A curated collection of open-source Unreal Engine plugins and reusable modules.
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★ Star counts checked on 2026-08-29; they may change over time.
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RealtimeMeshComponent · ★ 1,755 · MIT · UE5
A UE5 plugin component for rendering runtime-generated content, with a reusable mesh abstraction for procedural geometry, streaming data, and custom runtime rendering pipelines.
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PCGExtendedToolkit · ★ 684 · MIT · UE5
Fills in missing pieces around Unreal's PCG framework with graph theory, advanced pathfinding, spatial operations, filtering, asset management, and other tools for building procedural worlds.
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VoxelPluginFreeLegacy · ★ 1,756 · No license file found · UE4/UE5 legacy
The legacy free edition of Voxel Plugin for Unreal, focused on voxel terrain and procedural-world experiments. Review version support and project status before using it in a new production project.
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OceanProject · ★ 1,401 · No license file found · UE4.22/4.25 legacy
An environment plugin project that combines ocean simulation, sky simulation, buoyancy, time, and fish systems. It is a useful starting point for prototyping a large water environment rather than building each environmental system from scratch.
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ALS-Community · ★ 2,665 · MIT · UE5.4
A replicated and optimized community version of Advanced Locomotion System V4 for UE5.4, with additional features and bug fixes for third-person locomotion projects.
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AsyncLoadingScreen · ★ 1,109 · MIT · UE4/UE5
A free, open-source loading-screen system configurable from project settings. It can automatically display a loading screen when opening a new level, including workflows that do not rely on level streaming.
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UnrealCLR · ★ 3,310 · MIT · UE4/UE5
Unreal Engine .NET 6 integration for bringing C# and managed-code workflows into UE projects. It is useful for evaluating alternative gameplay, tooling, and interoperability patterns beyond native C++ and Blueprint.
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UnrealSharp · ★ 1,915 · MIT · UE5
A UE5 plugin that enables C# development on modern .NET with hot reload support. It is worth comparing with UnrealCLR when a team wants a current managed-code workflow for gameplay and editor extensions.
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sluaunreal · ★ 1,978 · BSD-3-Clause · UE4/UE5
A Lua development plugin for Unreal Engine 4 and 5. It is useful for teams exploring a lightweight scripting layer for rapid iteration while retaining Unreal's native C++ foundation.
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HoudiniEngineForUnreal · ★ 1,594 · BSD-3-Clause · UE5.6+
Houdini Engine plugin for Unreal Engine, designed to connect Houdini's procedural asset authoring with Unreal scenes and production workflows used by technical artists.
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UnrealEngineShaderPluginDemo · ★ 1,006 · MIT · UE4
A tutorial project showing how to implement HLSL Pixel and Compute shaders in UE4. It is particularly useful as a focused learning reference for custom shader plugins rather than as a general-purpose production plugin.
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Cesium for Unreal · ★ 1,232 · Apache-2.0 · UE5
A geospatial 3D platform integration for bringing global 3D Tiles, terrain, imagery, and real-world coordinates into Unreal. Use it for digital twins, mapping, simulation, or location-scale visualization projects.
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VRExpansionPlugin · ★ 761 · MIT · UE4/5
A mature UE VR framework with reusable interaction and multiplayer-oriented systems. It is a strong reference for projects that need more than the stock VR template.
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DonAINavigation · ★ 270 · MIT · UE4
A 3D dynamic pathfinding system designed for flying AI in dynamic or procedural worlds. It is especially relevant when standard ground-based navigation meshes do not describe the movement space.
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UEGitPlugin · ★ 817 · MIT · UE5
A refactored Unreal Engine Git Source Control plugin that brings Git operations into the editor workflow. It is relevant to teams evaluating native source-control integration for UE projects.
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SocketIOClient-Unreal · ★ 977 · MIT · UE4
Socket.IO client integration for Unreal, useful for connecting a game or visualization application to real-time web services, event-driven backends, and browser-facing systems.
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VaRest · ★ 1,133 · MIT · UE4
A REST API and JSON communication plugin for Unreal Engine. It is a practical reference for Blueprint-friendly HTTP integration with game backends and web services; verify its current engine support before adoption.
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HotPatcher · ★ 1,506 · MIT · UE4/UE5
A hot-update management and packaging plugin for Unreal. It is useful for studying how patch generation, content packaging, and update-oriented delivery can be organized around an Unreal project.
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ue5coro · ★ 1,103 · BSD-3-Clause · UE4/UE5
A deeply integrated C++20 coroutine plugin for Unreal Engine 4 and 5. Consider it when asynchronous gameplay or tooling logic would be clearer as structured coroutines than as chained callbacks.
Before adopting a plugin, review its license, supported Unreal Engine versions, target platforms, maintenance activity, documentation, and build instructions. Listed projects belong to their original authors; this repository is an independent curated index.
Open a pull request with the original repository URL, license information, supported UE version, and a brief description of the plugin.