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Resources / Mods / Flerovium

Flerovium

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

ModsFree1.20 – 1.21
by MoePus · listed from Modrinth
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Direct download from Modrinth · 5,315,714 downloads

What it does

Flerovium is a mod made by MoePus. Greatly improve your fps with virtually no side-effects on graphics quality.

It supports Minecraft 1.20 – 1.21. It has been downloaded 5,315,714 times on Modrinth. The last update came out on Sep 26, 2026.

Supported versions

1.211.20

Release history

Flerovium has had 35 releases on Modrinth since Mar 10, 2025. 11 of them came out in the past year. The newest is 1.2.0, released on Sep 26, 2026. It is made for Minecraft 1.21.1. It runs on NeoForge. The download is 189 KB.

VersionReleasedMinecraftType
1.2.0Sep 26, 20261.21.1Alpha
1.1.3Sep 12, 20261.21.1Beta
1.1.2Jul 14, 20261.21.1Release
1.2.19Jun 20, 20261.20.1Release
1.1.1Jun 20, 20261.21.1Release
Description from the author on Modrinth

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

Written by MoePus. Read it with pictures on Modrinth.

How to install Flerovium

  1. This mod runs only on your own game. Servers do not need it, so you can use it on any server.

  2. Install Forge and NeoForge for Minecraft 1.20 – 1.21.

  3. Download the .jar file from Modrinth and put it in the mods folder of your .minecraft directory.

  4. Start Minecraft with the Forge profile.

  5. Easier: in Prism Launcher or the Modrinth App, search for Flerovium in your instance's mods and click Install. It adds the loader and the mods it needs for you.

Full guide: How to install Minecraft mods

Compatibility

Minecraft versions
1.21, 1.20
Runs on
Forge, NeoForge
Where it runs
Client only (your game)
Edition
Java
Needs
Nothing else
License
GPL
Price
Free
Upkeep
Actively updated (Nov 13, 2026)

Flerovium compared with similar ones Compare all alternatives

ResourceDownloadsVersionsLast updatePrice
Fleroviumthe one you looked at5.3M1.20 – 1.21Sep 26, 2026Free
Enhanced Block EntitiesFoundationGames25.9M1.16 – 1.21Jan 20, 2025Free
CreateBetterFpsMoePus2.7M1.20 – 1.21Sep 19, 2026Free
CCSpeakerCodecsJackMacWindows161.20May 7, 2026Free

Questions

Does Flerovium work on Minecraft 26.x?

Not yet. The newest version it supports is Minecraft 1.21.

Is Flerovium free?

Yes. Flerovium is free to download from Modrinth.

Is Flerovium client-side or server-side?

Client-side. Flerovium goes in your own mods folder and works on any server, including servers without mods.

Is Flerovium still updated?

Yes. The last update came out in the past day.

What are the best alternatives to Flerovium?

The closest ones are Enhanced Block Entities, CreateBetterFps and CCSpeakerCodecs. Compare all alternatives

Alternatives to Flerovium

SodiumMods · 1.16 – 26.x

A high-performance rendering engine replacement for Minecraft, which greatly improves frame rates and reduces micro-stutter.

Free251,754,160 downloads
Compare all alternatives ›

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