William.Willy’s Builder Extension V3-3-5.zip
5 Jun 2026
CurseForge · Hytale mod
Willy’s Builder Extension enhances building creativity by incorporating new blocks for greater design freedom. It adds uniquely shaped pillars that allow for more detailed, refined, and luxurious constructions.
Quick answer
Willy’s Builder Extension William.Willy’s Builder Extension V3-3-5.zip targets Hytale. Do not install it as a separate client mod. Enable it on the world host—the local server in singleplayer or the dedicated server in multiplayer. No required dependencies listed for this file.
Where it goes
Do not install it as a separate client mod. Enable it on the world host—the local server in singleplayer or the dedicated server in multiplayer.
Put Hytale mods on the world host or dedicated server. Singleplayer runs a local server too; Hytale does not use separate client mods.
William.Willy’s Builder Extension V3-3-5.zip. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional project dependencies. Check the creator notes before changing an existing world.
Before you install it
Built for Willy’s Builder Extension William.Willy’s Builder Extension V3-3-5.zip. Pick another file and the loader, install side or required mods may change.
Use William.Willy’s Builder Extension V3-3-5.zip. It targets Hytale; another release may target a different game build or dependency set.
This file does not list any required mods. Do not add a library just because a different file uses it.
Do not install it as a separate client mod. Enable it on the world host—the local server in singleplayer or the dedicated server in multiplayer.
Use the “Get this file” button beside William.Willy’s Builder Extension V3-3-5.zip. It opens that exact file at the source.
About this project
Willy’s Builder Extension is a construction-focused mod designed to significantly expand creative freedom and elevate the level of detail in your builds. By introducing a carefully crafted selection of new blocks, this mod allows players to move beyond standard shapes and create structures that feel more refined, immersive, and visually impressive.
One of the core additions of the mod is a set of quarter-height slabs, which open the door to advanced building techniques and smoother transitions between blocks. These smaller slabs make it possible to add subtle depth, layered flooring, detailed stairways, and intricate decorative elements that were previously difficult or impossible to achieve using traditional blocks alone.
In addition, the mod introduces new pillars with unique shapes, designed to add elegance and structural variety to buildings. These pillars are ideal for castles, mansions, temples, and other large-scale constructions where detail and luxury matter. Each pillar is crafted to blend naturally with existing building styles while still offering something fresh and distinctive.
To further enhance visual variety, transparent windows are included, allowing for cleaner designs, better lighting, and a more realistic feel in interior spaces. Alongside these features, several additional decorative blocks are provided to help builders create richer environments and more expressive architecture.
Overall, Willy’s Builder Extension is made for builders who want more control, more detail, and more creative possibilities. Whether you are designing small decorative interiors or grand, luxurious structures, this mod gives you the tools to transform simple ideas into truly impressive builds.
In v1.2 the highlight to mention is the implementation of different fences and gates.
Some bugs that the mod presented were corrected and new blocks called: Detallado were added.
These blocks allow more detail in constructions
V1-3: WARNING!
Remove the mod from your worlds before updating to this version to avoid errors.
An apology if the mod caused any errors, the system you had with the Walls was restructured and added the language file for translations and some other small changes to the mod, this will help the mod to be better structured.
Nota: There are still decorative models that are not implemented in the mod and will be implemented little by little since they still lack details and their respective textures.
V1-3-2
server.lang file updated
Doors can now be manufactured.
Project description from CurseForge.
Recent files
5 Jun 2026
7 Apr 2026
30 Mar 2026
18 Feb 2026
8 Feb 2026
3 Feb 2026
Looking for an older file? The official CurseForge project page is in Resources.