One-Way Invisible Block adds a fully invisible block that can be passed through from one side while remaining solid from the other. Perfect for secret entrances, hidden passages, security systems, adventure maps, minigames, and technical builds. The block does not interfere with lighting and blends seamlessly into any environment, allowing you to create smart barriers without affecting the look of your world.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.20.1, 1.20.2, 1.20.3
- 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 unidirectionalblock-1.0.0.jar — drop this file into the mods folder
- Download size: 16 KB
- Download link checked 22 Aug 2026 — working
These come from our own check of the pack file, not from the source page.