For players chasing better performance in world generation and random-heavy game logic, Faster Random Mod focuses on one very specific bottleneck: Minecraft's random-related calls in MathHelper. It replaces those calls with a much faster alternative, making random operations over 100X faster and, in some cases, helping Minecraft load faster as well. The tradeoff is clear and important: the mod alters cave world generation because of limitations with ThreadLocalRandom, and the only listed surface features affected are Lava Pools and Azalea trees.
Key Features
- Replaces every random-related call in MathHelper with a faster alternative.
- Targets Minecraft's RNG system directly instead of adding broad gameplay changes.
- Claims random operations can run over 100X faster.
- May make Minecraft load faster in some cases.
- Changes cave world generation due to ThreadLocalRandom limitations.
- Only listed surface-generation effects are Lava Pools and Azalea trees, because both generate alongside caves.
Screenshots
How to Install
- Use a Fabric setup for the Minecraft version you want to run.
- Make sure Fabric Loader and Fabric API are installed.
- Download the Faster Random Mod file that matches your Minecraft version.
- Start Minecraft with the Fabric profile.
Requirements
| Requirement | Details |
|---|---|
| Mod Loader | Fabric, Quilt |
| Dependencies | Fabric Loader, Fabric API |
| Minecraft Version | 26.1, 1.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7, 1.21.6, 1.21.5, 1.19 |
Pros & Cons
Pros
- Very focused optimization aimed at Minecraft's random logic.
- Claims over 100X faster random operations.
- Can improve load times in some cases.
- Published on Modrinth with source code available on GitHub.
Cons
- Alters cave world generation.
- Lava Pools and Azalea trees can be affected because they generate alongside caves.
- Listed dependency on Fabric API and Fabric Loader.
Download
Always download mods from official sources to stay safe.
What's New
- Version 5.1.0 updates Faster Random with an overhauled JVM check.
- The mod now disables itself with a logged warning if the JVM does not support the required random generators.
- This change is intended to prevent crashes when modpacks are run on very old or headless JDKs.
- The update includes merged work from pull request #56.
FAQ
What does Faster Random Mod actually change?
It replaces every random-related call in MathHelper with a faster alternative. According to the mod description, that makes random operations over 100X faster and can also make Minecraft load faster in some cases.
Does Faster Random Mod affect world generation?
Yes. The mod alters cave world generation because of limitations with ThreadLocalRandom. The only listed surface features affected are Lava Pools and Azalea trees.
What do I need to run Faster Random Mod?
The listed requirements are Fabric Loader and Fabric API. The mod is categorized for Fabric and Quilt, and the provided download entries are for Fabric versions covering Minecraft 1.19 through 1.21.11, plus 26.1.
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