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


About this Mod
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
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!
Available Versions
How to Install Fast Surface on Your Server
Order Server
Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (26.3).
Install Mod
Open the mod browser in the dashboard and search for "Fast Surface". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
26.3, 26.3-rc-3, 26.3-rc-2 (+7 more)
Server-side
✓ RequiredRecommended RAM
6 GB(min. 4 GB)Frequently Asked Questions
Fast Surface server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 4 GB RAM is allocated and the loader matches the mod version (26.3). You can switch loaders with one click in the panel.
Is Fast Surface compatible with fabric and quilt?
Fast Surface officially supports fabric, quilt for Minecraft 26.3, 26.3-rc-3, 26.3-rc-2. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Fast Surface – how to optimize performance?
Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Fast Surface consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
Similar Mods
Rent Modded Server
Install Fast Surface with just one click on your server.