Top ECS GitHub Repositories & Tools (2026)

Modern C++ library for the development of real-time graphical applications

Firefox CSS Theme/Style for manual customization

The Ruby Spec Suite aka ruby/spec

🔥 Next.js (React) headless eCommerce site with Typescript, WordPress (WooCommerce) backend and Algolia search

Elodin simulation and flight software monorepo.

Game engine for 2D and 3D projects with entity component system (ECS) and data-oriented design

Enterprise-ready MCP Gateway & Registry that centralizes AI development tools with secure OAuth authentication, dynamic tool discovery, and unified access for both autonomous AI agents and AI coding assistants. Transform scattered MCP server chaos into governed, auditable tool access with Keycloak/Entra integration.

Latios Space Shooter Sample - an open Unity DOTS Project using the Latios Framework

Rust crate for writing GStreamer plugins and various plugins - This repository moved to https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs

A simple and powerful entity component system (ECS) written in C++17