Mercurizer

Mercurizer

Better performance for low-end PCs, potato PCs. Possibly on mobile, and also on some mid- or high-end PCs

by
82.4K Downloads
fabricoptimization
Configure a Compatible Minecraft Server

Screenshots

Benchmark Sodium VS Mercurizer

About this Mod

mercurizer

a sodium addon for hardware that sodium can't save.

minecraft
fabric
sodium
status


integrated graphics · old cpus · limited ram · low-end hardware

mercurizer is a performance addon for sodium built specifically for hardware that struggles with modern minecraft.


ko-fi
patreon


why mercurizer?

sodium is already one of the best performance mods for minecraft.

but there is still a floor.

a lot of optimization assumes that you have a dedicated gpu, plenty of ram, and a relatively modern cpu.

mercurizer is made for the hardware that gets left behind.

the goal is simple: make minecraft playable on hardware that normally struggles to run it.


what makes it different?

automatic hardware tuning

on its first three launches, mercurizer benchmarks your system and measures:

  • gpu upload bandwidth
  • driver round-trip latency
  • cpu throughput

the results are averaged across all three runs and used to automatically tune chunk upload budgets and texture animation thresholds for your hardware.

if your gpu or driver changes, the benchmark can be performed again.

adaptive refinement

the startup benchmark is only the beginning.

after 30 seconds of stable gameplay, mercurizer observes real in-game frame times and refines its configuration based on how your hardware actually behaves.

anti-stutter recovery

when frame times suddenly spike, mercurizer quickly reduces the amount of work being uploaded.

when performance stabilizes, it gradually restores the workload.

this helps prevent the constant increase → spike → decrease → increase cycle that can cause micro-stutters.

vsync-aware

when vsync is enabled, mercurizer automatically applies a more conservative upload budget to reduce the chance of blocking the render thread.

legacy hardware safety

older intel hardware and certain amd driver configurations automatically receive more conservative settings.

when aggressive tuning could compromise stability, mercurizer prioritizes keeping the game running.


real hardware. real results.

up to 3.08× the fps of sodium on integrated graphics

mercurizer benchmark

test system

component specification
device macbook air 2017
cpu intel core i5-5350u
gpu intel hd graphics 6000
ram 8 gb
os debian 13
render distance 16 chunks
vsync off
world normal

tested with:

0.9.1-beta.2+mc26.2-1.1 · 0.9.1-beta.2+mc26.1.2-1.1 · 0.8.9+mc26.1.1-1.5 · 0.8.9+mc26.1-1.5 · 0.8.13-beta.2+mc1.21.11-1.1

benchmark results will vary depending on hardware, drivers, minecraft settings, and workload.


who is this for?


integrated graphics
low ram
old hardware
low end

mercurizer is primarily aimed at players who:

  • use integrated graphics such as intel hd, uhd, or amd vega
  • have 4 gb of ram or less available to minecraft
  • already use sodium but still struggle with performance
  • play on older laptops, office pcs, or budget hardware
  • don't have a dedicated gpu to throw at the problem

you don't need a gaming pc.

that's kind of the point.


compatibility

minecraft
fabric
sodium
iris

  • minecraft: 1.21.11+
  • edition: java edition
  • loader: fabric
  • required: sodium
  • compatible with: iris, sodium extra, and reese's sodium options

development status

status
release

mercurizer is still actively developed.

performance tuning at this level is highly hardware-dependent, so bugs, driver-specific issues, and unexpected behavior are possible.

if something goes wrong, please include:

  • gpu
  • cpu
  • ram
  • operating system
  • gpu driver version
  • minecraft version
  • sodium version
  • mercurizer version

the more hardware information you provide, the easier it is to reproduce the problem.


part of potato optimizer

potato optimizer

mercurizer is one of the core optimization mods behind potato optimizer — an ultra-lightweight modpack built for pcs that struggle with modern minecraft.


edonme studios


support development

if mercurizer helped you squeeze a few more frames out of an old machine, consider supporting development.


ko-fi
patreon



every bit of support helps keep low-end optimization alive.


Available Versions

mercurizer-fabric-0.9.2+mc26.3-1.0release
MC 26.3fabric
September 16, 2026
mercurizer-fabric-0.9.2+mc26.2-1.0release
MC 26.2fabric
September 16, 2026
mercurizer-fabric-0.9.2+mc26.1.2-1.0release
MC 26.1.2fabric
September 16, 2026
mercurizer-fabric-0.9.2-alpha.4+mc26.2-1.0release
MC 26.2fabric
August 31, 2026
mercurizer-fabric-0.9.2-alpha.4+mc26.1.2-1.0release
MC 26.1.2fabric
August 31, 2026

How to Install Mercurizer on Your Client

1

Install the Mod Loader Locally

Install fabric for your local Minecraft version.

2

Download the Matching File

Choose the Mercurizer file for fabric and Minecraft 26.3.

3

Install Mod

Place the .jar file in your local .minecraft/mods folder and restart Minecraft. No server-side installation is required.

Compatibility

Mod Loaders

fabric

Minecraft Versions

26.3, 26.2, 26.1.2 (+3 more)

Server-side

✗ Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Does Mercurizer need to be installed on the Minecraft server?

No. Modrinth marks Mercurizer as unsupported on the server side. Install it only in your local Minecraft mods folder. Your server can remain unchanged unless the mod page lists an additional dependency.

Which version and loader does Mercurizer require?

Use a file for fabric and your exact Minecraft version. Supported versions include 26.3, 26.2, 26.1.2. Files for different loaders are not interchangeable.

Mercurizer is not working – what should I check?

First check the Minecraft version, loader version and required dependencies. Put the .jar file in your local .minecraft/mods folder and remove older duplicates. Because this mod is client-side, adding server RAM will not fix it.

Minecraft Server for Your Group

Mercurizer stays on your client. Host a compatible world for your group.

Recommended RAM
4 GBfrom €5.2/mo
Minimum 3 GB | per 8 players
Create Server Now
Client Compatibility Guide
NVMe SSD Storage
DDoS Protection included

Details

License
LicenseRef-ARR-ME
Server-side
Unsupported

Supported Versions

26.326.226.1.226.1.126.11.21.11