Opal is a lightweight Fabric client modpack designed to improve Minecraft performance, stability, and responsiveness while preserving the vanilla experience.
Designed for low-end systems, laptops, Chromebooks, and battery-limited devices, Opal prioritises optimisation without adding gameplay changes or unnecessary features.
If you're looking for additional client features such as HUD enhancements or shader support, consider trying Onyx instead.
━━━━━━━━━━━━━━━━━━━━━━ Key Features ━━━━━━━━━━━━━━━━━━━━━━
• Significant performance improvements over vanilla
• Reduced memory usage and smoother gameplay
• No gameplay changes or added content
• Fabric-based and multiplayer-safe
• Tested on low-end hardware and mobile devices
If you want additional visual and quality-of-life features, consider using Onyx, which builds on the same optimisation philosophy with expanded functionality.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Testing
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 500 - 600 in different scenarios including world generation
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 50 - 60 in normal gameplay with around 30 - 35 fps when generating the world and loading chunks
━━━━━━━━━━━━━━━━━━━━━━━━ Notes ━━━━━━━━━━━━━━━━━━━━━━━━
• 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
Opal is intended to be a simple, 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.
