Top 23 unreal-engine Open-Source Projects

1. AirSim

   1 10 17,017 0.0 C++

   Open source simulator for autonomous vehicles built on Unreal Engine / Unity, from Microsoft AI & Research

   

2. InfluxDB

   influxdata.com featured

   InfluxDB high-performance time series database. Collect, organize, and act on massive volumes of high-resolution data to power real-time intelligent systems.

   

3. nakama

   2 42 9,590 8.8 Go

   Distributed server for social and realtime games and apps.

   

   Project mention: Nakama releases v3.23.0.Distributed server for social and realtime games | news.ycombinator.com | 2024-07-27

4. MultiplayerNetworkingResources

   3 10 7,857 6.9 C

   A curated list of Multiplayer Game Network Programming Resources

   

   Project mention: Quake 3 Source Code Review: Network Model | news.ycombinator.com | 2024-11-23

   shameless plug: https://github.com/0xFA11/GameNetworkingResources

5. ue5-style-guide

   4 20 5,574 0.0

   An attempt to make Unreal Engine 4 projects more consistent

   

6. GameDevMind

   5 9 5,491 6.8 Shell

   最全面的游戏开发技术图谱。帮助游戏开发者们在已知问题上节省时间，省出更多的精力投入到更有创造性的工作中去。

   

7. ActionRoguelike

   6 5 3,877 9.3 C++

   Third-person Action Roguelike made in Unreal Engine C++. Project for Unreal Engine C++ Course & Stanford University

   

8. UEVR

   7 3 3,508 9.4 C++

   Universal Unreal Engine VR Mod (4.8 - 5.4)

   

9. CodeRabbit

   coderabbit.ai featured

   CodeRabbit: AI Code Reviews for Developers. Revolutionize your code reviews with AI. CodeRabbit offers PR summaries, code walkthroughs, 1-click suggestions, and AST-based analysis. Boost productivity and code quality across all major languages with each PR.

   

10. rivet

    8 9 3,333 9.9 Rust

    🔩 Serverless for stateful backends (by rivet-gg)

    

    Project mention: Show HN: Instantly visualize any codebase as an interactive diagram | news.ycombinator.com | 2024-12-27

    This is fun! I’ve come across a few tools like this before and almost dismissed it due to past poor experiences. However, I just diagrammed our startup’s codebase, and it came surprisingly close to our hand-made diagram. I tried customizing it with specific instructions, but the one-generation-per-day rate limit is a bit restrictive.

    For comparison:

    - Hand made diagram: https://github.com/rivet-gg/rivet/blob/d45bf556e903404ab2df0...

    - GitDiagram (no instructions): https://gitdiagram.com/rivet-gg/rivet

11. UnrealCLR

    9 37 3,199 2.6 C#

    Unreal Engine .NET 6 integration

    

12. UEViewer

    10 59 2,585 3.0 C++

    Viewer and exporter for Unreal Engine 1-4 assets (UE Viewer).

    

13. ALS-Community

    11 16 2,390 6.3 C++

    Replicated and optimized community version of Advanced Locomotion System V4 for Unreal Engine 5.4 with additional features & bug fixes

    

14. simulator

    12 4 2,336 0.0 C#

    A ROS/ROS2 Multi-robot Simulator for Autonomous Vehicles

    

15. Blender-For-UnrealEngine-Addons

    13 5 2,156 9.5 Python

    I have created this addons for export asset from Blender to Unreal Engine 4

    

16. FModel

    14 8 1,924 8.1 C#

    Unreal Engine Archives Explorer

    

17. zfoo

    15 2 1,867 9.5 Java

    💡Extremely fast enterprise server framework, can be used in RPC, game server, web server.

    

18. RealtimeMeshComponent

    16 7 1,622 7.8 C++

    Unreal Engine 5 plugin component for rendering runtime generated content.

    

19. VoxelPluginFreeLegacy

    17 57 1,615 5.3 C++

    Voxel Plugin Legacy for Unreal Engine

    

20. FlowGraph

    18 6 1,438 9.0 C++

    Design-agnostic node system for scripting game’s flow in Unreal Engine

    

21. HoudiniEngineForUnreal

    19 6 1,431 9.2 C++

    Houdini Engine Plugin for Unreal Engine.

    

22. PBCharacterMovement

    20 11 1,333 6.4 C++

    HL2-style, classic FPS movement for Unreal Engine implemented in C++

    

23. unrealcpp

    21 2 1,265 2.2 C++

    Unreal Engine 4 C++ examples

    

24. Photogrammetry-Guide

    22 9 1,264 7.9 Python

    Photogrammetry Guide. Photogrammetry is widely used for Aerial surveying, Agriculture, Architecture, 3D Games, Robotics, Archaeology, Construction, Emergency management, and Medical.

    

25. Unreal-Engine-Guide

    23 17 1,205 7.3 C++

    Unreal Engine 5 Guide. Learn to develop games for Windows, Linux, macOS, iOS, Android, Xbox Series X|S, PlayStation 5, Nintendo Switch.

    

26. SaaSHub

    www.saashub.com featured

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    

unreal-engine related posts

• Why does the documentation say to use naming conventions like SKEL, SK, PHYS for Skeleton, Skeletal Mesh, Physics Asset, but all the start content use other abbreviations like SK, SKM and PA instead?

  1 project | /r/unrealengine | 11 Dec 2023

• How to prevent/resolve merge conflicts with blueprints? (UE5)

  1 project | /r/unrealengine | 7 Dec 2023

• UE5.3 on Linux (Pop!_OS)

  1 project | /r/unrealengine | 6 Dec 2023

• Help with ProjectBorealis/UEGitPlugin

  1 project | /r/unrealengine | 4 Dec 2023

• Blender 4.0

  1 project | news.ycombinator.com | 14 Nov 2023

• clangd extension helper for VSCode - Unreal 5.2+

  1 project | /r/unrealengine | 25 Oct 2023

• Created Neovim plugin for full LSP support for Unreal Engine

  1 project | /r/neovim | 19 Oct 2023
• A note from our sponsor - SaaSHub
  www.saashub.com | 18 Apr 2025

  SaaSHub helps you find the best software and product alternatives Learn more →

Index

Sponsored

InfluxDB high-performance time series database

Collect, organize, and act on massive volumes of high-resolution data to power real-time intelligent systems.

influxdata.com