Onyx

Onyx is a featureful Fabric client modpack designed to improve Minecraft performance, stability, and responsiveness while preserving the vanilla experience.

It builds on Opal but adds quality-of-life and visual client improvements such as HUD enhancements, zoom, and shader support. Designed for systems with higher performance headroom, Onyx delivers extra functionality without unnecessary overhead.

Players who prefer a strictly performance-only experience can use Opal, the lightweight version.

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Key Features
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• Significant performance improvements over vanilla
• Reduced memory usage and smoother gameplay
• Quality-of-life enhancements (HUD, zoom, etc)
• Fabric-based and multiplayer-safe
• Optimised to minimise performance impact

If you want only performance related features or are using a very low-end system, consider using Opal, which is the optimised base for a smoother experience.

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Testing
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Tested on a laptop running Windows 11. Specs include:

• Intel Core i5-1135G7 CPU
• Intel Iris Xe Graphics
• 8GB RAM (2GB Allocated)

Achieved average frame rate between 400 - 450 in different scenarios including world generation (fps is capped at 120 in game)

Tested on a chromebook running ChromeOS. Specs include:

• Intel Pentium Silver N5030 CPU
• Intel UHD Graphics
• 2770MB RAM (1024 Allocated, only around 800MB available)

Achieved average frame rate between 35 - 45 in normal gameplay and around 20 - 25 fps when generating the world and loading chunks

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Notes
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• Client-side only
• Works on vanilla and modded servers (where client mods are allowed)
• Resource packs and settings included are optional and can be changed freely
• Support for older versions will take longer to release as newer versions take priority

Onyx is intended to be a featureful, dependable optimisation base that you can use as-is or build on with additional mods. Backup your worlds and configs when updating. This modpack is geared towards very low-end devices and therefore I will be very selective about the mods added to keep the total amount small and easy to run.