
Lootr Polymer Patch
A 100% serverside fabric patch for Lootr, adding per-player loot chests.
Screenshots

About this Mod
Lootr Polymer Patch
Lootr is a mod that makes all containers inside structures spawn with per-player loot so that every player can loot structures without having a large perimeter around spawn devoid of loot.
This mod patches Lootr to work completely server-side. That is, vanilla clients can join and use the mod. This mod must be installed alongside Lootr and its dependencies.
Lootr containers render as their vanilla counterparts, with a small lodestone icon.

A naturally generated chest in a ruined portal.
This mod also removes Lootr's advancements, making it an ideal-drop in for SMPs since they're just irritating for players and add bloat to what should be a simple server-side mod.
This mod probably works without too many changes on lower versions but you'll need to downgrade the included dependencies and rebuild it.
Available Versions
How to Install Lootr Polymer Patch 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 (1.21.11).
Install Mod
Open the mod browser in the dashboard and search for "Lootr Polymer Patch". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.11, 1.21.10, 1.21.9 (+3 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Lootr Polymer Patch 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 (1.21.11). You can switch loaders with one click in the panel.
Is Lootr Polymer Patch compatible with fabric?
Lootr Polymer Patch officially supports fabric for Minecraft 1.21.11, 1.21.10, 1.21.9. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Lootr Polymer Patch – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Lootr Polymer Patch 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 Lootr Polymer Patch with just one click on your server.