Runtime Studio – Asset Importer

Runtime Studio – Asset Importer

Building a sandbox editor is one thing. Giving players the freedom to build with their own assets is another.

Runtime Studio – Asset Importer extends Runtime Studio with a complete runtime asset importing system, allowing players to import their own models, textures, audio, materials, and more directly from their computer or from a URL.

Imported assets become part of the current level, allowing players to build with custom content just like any other Runtime Studio asset.

When a level is saved, exported, and shared, imported assets are included automatically, making it easy for other players to load the complete creation without missing content.

Instead of limiting players to a predefined asset library, you can let your community bring their own creations into your game.

Import Assets from Files or URLs

Bring new content into the game while it's running.

Players can import supported assets directly from their computer using the native file picker or download assets from a URL without leaving the game.

The importer integrates directly into Runtime Studio's Scene Settings, providing a familiar workflow for bringing external content into player projects.

Broad Format Support

Import a wide range of asset formats.

Runtime Studio – Asset Importer supports common runtime formats including images, audio, materials, static 3D models, archives, and Runtime Studio packages.

Supported formats include PNG, JPG, TGA, HDR, WAV, OGG, OBJ, FBX, glTF, GLB, ZIP, MTL, and Runtime Studio material files.

Import Review Window

Review assets before importing.

The Asset Importer overlay allows players to preview imported assets before confirming the import. Search, filter, select individual assets, select everything, or remove unwanted assets before they become part of the project.

Runtime Model Importing

Import static 3D models directly into Runtime Studio.

Supported model formats include OBJ, FBX, glTF, and GLB with support for meshes, materials, and textures.

For the broadest feature support, including characters and complex prefabs, use the Runtime Bundle Export tool to create Runtime Studio packages for import.

Save, Load, and Share

Imported assets become part of the level.

All imported assets integrate directly with Runtime Studio's persistence system. Imported models, textures, materials, audio, and other supported assets are saved alongside the level and restored automatically whenever it's loaded.

When players export and share their Runtime Studio levels, imported assets are packaged with them, allowing other players to load the level with all of its custom content intact.

WebGL Support

Import assets across desktop and browser platforms.

Runtime Studio – Asset Importer supports WebGL builds with browser-compatible file importing alongside native file dialogs on standalone platforms, allowing players to continue importing content regardless of where your game is running.

Runtime Bundle Export

Export Unity assets for Runtime Studio.

Runtime Studio – Asset Importer includes a Runtime Bundle Export tool for the Unity Editor, allowing you or your players to package Unity assets into portable Runtime Studio ZIP files.

Export GameObjects, rigged characters, skinned mesh renderers, meshes, materials, textures, audio clips, and more, then import them directly into Runtime Studio while preserving far more Unity-specific data than standard file formats.

Extensible Import API

Add support for your own file formats.

Runtime Studio – Asset Importer includes a simple API for extending the import pipeline. Register custom file types, create import processors, or build entirely custom runtime importers to support your own asset formats and workflows.

Whether you're importing proprietary files or integrating third-party systems, the Asset Importer API makes it easy to expand Runtime Studio without modifying the built-in importer.

Additional Features

• Import assets from local files
• Import supported assets directly from URLs
• Import review window with previews and search
• Automatic asset organization
• Runtime Studio Bundle ZIP package support
• Runtime save, load, export, and import integration
• WebGL-compatible file importing
• Extensible importer API for custom formats

🎮 Try It Yourself!

You can explore Runtime Studio & all plugins directly in your browser via WebGL, or download the Windows build on Itch.io

📦 What’s Included

✔ Full Source Code

✔ Quick Start Guide

✔ Examples

🧩 Runtime Studio Plugins

🌄 Runtime Studio – Terrain Editor

📥 Runtime Studio – Asset Importer

🎮 Runtime Studio – Game Creator 2 Integration

🔗 Links

🌐 Website

📖 Documentation

📚 Setup Guide

💬 Discord

📅 Roadmap