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Docker - the open-source application container engine. This chat is intended for contributors new to the Docker project or new to open source. For user help, please goto #docker on freenode. For advanced contributors please goto #docker-dev on freenode.

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A code-completion engine for Vim

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

GeoTrellis is a geographic data processing engine for high performance applications.

A genomics processing engine and specialized file format built using Apache Avro, Apache Spark and Parquet. Apache 2 licensed.

Xenko Game Engine (obsolete, please use https://gitter.im/xenko3d/xenko)

Immutable database and Datalog query engine in ClojureScript

A modular GIS engine written in JavaScript

Discussion room for debugging / planning / brain-storming / implementation relating to the Lean Open Source Project (https://github.com/QuantConnect/Lean)

ComfortableMexicanSofa is a powerful Rails 5 CMS Engine

Open source templating engine based on Microsoft's Razor parsing engine

A free and open 3D game engine written in D.

Conductor is a Rails engine that lets you do through a web UI what you'd normally do with the rails shell command.

The best way to run Django on Google App Engine

A rails forum engine

Terminal-based game engine for Go, built on top of Termbox

Hackathon is over, but we still need your help! Feel free to grab an issue https://github.com/Elgg/Elgg/issues

The rendering stack used by both Wagon and Station (new name of the engine). It includes the rack stack and the liquid drops/filters/tags.

The sophisticated documentation engine

JavaScript Game Engine

scala template engine: like JSP but without the crap and with added scala coolness

Bind C++ functions and classes into V8 JavaScript engine

A Universal Notifications Engine for Meteor JS

An open source game engine for C++17

Google App Engine Support package for Laravel 5

The most awesome validation engine ever created for PHP

An efficient voxel framework for Unity3d

Inspired by Silverlight; XAML engine using Javascript and rendering to the HTML5 Canvas.

OrigoDB - In-memory database engine for NET/Mono

novel game engine for Browser, iOS, Android , etc

HTML template engine for Go

Z-Way Home Automation engine

Rete based rules engine written in javascript

A powerful templating engine with inheritance, asynchronous control, and more (jinja2 inspired)

A ruby on rails engine which provides a basic web application to use with other ruby on rails applications.

The greatest user script engine on the Internet (a fork of Greasemonkey).

Slim, Jade like template engine for node

Generate static sites directly from Scala code

A tiny template engine inspired from Jinja2

A SSD-based graph processing engine for billion-node graphs

A Scope & Engine based, clean, powerful, customizable and sophisticated paginator for Rails 3 and 4

libvirt bindings for google v8 javascript engine (nodejs addon)

A dialogue engine for creating chat bots

A lightweight Groovy toolkit for Google App Engine Java

Open Sketch Search Engine

A configurable map engine

Fenom Template Engine for Laravel 5

The low level streaming torrent engine that peerflix uses