download size: 76.1 MB
- Download link checked 23 Sept 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.