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Minecraft>Mods>Flerovium
Flerovium logo

Flerovium

By👤MoePus

Greatly improve your fps with virtually no side-effects on graphics quality

Why Flerovium is a top-tier mod mod for Minecraft 1.21.1

Greatly improve your fps with virtually no side-effects on graphics quality

⚙️ Quick Resource Specs

Mod CreatorMoePus
Latest Version1.21.1
Supported Game Versions1.21.1, 1.20.1
File Size228.20 KB
Last UpdatedUpdated: July 14, 2026
Total Downloads21,376,322 downloads
Looking for the best mods updates? Flerovium by MoePus provides excellent features tailored for Minecraft 1.21.1 players. It stands out in the mods category for its stability and beautiful execution.

1.20.1 Forge Requires Embeddium

1.21.1 NeoForge Requires Sodium

Client Only Mod

 

Makes Item Rendering 50%+ faster

By:

  • Backface culling
  • Fast Math
  • LOD

Makes Particle Rendering about 50% faster

By:

  • Fast Math
  • Fast Culling
  • Cache Light

Makes Entity Rendering about 30% faster

By:

  • Fast Math
  • Backface culling

BeforeAfter

150% fps boost rendering 2000 item entities

 

Before

600% fps boost render 4096 items on Create's place cards (Every item is rendered, no distant culling)

Also does effects on Create's Mechanical Belt and Depot

 

Before

After

50% fps boost rendering 16384 Cherry Particles

 

Before

After

150% fps boost rendering 840 skeletons

The Ultimate Guide to Flerovium

If you are exploring the vast world of Minecraft modifications, Flerovium by MoePus is a standout mod that deserves your attention. With over 21,376,322 downloads, it has become a staple for players looking to enhance their experience. As the creator describes it, this project is "Greatly improve your fps with virtually no side-effects on graphics quality". Whether you are a veteran builder constructing massive cities, or simply a casual player looking to upgrade your survival world, this guide will provide you with all the essential details on how Flerovium alters the game.

What Makes It Special?

Unlike standard mods that simply alter superficial elements, Flerovium digs deep into the game's engine to provide a cohesive, performance-focused experience. MoePus has clearly spent significant time refining the project to ensure that every aspect feels polished and responsive for version 1.21.1.

Installation Guide

Getting Flerovium up and running is straightforward. Follow these step-by-step instructions:

  1. Verify Your Version: Ensure your Minecraft launcher is set to version 1.21.1.
  2. Install Mod Loader (if required): If this is a mod, download the compatible loader (Forge, Fabric, NeoForge).
  3. Download the File: Click the secure download button above to retrieve the official file from CurseForge.
  4. Move the File: Place the downloaded file into your `mods`, `shaderpacks`, or `resourcepacks` folder depending on the mod type.
  5. Launch and Enjoy: Open Minecraft, navigate to the respective settings menu, and activate Flerovium.

Compatibility & Performance

Compatibility is robust. Flerovium is designed specifically for version 1.21.1, taking full advantage of the latest engine optimizations. Since this is heavily focused on optimization, you can expect significant frame rate improvements on both low-end and high-end hardware.

Details

Downloads:21,376,322
Created:1 year ago
Updated:1 month ago
Project ID:1142875
License:All Rights Reserved
Environment:Server

Game Versions

1.21.11.20.1

Mod Loaders

ForgeNeoforge

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Flerovium

Screenshot 0
M
MoePus
MODS CREATOR
Downloads21.4M
Version1.21.1
TypeMODS
File Size228.20 KB

About This mods

Greatly improve your fps with virtually no side-effects on graphics quality

1.20.1 Forge Requires Embeddium

1.21.1 NeoForge Requires Sodium

Client Only Mod

 

Makes Item Rendering 50%+ faster

By:

  • Backface culling
  • Fast Math
  • LOD

Makes Particle Rendering about 50% faster

By:

  • Fast Math
  • Fast Culling
  • Cache Light

Makes Entity Rendering about 30% faster

By:

  • Fast Math
  • Backface culling

BeforeAfter

150% fps boost rendering 2000 item entities

 

Before

600% fps boost render 4096 items on Create's place cards (Every item is rendered, no distant culling)

Also does effects on Create's Mechanical Belt and Depot

 

Before

After

50% fps boost rendering 16384 Cherry Particles

 

Before

After

150% fps boost rendering 840 skeletons

📌Supported Minecraft Versions: 1.21.1, 1.20.1

How to Install

1. Make sure Minecraft Fabric or Forge launcher is installed. 2. Place the downloaded .jar or .mcpack file into your Minecraft mods folder. 3. Launch Minecraft and enjoy!