BackSlotAddon
Addon for the BackSlot mod which enables double sword on the players back
About this Mod
Small BackSlot mod addon which enables the double back sword when the belt slot and back slot has a sword item equipped.
Since 1.17.1 you can now carry shields on your back.
This mod is developed for Fabric.
There are no plans to develop a Forge version.
Modpack Permission:
Feel free to use it in any modpacks.
Bug Report:
Just report bugs at the github page.
Available Versions
How to Install BackSlotAddon 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 (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "BackSlotAddon". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1, 1.21, 1.20.6 (+3 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
BackSlotAddon 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 (1.21.1). You can switch loaders with one click in the panel.
Is BackSlotAddon compatible with fabric?
BackSlotAddon officially supports fabric for Minecraft 1.21.1, 1.21, 1.20.6. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with BackSlotAddon – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if BackSlotAddon 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 BackSlotAddon with just one click on your server.