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Fast Surface

A vanilla worldgen optimization mod to optimise block calculations during surface builder

FabricQuilt
Loaders
FabricQuilt
Downloads on Modrinth
275K
Followers on Modrinth
32
versions
19
Updated
October 1, 2026Oct 1
Published
in 2026
Beautiful terrain you can get to enjoy faster with this mod. · swipe

At a glance

Runs on Fabric and Quilt
For Minecraft 26.2–26.3
Server only — players don't need to install it
Latest version — 1.0.0+26.2 from October 1, 2026
Requires ZConfig
License MPL-2.0 — free
Where it's needed
In gamenot neededOn serverrequired

Install on the server only; players don't need it

Game versions26.2–26.3

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

Chat with us on discord Chat with me on mastodon Chat with us on Gitter

Credits

  • No-one specific right now
  • Thanks to everyone who reported bugs, and tested the mod

Reverie Projects

Consider joining the Reverie Projects for sneak peeks and updates on development! By joining, you can:

  • Get installation help and technical support for alot of awesome projects
  • Get the latest updates about development
  • Talk with and collaborate with our team
  • And just hang out with the rest of our community!

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.

License and source
Mozilla Public License 2.0free to use and share; changes to the mod itself must be published under the same license
Original — Modrinth↗Files unchanged, verified with SHA-512Is this your mod? For rights holders

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