RXB-Kit

Lightweight 16x16 building mod. Also nuclear power!

2.1K Downloads

forgeneoforgedecorationtechnologyutility

Rent Server with this Mod

Screenshots

About this Mod

As a builder, I’ve created this mod to help myself in my creative endeavours. It’s meant to be pretty lightweight and unintrusive for the most part, simply just adding more blocks that can help with building and decorating.

While the mod was mainly made for creative use, all blocks can be obtained in survival.

Hope you enjoy, and happy building!

Content

The mod is split into different content packs. These add a bunch of blocks and assets related to the theme of that specific pack.

Nuclear Pack

Contains various blocks for the construction of a working nuclear-inspired power plant. These can be obtained by opening nuclear crates.

School Pack

Contains various props that would commonly be found in schools.

Classic Pack

A collection of wooden blocks, furniture and more.

Icon by Rumi <3!

Available Versions

RXB-Kit 1.3.1 | The Rewriterelease

MC 1.21.1neoforge

July 31, 2025

RXB-Kit 1.3.0b | The Rewriterelease

MC 1.21.1neoforge

July 28, 2025

RXB-Kit 1.2.0 | NPP Updaterelease

MC 1.21.1neoforge

July 10, 2025

RXB-Kit 1.2.0 | NPP Updaterelease

MC 1.20.1forge, neoforge

August 24, 2024

RXB Kit 1.1.0release

MC 1.20.1forge, neoforge

December 23, 2023

How to Install RXB-Kit on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set forge Loader

In the panel under "Egg", select the forge loader and matching Minecraft version (1.21.1).

Install Mod

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

Compatibility

Mod Loaders

forgeneoforge

Minecraft Versions

1.21.1, 1.20.1, 1.19.4 (+1 more)

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

RXB-Kit server crashes on startup – what to do?

Most common cause: wrong forge 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 RXB-Kit compatible with forge and neoforge?

RXB-Kit officially supports forge, neoforge for Minecraft 1.21.1, 1.20.1, 1.19.4. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with RXB-Kit – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if RXB-Kit 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.