Infestation Potion Backport

This project adds the Infestation Potion from 1.21 into old versions of Minecraft.

99 Downloads

fabricgame-mechanicsutility

Rent Server with this Mod

Screenshots

Infestation Potion Backport Screenshot 2

About this Mod

Lets you finally use the new 1.21 Infestation potion in old versions of minecraft for any people liking old versions. Fully Client/Server Compatible. If you spot anything off or have ideas, Please let me know!

Available Versions

Infestation Potion Backport 1.0.1release

MC 1.15.2, 1.16, 1.16.1, 1.16.2, 1.16.3, 1.16.4, 1.16.5fabric

November 13, 2025

Infestation Potion Backport 1.0.0release

MC 1.15.2, 1.16, 1.16.1, 1.16.2, 1.16.3, 1.16.4, 1.16.5fabric

November 13, 2025

How to Install Infestation Potion Backport 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 (1.16.5).

Install Mod

Open the mod browser in the dashboard and search for "Infestation Potion Backport". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.16.5, 1.16.4, 1.16.3 (+4 more)

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Infestation Potion Backport 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 (1.16.5). You can switch loaders with one click in the panel.

Is Infestation Potion Backport compatible with fabric?

Infestation Potion Backport officially supports fabric for Minecraft 1.16.5, 1.16.4, 1.16.3. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Infestation Potion Backport – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Infestation Potion Backport 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.