Hydrogen

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Hydrogen

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Fabric optimization modpack client and server side.

No Theme
Vanilla+
QoL & Tweaks
Performance & Optimization
Mod Loaders
Fabric
Minecraft

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Where It Runs
Client Required, Server Optional

Required on the client. Installing it on the server adds functionality.

About

Project Details

Type
Modpack
Pack Size
Small / Light 43 mods
License
MIT License
Latest Version
1.21.5-5.2.0

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About

Description

IF YOU GET AN ERROR PASTE THIS IN YOUR JAVA ARGUMENTS:

-Dorg.lwjgl.system.stackSize=256

Hydrogen a powerful Fabric-based optimization modpack focused on performance and essential quality of life improvements. Whether you're exploring vast singleplayer worlds or playing multiplayer servers, Hydrogen delivers a smooth and enhanced vanilla-like experience.

Perfect for players who want to:

  • Boost FPS.
  • Enjoy a near-vanilla feel with subtle improvements.

Features

  • New and faster render engine.
  • Telemetry disabled.
  • Quality of life mods.
  • Easly transform singleplayer world in multiplayer.

❗Important: This modpack uses VulkanMod, which replaces Minecraft’s OpenGL rendering engine with Vulkan®. This makes the game faster and smoother, but not all mods are compatible with VulkanMod, so if you plan to add other mods, make sure to check them before playing.

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Benchmark

Test environment (as run):

  • GPU: NVIDIA RTX 3050
  • CPU: 13th Gen Intel i7-13700
  • RAM allocated to Minecraft: 4 GB
  • Minecraft version: 1.21.5
  • Modpack version tested: 4.4.0
  • Modpack defaults used: Render Distance 14, Simulation Distance 5, Fancy Graphics, All Particles, Fancy Clouds, Smooth Lighting, Entity Distance 100.

Methodology:
Measured average world creation time across six seeds (named hydrogen1hydrogen6) and recorded approximate average in-game framerate. "World creation time" here refers to the time measured for creating/loading a new world with the above settings (results and raw numbers below).

Results (raw samples and averages):

Metric HydrogenPack (modpack) Vanilla
World creation samples (sec) 0.866, 1.033, 0.800, 0.633, 0.633, 0.900 0.933, 1.996, 1.666, 1.666, 1.600, 2.000
Average world creation time (s) 0.811 1.644
Time change −51%
Approx. average FPS ~1800 fps ~700 fps
FPS change +157%

Analysis:

  • On this hardware and with 4 GB allocated, Hydrogen reduced the average world creation time from 1.644 s (vanilla) to 0.811 s — a reduction of approximately 50.7%.
  • Average framerate observed in these tests increased from ~700 fps (vanilla) to ~1800 fps (Hydrogen), an approximate 157% increase.
Linux users

If you use this modpack on linux you have to paste this line on the java arguments of your launcher

-Dorg.lwjgl.system.stackSize=256 

you also need to disable Zoomify

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