OpenVDB - Sparse volume data structure and tools

ArduPlane, ArduCopter, ArduRover, ArduSub source

An open source, turn-based strategy game with a high fantasy theme.

OpenMLDB is an open-source machine learning database that provides a feature platform computing consistent features for training and inference.

Cryptography Toolkit

Decentralized cryptocurrency blockchain daemon implementing the XRP Ledger protocol in C++

Stellarium is a free GPL software which renders realistic skies in real time with OpenGL. It is available for Linux/Unix, Windows and macOS. With Stellarium, you really see what you can see with your eyes, binoculars or a small telescope.

Light-weight system monitor for X, Wayland, and other things, too

mlpack: a fast, header-only C++ machine learning library

The core of our monitoring platform with a powerful configuration language and REST API.

Cataclysm - Dark Days Ahead. A turn-based survival game set in a post-apocalyptic world.

RetroShare is a Free and Open Source cross-platform, Friend-2-Friend and secure decentralised communication platform.

Apache Traffic Server™ is a fast, scalable and extensible HTTP/1.1 and HTTP/2 compliant caching proxy server.

Eclipse OMR™ Cross platform components for building reliable, high performance language runtimes

Mumble is an open-source, low-latency, high quality voice chat software.

The reference P4 software switch

Point Cloud Library (PCL)

The new Windows Terminal and the original Windows console host, all in the same place!

Python bindings for the Chromium Embedded Framework (CEF)

A framework for building native applications using React

GNU Radio – the Free and Open Software Radio Ecosystem

High-level tracing language for Linux

Cross-platform music production software

RGB Driver for Linux

An RSS/Atom feed reader for text terminals

ESP8266 WiFi Connection manager with web captive portal

Stan development repository. The master branch contains the current release. The develop branch contains the latest stable development. See the Developer Process Wiki for details.

Solidity, the Smart Contract Programming Language

Multipass orchestrates virtual Ubuntu instances

Open Source Routing Engine for OpenStreetMap

An open source re-implementation of RollerCoaster Tycoon 2 🎢

A fast, scalable, high performance Gradient Boosting on Decision Trees library, used for ranking, classification, regression and other machine learning tasks for Python, R, Java, C++. Supports computation on CPU and GPU.

Learn Robotics with JdeRobot

Share a single keyboard and mouse between multiple computers.

Powerful, mature open-source cross-platform game engine for Python and C++, developed by Disney and CMU

Scalable, Portable and Distributed Gradient Boosting (GBDT, GBRT or GBM) Library, for Python, R, Java, Scala, C++ and more. Runs on single machine, Hadoop, Spark, Dask, Flink and DataFlow

Guidelines Support Library

OpenTTD is an open source simulation game based upon Transport Tycoon Deluxe

cuML - RAPIDS Machine Learning Library

Mobile Shell

Godot Engine – Multi-platform 2D and 3D game engine

Xbox 360 Emulator Research Project

A modern open source rendering engine for animation and visual effects

An audio server, programming language, and IDE for sound synthesis and algorithmic composition.

Zeek is a powerful network analysis framework that is much different from the typical IDS you may know.

Diablo build for modern operating systems

Avogadro libraries provide 3D rendering, visualization, analysis and data processing useful in computational chemistry, molecular modeling, bioinformatics, materials science, and related areas.

Bitcoin Core integration/staging tree