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Willy’s Builder Extension project artwork

CurseForge · Hytale mod

Willy’s Builder Extension

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.

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which Willy’s Builder Extension release should I use?

Updated 2 months ago
Latest stable file William.Willy’s Builder Extension V3-3-5.zip
Game version Not listed
Mod system Built-in Hytale mod system

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

Where should Willy’s Builder Extension be installed in 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.

Separate client mod Not supported
World host / dedicated server Required
Mod system for this release Built-in Hytale mod system
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

Put Hytale mods on the world host or dedicated server. Singleplayer runs a local server too; Hytale does not use separate client mods.

What else does Willy’s Builder Extension William.Willy’s Builder Extension V3-3-5.zip need?

William.Willy’s Builder Extension V3-3-5.zip. Change the file and its required mods may change too.

No required dependencies listed for this file

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

Add Willy’s Builder Extension without breaking your instance.

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.

  1. 01

    Stick to this file

    Use William.Willy’s Builder Extension V3-3-5.zip. It targets Hytale; another release may target a different game build or dependency set.

  2. 02

    Bring the mods it needs

    This file does not list any required mods. Do not add a library just because a different file uses it.

  3. 03

    Enable it on the world host

    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.

  4. 04

    Pick the file you checked

    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

What does Willy’s Builder Extension add?

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

Willy’s Builder Extension releases and Hytale builds

6 of 6 releases match

Looking for an older file? The official CurseForge project page is in Resources.