Modding

Overview

inZOI supports community modding through a combination of official tools and third-party platforms. KRAFTON has committed to making modding accessible to creators of all skill levels, from simple cosmetic swaps to full gameplay modifications using scripting. The official ModKit launched in June 2025 alongside the v0.2.0 update, providing a structured toolkit for creating custom content within Unreal Engine 5. Mods are distributed primarily through CurseForge, which integrates directly with the in-game Mod Browser for one-click installation. A large community also shares mods on NexusMods as an external alternative.

Mods vs. Canvas

Before diving into mods, understand the difference between mods and Canvas:

Canvas is the safe, simple option for cosmetic content. Mods offer far more power and variety but require some setup.

ModKit

The ModKit is inZOI's official modding toolkit, available through the Epic Games Store. It provides everything needed to create, package, and distribute custom content. KRAFTON describes it as 'an official tool designed to make modding easy and accessible for everyone.'

Asset Types

The ModKit supports several categories of moddable content:

Technical Tools

The ModKit includes several tools for creators working at different skill levels:

Wizard Tools

The Wizard system provides step-by-step guided interfaces for common modding tasks. Instead of requiring full Unreal Engine knowledge, Wizards walk creators through specific workflows using a guided UI.

CAZ Wizard

The CAZ Wizard streamlines creation of custom Create a Zoi content. The initial release (June 2025) supported outfit creation. The March 2026 update expanded the CAZ Wizard significantly, adding support for accessories, motion/animation modding, and facial modification tools. A MetaHuman guide is provided alongside the face modding tools to help creators work with Epic's character framework.

Sound Wizard

The Sound Wizard handles audio modifications. It supports both partial replacement (swapping individual sounds while keeping others) and addition (layering new audio on top of existing sounds). The March 2026 update improved the Sound Wizard with better partial replacement controls and the ability to add entirely new sound categories.

Planned Wizards

March 2026 ModKit Expansion

The v0.7.0 update (March 26, 2026) brought a major expansion to the ModKit, representing one of the largest modding upgrades since the toolkit's launch. Several long-requested features became available in this milestone update.

New Content Types

Three new categories of moddable content were added to the CAZ Wizard:

Hot-Swapping (Live Mod Loading)

One of the most impactful quality-of-life improvements in v0.7.0 is hot-swapping support. Players and mod creators no longer need to restart the game to apply newly downloaded or installed mods. Graphics resource mods can be installed and activated during gameplay, with changes taking effect immediately. For mod creators, this dramatically speeds up the testing cycle since they can iterate on assets and see results in real time without waiting through loading screens.

Project Management Tools

The ModKit's project management interface received new search and filter functions, making it easier to locate specific assets within large mod projects. Creators can now package multiple selected mods at once, streamlining the workflow for developers maintaining mod collections or content packs.

ToggleModInsight Cheat

A new developer cheat, ToggleModInsight, was added for modders to inspect what parameters can be exported in or for mods. When activated, it displays different parameters of in-game assets in real time, making it much easier to understand how existing content is structured and what values can be modified.

Mod Distribution

CurseForge (Official)

CurseForge is inZOI's official mod distribution platform with direct in-game integration. Mods uploaded to CurseForge appear in the in-game Mod Browser, allowing players to discover, install, and manage mods without leaving the game. The Mod Browser supports searching, one-click installation, deletion, and automatic updates.

NexusMods (Community)

NexusMods hosts over 900 inZOI mods as of early 2026, offering a wider variety than CurseForge. NexusMods tends to host more experimental mods, visual enhancements, gameplay tweaks, and performance modifications. Mods downloaded from NexusMods must be installed manually by extracting files into the game's mod directory. The NexusMods community also provides modding guides, tutorials, and troubleshooting forums.

Distribution Comparison

Installing Mods via CurseForge

CurseForge is the easiest way to install mods because everything happens inside the game. No manual file management is needed.

1. Open inZOI and go to the main menu.

2. Click the "Mods" button.

3. Browse mods using the Discovery tab (featured mods) or Browse tab (all mods with category filters).

4. Click on a mod to see its description and screenshots.

5. Click "Download" to install it.

6. Manage installed mods from the "Installed Mods" tab, where you can enable, disable, or uninstall individual mods.

CurseForge Limitations

The CurseForge desktop application does not support inZOI. Mods can only be downloaded through the in-game browser. There is a 50-mod limit for active CurseForge mods at one time. CurseForge mods are curated and must pass moderation guidelines, so the selection is smaller but safer than NexusMods.

Installing Mods via NexusMods

NexusMods hosts approximately 900+ mods with a wider variety than CurseForge, including visual enhancements, gameplay tweaks, and performance mods. Manual installation requires a few extra steps.

Step 1: Install the Mod Enabler

Before any NexusMods mods will work, you need the InZOI Mod Enabler. This is a one-time setup.

1. Go to nexusmods.com/inzoi and download the "InZOI Mod Enabler" (it is mod #1 on the site, created by FrancisLouis).

2. Extract the downloaded archive (you will get a BlueClient folder).

3. Copy the BlueClient folder into your inZOI installation directory (typically C:\Program Files (x86)\Steam\steamapps\common\inZOI\).

4. When prompted, choose to replace existing files.

The Mod Enabler bypasses PAK file signature checks, allowing the game to load unsigned mod files.

Step 2: Know Your Mod Folders

Different mod types go in different folders. This is the most confusing part for beginners, so keep this reference handy.

For legacy .pak mods, you may need to create the ~mods folder yourself inside BlueClient\Content\Paks\. The tilde (~) at the start of the folder name ensures it loads after the base game files, allowing mods to override originals.

Step 3: Install a Mod

1. Download the mod from NexusMods.

2. Extract the archive (.zip, .rar, or .7z).

3. Check the mod's description page for specific installation instructions. Most mods tell you exactly which folder to place files in.

4. For .pak/.utoc/.ucas files: place them in the ~mods folder.

5. For ModKit mods with a mod_manifest.json: place the entire mod folder in Documents\inZOI\Mods\.

6. For creation files (character presets, textures): place them in the matching Documents\inZOI\ subfolder.

7. Launch the game and verify the mod is working.

Mod Managers

If manually placing files feels tedious, community-built mod managers simplify the process.

How to Uninstall Mods

CurseForge Mods

1. Go to the main menu and click "Mods".

2. Navigate to the "Installed Mods" tab.

3. Click on the mod and select "Uninstall", or use "Uninstall All Mods" to remove everything.

NexusMods / Manual Mods

Creating Mods

The basic workflow for creating a mod with the ModKit:

1. Download the ModKit from the Epic Games Store.

2. Choose a Wizard for guided creation, or use the full Unreal Engine plugin for advanced content.

3. For 3D content: model in Blender or Maya using the official plugins, export as FBX, and convert with the UE plugin.

4. For data mods: edit JSON configuration files to adjust mechanics, pricing, or behaviors.

5. Package the mod using the ModKit's export tools.

6. Upload to CurseForge for in-game distribution, or share the files on NexusMods.

Official documentation and sample mods are included with the ModKit. The Modding Getting Started Guide provides a step-by-step walkthrough for new creators.

Engine Compatibility

Engine upgrades affect mod compatibility. Mods built for one Unreal Engine 5 version may not work on another without updates. The UE 5.4 to 5.6 migration in early 2026 requires mod creators to rebuild their content. The March 2026 roadmap milestone includes updated mod tools for 5.6 compatibility. During the engine beta test (March 5, 2026), mods were restricted to isolate engine-specific issues. Mod creators should monitor the official inZOI Forums for migration guides.

Safety and Trust

Mods involve downloading files from the internet and placing them in your game directory. Follow these practices to stay safe.

Updates and Compatibility

Game updates are the most common cause of mod issues. Here is what to expect and how to handle it.

2026 Modding Roadmap

KRAFTON's specialized modding task force has laid out a roadmap for expanding mod capabilities throughout 2026. Director Kjun noted that features remain 'subject to change and may not arrive in each quarter,' as the team prioritizes stability over speed.

Lua Scripting

Full Lua scripting support is planned for December 2026. Lua was chosen for its lightweight footprint and widespread use in game modding communities. Script modding will unlock capabilities far beyond cosmetic changes:

• Custom gameplay logic and new interaction types.

• Modified AI behaviors for Zois and NPCs.

• Entirely new game systems (custom careers, mini-games, progression mechanics).

• Advanced automation and quality-of-life tools.

• Systemic overhauls that change core game rules.

Before the official Lua support, some community modders on NexusMods have created Lua-based mod enablers that bypass standard loading restrictions. These unofficial tools are not supported by KRAFTON and may cause stability issues.

Recommended First Mods

If you are new to modding, these widely-used mods are good starting points.

Troubleshooting

Tips

• Start with CurseForge. The in-game browser is the simplest and safest way to try your first mods.

• Back up your save files before installing gameplay-altering mods. Saves are in Documents\inZOI\Saves\.

• Install a few mods at a time rather than dozens at once. This makes it easier to identify which mod causes a problem if something breaks.

• Read the mod description page carefully. Many installation issues come from putting files in the wrong folder.

• The Simple Mod Manager on NexusMods auto-detects your game folder and offers to install the Mod Enabler for you. Good for first-time setup.

• Performance mods (like InZOI Optimizer) are worth installing even on capable hardware. They reduce stuttering and improve frame pacing.

• If a mod has not been updated in several months and the game has received major patches, it is likely broken. Check comments for confirmation before installing.

• Use the in-game Mod Browser for the safest installation experience. CurseForge mods are tested for compatibility.

• After an engine update, wait for mod creators to release updated versions before re-enabling mods.

• JSON data mods are the easiest to create and do not require 3D modeling skills. Start there if you are new to modding.

• As of v0.7.0, you can hot-swap graphics mods without restarting the game. This makes testing much faster for both players and creators.

• Use the ToggleModInsight cheat to inspect asset parameters in real time when developing mods.

• Check the Modding Getting Started Guide for a complete walkthrough with screenshots and examples.