Fast Surface
A vanilla worldgen optimization mod to optimise block calculations during surface builder
- Loaders
- FabricQuilt
- Downloads on Modrinth
- 275K
- Followers on Modrinth
- 32
- versions
- 19
- Updated
- October 1, 2026Oct 1
- Published
- in 2026
At a glance
Install on the server only; players don't need it
Fast Surface is a vanilla worldgen optimization mod, that optimizes block collections in surface builder.
Does the mod change world generation? The mod maintains vanilla parity, including with any datapacks. Do keep in mind, Vanilla non-determinism.
Can I use custom worldgen mods with this? Yes, the mod will fallback to normal execution where it encounters modded content. Though it may not work with mods that add custom code to surface builder using mixins.
Fast Surface is part of Reverie Projects, check out our other mods as well.
How does this mod work?
Fast Surface works by packing,rewriting and optimizing chunk data reads and writes during surface builder by replacing the buildSurface function with an optimized version.
How fast is it?
About 40% faster surface builder function in overworld, about 170% faster in nether and just instantaneous in the end.
Socials
Credits
- No-one specific right now
- Thanks to everyone who reported bugs, and tested the mod
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FAQ
How to install Fast Surface?
Install Fabric for your Minecraft version, download Fast Surface for the same version and loader, put the file into the mods folder and launch the game with the loader profile.
Which Minecraft versions does Fast Surface support?
Fast Surface has builds for Minecraft 26.2–26.3.
Is Fast Surface needed on the server?
Server only — players don't need to install it
Which mods is Fast Surface incompatible with?
The author lists it as incompatible with Moonrise.