Rare Ice Unofficial Port

Ports the rare ice mod to 1.21, currently in dev

5.3K Downloads

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Rent Server with this Mod

Screenshots

About this Mod

About

Rare Ice

Origin mod here.
This fabric mod ports the rare ice mod into 1.21.
Adds rare ice into the world, but can you find them all?

Note

This mod is currently in dev. (I did rewrite the nbt serialize logic)
Render & Worldgen are not identical to the original one.
No forge port planned

Available Versions

Rare Ice Unofficial Port 1.1.4-beta-1.21.8beta

MC 1.21.8fabric

September 8, 2025

Rare Ice Unofficial Port 1.1.4-beta-1.21.1beta

MC 1.21.1fabric

September 8, 2025

Rare Ice Unofficial Port 1.1.3-beta-1.21.1beta

MC 1.21.1fabric

July 22, 2025

Rare Ice Unofficial Port 1.1.2-beta-1.21.1beta

MC 1.21.1fabric

July 14, 2025

How to Install Rare Ice Unofficial Port 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 (1.21.8).

Install Mod

Open the mod browser in the dashboard and search for "Rare Ice Unofficial Port". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.8, 1.21.1

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Rare Ice Unofficial Port 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 (1.21.8). You can switch loaders with one click in the panel.

Is Rare Ice Unofficial Port compatible with fabric?

Rare Ice Unofficial Port officially supports fabric for Minecraft 1.21.8, 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Rare Ice Unofficial Port – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Rare Ice Unofficial Port 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.