What is it? - Building - Getting Involved - Examples - API Reference - Tools - Who is using it? - License
https://www.carbongames.com/airmech-strike - AirMech is a free-to-play futuristic action real-time strategy video game developed and published by Carbon Games.
https://github.com/dbartolini/crown - Crown is a general purpose data-driven game engine, written from scratch with a minimalistic and data-oriented design philosophy in mind.
https://github.com/andr3wmac/Torque6 - Torque 6 is an MIT licensed 3D engine loosely based on Torque2D. Being neither Torque2D or Torque3D it is the 6th derivative of the original Torque Engine.
https://github.com/podgorskiy/KeplerOrbits - KeplerOrbits - Tool that calculates positions of celestial bodies using their orbital elements.
https://github.com/jpcy/ioq3-renderer-bgfx - A renderer for ioquake3 written in C++ and using bgfx to support multiple rendering APIs.