
QuasiDusting
This Fabric mod modifies Minecraft's quasi-connectivity (QC) behavior, making it directional and toggleable by using redstone on a QC affected block
Screenshots

About this Mod
QuasiDusting (Fabric)
Overview
This Fabric mod modifies Minecraft's quasi-connectivity (QC) behavior, making it directional and toggleable by using redstone on a QC affected block. Using this, you can control which faces of QC-affected blocks are influenced by redstone signals a block away!
How It Works
- Right-click a QC-affected block with redstone dust on the face you want to be affected.
- Shift-Right-click to place redstone dust normally, without modifying the block's QC state.
- Quasi-connectivity only activates from the faces where redstone dust has been applied.
- This feature allows for easier, sensible, more compact, and more diverse redstone contraptions.

A variety of examples: The piston and dropper are active because they are quasi-connected to the lever, while the sticky piston is inactive because quasi-connectivity is disabled by default.
Compatibility
- This mod should be compatible with most other redstone mods.
- However, full compatibility has not been extensively tested.
- If you encounter bugs or compatibility issues with other redstone mods, please report them on the Github Page or in the issues tab.
Available Versions
How to Install QuasiDusting on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.4).
Install Mod
Open the mod browser in the dashboard and search for "QuasiDusting". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.4, 1.21.3, 1.21.2 (+2 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
QuasiDusting server crashes on startup – what to do?
Most common cause: wrong fabric 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 (1.21.4). You can switch loaders with one click in the panel.
Is QuasiDusting compatible with fabric?
QuasiDusting officially supports fabric for Minecraft 1.21.4, 1.21.3, 1.21.2. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with QuasiDusting – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if QuasiDusting 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.
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Rent Modded Server
Install QuasiDusting with just one click on your server.