BepInEx - Unity & .NET Modding Framework

BepInEx is a versatile, open-source plugin framework for Unity and .NET games. It supports Mono, IL2CPP, and XNA/FNA/MonoGame, allowing seamless modding, customization, and extensions for developers and gamers. Preconfigured packs simplify installation and enable rapid creation of mods for both hobbyist projects and professional game enhancements.

About BepInEx

BepInEx is an open-source modding framework designed for Unity and .NET games. It supports Mono, IL2CPP, XNA, FNA, and MonoGame, providing a flexible foundation for creating, managing, and deploying mods efficiently.

Built with modularity and performance in mind, BepInEx allows developers and gamers to extend game functionality, customize behaviors, and integrate plugins seamlessly. Its architecture supports preconfigured packs, runtime patching, and advanced logging, making mod creation intuitive for both hobbyists and professional developers.

With an active community, GitHub-hosted plugins, and continuous updates, BepInEx ensures compatibility with the latest Unity releases and game engines, bridging the gap between user creativity and stable, real-world gameplay enhancement.

BepInEx Features

BepInEx is a powerful, open-source modding framework for Unity and .NET games. It enables easy plugin management, runtime patching, and seamless game modifications for developers and gamers alike.

Plugin Management

BepInEx allows users to load, manage, and organize plugins effortlessly. Easily add, remove, or update mods without modifying original game files or breaking compatibility.

Runtime Patching

Apply live patches to games during runtime, enabling real-time behavior changes, bug fixes, and new features without restarting the game or recompiling code.

Cross-Platform Support

BepInEx runs on Windows, Linux, and macOS, supporting both Mono and IL2CPP Unity builds. Ensures stable modding across multiple environments and platforms.

IL2CPP & Mono Support

Supports IL2CPP and Mono Unity builds, providing compatibility with most modern Unity games. Developers can patch, debug, and extend games reliably.

Configuration Management

Manage plugin settings via BepInEx config files. Customize game behavior, enable or disable features, and adjust mod parameters without editing game code manually.

Advanced Logging

BepInEx offers detailed runtime logs for plugin execution, errors, and events. Helps developers debug issues, track performance, and ensure stable gameplay modifications.

Mod Loader Framework

Provides a modular framework to load third-party mods safely. Supports dependency management, initialization order, and seamless integration of multiple plugins.

Community & Plugin Support

BepInEx benefits from an active community with numerous prebuilt plugins and extensions. Users can share, install, and maintain mods efficiently with community support.

How BepInEx Works

BepInEx is a flexible, high-performance modding framework for Unity and .NET games. It allows developers and gamers to load, patch, and manage plugins efficiently across different game builds.

Plugin Loading

BepInEx automatically detects and loads compatible plugins at game startup. Users can easily manage mods without modifying core game files or risking instability.

Runtime Patching

Apply real-time patches and modify game behavior during runtime. Developers can add new features, fix bugs, or tweak mechanics without restarting or recompiling.

Configuration Management

BepInEx lets users customize plugin settings via configuration files. Adjust mod parameters, enable or disable features, and maintain full control of the game environment.

Logging & Debugging

Track plugin activity and errors with detailed runtime logs. Developers can debug mods, monitor performance, and ensure smooth and stable gameplay modifications.

Download and Install BepInEx

Install BepInEx by downloading the correct build for your game type (Mono or IL2CPP). Ensure your Unity game version and platform match the selected BepInEx release before installation.
Supported Unity (Mono) games
IL2CPP Unity builds supported (Bleeding Edge builds recommended)
Windows, Linux, and macOS compatible
Administrator permissions may be required for some games
Game must be DRM-free or properly configured for modding
Matching BepInEx version with game architecture (x86 / x64)

Install from Source

git clone https://github.com/BepInEx/BepInEx.git
cd BepInEx

Build the project using Visual Studio or .NET CLI according to documentation guidelines.

Community & Resources

Detectron2 provides a wide range of pre-trained models for object detection, these models are optimized for high accuracy on standard benchmarks like COCO, LVIS, and Cityscapes, and can be fine-tuned on custom datasets to meet specialized computer vision needs.

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GitHub

Access the BepInEx repository, report issues, or contribute to the development of the framework.

Visit GitHub
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Documentation

Learn how to install, configure, and create plugins using the official BepInEx documentation.

Read Docs
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Community Discord

Join the BepInEx community on Discord to discuss mods, plugins, and development tips.

Join Discord

Guide for BepInEx

This guide for BepInEx provides step-by-step instructions on installation, plugin setup, configuration management, runtime patching, and troubleshooting, helping users quickly build and manage powerful game modifications with stability and control.

What Users Say About BepInEx

Developers and gamers worldwide trust BepInEx for stable, flexible, and powerful Unity game modding. Here’s what the community says about their experience with the framework.

Frequently Asked Questions

Have questions about BepInEx? This FAQ section provides clear answers about installation, plugin management, runtime patching, configuration, compatibility, and troubleshooting for Unity and .NET game modding.

Installation

Download the correct Mono or IL2CPP build from GitHub, extract files into your game’s root folder, and launch the game once to generate required directories.

Check the game’s folder for “Managed” DLL files (Mono) or a “GameAssembly.dll” file (IL2CPP) to determine the correct BepInEx version.

Yes, BepInEx works smoothly on Windows 10 and Windows 11 systems when installed properly in supported Unity game directories.

Yes, BepInEx supports macOS and Linux Unity games. Make sure you download the platform-specific release build.

Some games installed in protected directories may require administrator access to extract and run BepInEx properly.

Delete old BepInEx core files, replace them with the latest release version, and keep your plugins folder backed up before updating.

Compatibility

Runtime patching allows plugins to modify game behavior dynamically while the game is running, without changing original files.

Yes, bleeding-edge builds provide IL2CPP support, enabling modding for many modern Unity titles.

BepInEx does not modify core files permanently. However, always use trusted plugins to avoid instability.

Lightweight plugins typically have minimal impact, but poorly optimized mods may affect performance.

Yes, BepInEx works with most Steam Unity games if modding is allowed and files are placed correctly.

Yes, it supports many older Unity Mono builds, depending on compatibility with the framework version.

Configuration

Place compatible plugin DLL files inside the “BepInEx/plugins” folder. Restart the game and BepInEx will load them automatically.

Configuration files are automatically created in the “BepInEx/config” folder after running the game once.

Yes, simply remove the plugin DLL from the folder or rename the file extension to prevent it from loading.

Yes, it supports dependency attributes, ensuring required plugins load in the correct order without conflicts.

Open the generated configuration file in the config folder and adjust parameters using a text editor.

Yes, BepInEx is designed to handle multiple plugins simultaneously while maintaining stability and performance.

Maintenance

Ensure files are extracted correctly into the root folder and the correct build version is used.

Check the BepInEx log output file for errors and confirm plugin compatibility with your game version.

Logs are generated inside the BepInEx folder, typically named “LogOutput.log” for debugging purposes.

Delete all BepInEx files and folders from the game directory to restore the original state.

Yes, simply copy the BepInEx folder including plugins and config files to restore later if needed.

Visit the official GitHub repository and modding communities for documentation, plugin releases, and troubleshooting help.

BepInEx – Unity & .NET Game Modding

BepInEx – Powerful Unity & .NET game modding framework for plugins, patches, and customization across popular games with ease and stability apps.

Price: Free

Price Currency: $

Operating System: Windows, macOs, Linux

Application Category: Software

Editor's Rating:
4.7
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