One Way Invisible Block

A fully invisible block that can be walked through from one side, but not the other.

8 Downloads

forgeutility

Rent Server with this Mod

Screenshots

About this Mod

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.

Available Versions

One Way Invisible Block 1.0.0release

MC 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6forge

June 10, 2026

How to Install One Way Invisible Block on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set forge Loader

In the panel under "Egg", select the forge loader and matching Minecraft version (1.20.6).

Install Mod

Open the mod browser in the dashboard and search for "One Way Invisible Block". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

forge

Minecraft Versions

1.20.6, 1.20.5, 1.20.4 (+3 more)

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

One Way Invisible Block server crashes on startup – what to do?

Most common cause: wrong forge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.20.6). You can switch loaders with one click in the panel.

Is One Way Invisible Block compatible with forge?

One Way Invisible Block officially supports forge for Minecraft 1.20.6, 1.20.5, 1.20.4. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with One Way Invisible Block – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if One Way Invisible Block consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.