UnrealSharp is a plugin to Unreal Engine 5, which enables developers to create games using C# (.NET 9) with Hot Reload

UnrealCSharp, based on .NET 8 (Mono), is a C# programming plugin for UE.

Godot reverse engineering tools

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

A deeply-integrated C++20 coroutine plugin for Unreal Engine 5.

Multi-system emulator (NES, SNES, GB, GBA, PCE, SMS/GG) for Windows, Linux and macOS

Another fucking c# Steamworks implementation

A fast entity component system (ECS) for C & C++

A charting and data visualization library for Unity. Unity数据可视化图表插件。

Multiple game engine sdk for scripting the behavior of game users

Graphy is the ultimate, easy to use, feature packed FPS counter, stats monitor and debugger for your Unity project.

The automation tower defense RTS

AE_Skill_Editor的Plus版本

A Moonscript dialect compiles to Lua.

Imports Tiled files to Unity. Better than regular Tiled2Unity.

Injectable LUA scripting system, SDK generator, live property editor and other dumping utilities for UE4/5 games

Ant game engine

Provides an efficient allocation free async/await integration for Unity.

A wonderful list of Game Development resources.

A multi-threaded GOAP system for Unity

A maintained collection of useful & free unity scripts / library's / plugins and extensions

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

Box2D is a 2D physics engine for games

A fast and lightweight 2D game physics library.

UIEffect is an effect component for uGUI element in Unity. Let's decorate your UI with effects!

📚 Library of all kind of scripts, snippets & shaders for Unity

Soft2D-for-Unity

Soft2D: A 2D multi-material continuum physics engine designed for real-time applications.

Gaming meets modern C++ - a fast and reliable entity component system (ECS) and much more

Stride Game Engine (formerly Xenko)