Free (as in freedom) open source clone of the Age of Empires II engine 🚀

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

Entitas is a super fast Entity Component System (ECS) Framework specifically made for C# and Unity

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

3D engine with modern graphics

3D C++ Game Engine - yet another open source game engine

zig game engine & graphics toolkit

Engo is an open-source 2D game engine written in Go.

Godex is a Godot Engine ECS library.

Svelto ECS C# Entity Component System

A high-performance C# based Archetype & Chunks Entity Component System (ECS) with optional multithreading.

C++ Game Engine and Editor

A modern re-implementation of the classic DOS game Duke Nukem II

Lightweight, multi-platform, data-oriented game engine.

A 👩‍💻 developer-friendly entity management system for 🕹 games and similarly demanding applications, based on 🛠 ECS architecture.

A continuation of the popular Artemis ECS framework

Realtime 3D Game-Engine with a focus on space sim. Written in C++ 14

Entity Component System focused on usability and flexibility.

🚀Actors is a framework empowering developers to make better games faster on Unity.

ECS for Lua